HIGH VOLTAGE CIRCUIT BREAKER PART 2

<h3 class="post-title entry-title"> <a href="http://hayatei.blogspot.com/2010/12/high-voltage-circuit-breaker.html">HIGH VOLTAGE CIRCUIT BREAKER PART 1</a></h3><h3 class="post-title entry-title"> </h3><div style="background-color: yellow; color: red; text-align: center;"><span style="font-size: medium;"><span>PNEUMATIC OPERATING DEVICE (KC – 1043) </span></span></div><div style="background-color: white; color: red; text-align: center;"><span style="font-size: small;"><br /> </span></div><div style="background-color: white; color: red; text-align: center;"><span style="font-size: small;"><br /> </span></div><div style="background-color: white; color: red; text-align: center;"><span style="font-size: small;"><br /> </span></div><div style="background-color: white; color: red; text-align: center;"><span style="font-size: small;"><br /> </span></div><div align="center"> <table border="0" cellpadding="0" cellspacing="0" class="MsoNormalTable" style="border-collapse: collapse; margin-left: -5.25pt;"><tbody> <tr style="height: 34.65pt;"> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(204, 204, 204) none repeat scroll 0% 0%; border-color: windowtext; border-style: double solid solid double; border-width: 4.5pt 1.1pt 3pt 4.5pt; height: 34.65pt; padding: 0cm; width: 27.35pt;" width="36"> <div align="center" class="MsoNormal" style="direction: ltr; margin-left: 14.4pt; text-align: center; text-indent: -17.65pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">No.</span></b></div></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(204, 204, 204) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double solid solid none; border-width: 4.5pt 1.1pt 3pt medium; height: 34.65pt; padding: 0cm; width: 97.95pt;" width="131"> <h5 align="center" style="margin: 0cm 4.9pt 0.0001pt; text-align: center;">Symptoms</h5></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(204, 204, 204) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double solid solid none; border-width: 4.5pt 1pt 3pt medium; height: 34.65pt; padding: 0cm; width: 133pt;" width="177"> <h6>Cause</h6></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double double solid none; border-width: 4.5pt 4.5pt 3pt medium; height: 34.65pt; padding: 0cm; width: 148.7pt;" width="198"> <div class="MsoHeading7">Remedy</div></td> </tr> <tr style="height: 34.35pt; page-break-inside: avoid;"> <td rowspan="3" style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid solid double; border-width: medium 1.1pt 1pt 4.5pt; height: 34.35pt; padding: 0cm; width: 27.35pt;" width="36"> <div align="center" class="MsoNormal" style="direction: ltr; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">1.</span></b></div></td> <td rowspan="3" style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 34.35pt; padding: 0cm; width: 97.95pt;" width="131"> <div class="MsoNormal" style="direction: ltr; margin-left: 11.65pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Magnetic valve fails to operate</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 34.35pt; padding: 0cm; width: 133pt;" width="177"> <div class="MsoNormal" style="direction: ltr; margin-left: 27pt; text-align: left; text-indent: -23pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(1)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> Valve locked at low-pressure<span>     </span>position.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 34.35pt; padding: 0cm; width: 148.7pt;" width="198"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Raise pressure.</span></div></td> </tr> <tr style="height: 34.35pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 34.35pt; padding: 0cm; width: 133pt;" width="177"> <div class="MsoNormal" style="direction: ltr; margin-left: 4pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(2)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> Coil burnt and open circuit</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 34.35pt; padding: 0cm; width: 148.7pt;" width="198"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Replace coil</span></div></td> </tr> <tr style="height: 34.35pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 34.35pt; padding: 0cm; width: 133pt;" width="177"> <div class="MsoNormal" style="direction: ltr; margin-left: 25.1pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(3)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> Limit switch malfunctioning, </span><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.5pt;"></span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 34.35pt; padding: 0cm; width: 148.7pt;" width="198"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Adjust pressure on limit switch or replace it.</span></div></td> </tr> <tr style="height: 35.55pt; page-break-inside: avoid;"> <td rowspan="3" style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid solid double; border-width: medium 1.1pt 1pt 4.5pt; height: 35.55pt; padding: 0cm; width: 27.35pt;" width="36"> <div align="center" class="MsoNormal" style="direction: ltr; margin-left: 8.65pt; text-align: center; text-indent: -8.65pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">2.</span></b></div></td> <td rowspan="3" style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 35.55pt; padding: 0cm; width: 97.95pt;" width="131"> <div class="MsoNormal" style="direction: ltr; margin-left: 11.65pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Magnetic valve stops halfway</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 35.55pt; padding: 0cm; width: 133pt;" width="177"> <div class="MsoNormal" style="direction: ltr; margin-left: 4pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(1)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> Drop in control pressure.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 35.55pt; padding: 0cm; width: 148.7pt;" width="198"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Raise pressure.</span></div></td> </tr> <tr style="height: 40.7pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 40.7pt; padding: 0cm; width: 133pt;" width="177"> <div class="MsoNormal" style="direction: ltr; margin-left: 20.55pt; text-align: left; text-indent: -20.55pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"><span> </span>(2)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> Circuit closing and <span>      </span>circuit opening magnetic </span></div><div align="center" class="MsoNormal" style="direction: ltr; margin-left: -9.45pt; text-align: center; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">valves operate <span>      </span></span></div><div align="center" class="MsoNormal" style="direction: ltr; margin-left: -9.45pt; text-align: center; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"><span> </span>simultaneously.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 40.7pt; padding: 0cm; width: 148.7pt;" width="198"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Temporarily turn off control power source</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">and operate valve again.</span></div></td> </tr> <tr style="height: 64.4pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 64.4pt; padding: 0cm; width: 133pt;" width="177"> <div class="MsoNormal" style="direction: ltr; margin-left: 27pt; text-align: justify; text-indent: -23pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(3)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> Magnetic valve will not self-hold.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 64.4pt; padding: 0cm; width: 148.7pt;" width="198"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Terminal P not supplied with <b>(+)</b> power (Turn on <b>(+)</b> power). Limit switches out of order (refer to descriptions on limit switch).</span></div></td> </tr> <tr style="height: 51.4pt; page-break-inside: avoid;"> <td rowspan="2" style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid double double; border-width: medium 1.1pt 4.5pt 4.5pt; height: 51.4pt; padding: 0cm; width: 27.35pt;" width="36"> <div align="center" class="MsoNormal" style="direction: ltr; margin-left: 7.9pt; text-align: center; text-indent: -11.15pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.5pt;">3.</span></b></div></td> <td rowspan="2" style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid double none; border-width: medium 1.1pt 4.5pt medium; height: 51.4pt; padding: 0cm; width: 97.95pt;" width="131"> <div class="MsoNormal" style="direction: ltr; margin-left: 10.2pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">Magnetic valve fails to stop automatically (electric circuit</span> <span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">is kept energized)</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 51.4pt; padding: 0cm; width: 133pt;" width="177"> <div class="MsoNormal" style="direction: ltr; margin-left: 27pt; text-align: justify; text-indent: -23pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(1)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> Improper pressure on limit switches</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 28.15pt; text-align: left; unicode-bidi: embed;"><br /> </div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 51.4pt; padding: 0cm; width: 148.7pt;" width="198"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Adjust pressure on limit switches.</span></div></td> </tr> <tr style="height: 65.65pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid double none; border-width: medium 1pt 4.5pt medium; height: 65.65pt; padding: 0cm; width: 133pt;" width="177"> <div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"><span> </span>(2)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> Limit switches <span> </span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 20.55pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">malfunctioning (contact metal dposited).</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double double none; border-width: medium 4.5pt 4.5pt medium; height: 65.65pt; padding: 0cm; width: 148.7pt;" width="198"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Replace limit switches.</span></div></td> </tr> </tbody></table></div><h3 class="post-title entry-title" style="font-weight: normal;"><br /> </h3><h3 class="post-title entry-title" style="font-weight: normal; text-align: center;"><span style="font-size: medium;"><span style="background-color: yellow; color: red;">OTHERS</span></span></h3><div align="center"> <table border="0" cellpadding="0" cellspacing="0" class="MsoNormalTable" style="border-collapse: collapse; margin-left: 1.6pt;"><tbody> <tr style="height: 33.1pt;"> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext; border-style: double solid solid double; border-width: 4.5pt 1pt 3pt 4.5pt; height: 33.1pt; padding: 0cm; width: 24.3pt;" width="32"> <div align="center" class="MsoNormal" style="direction: ltr; margin-left: 18.5pt; text-align: center; text-indent: -18.4pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">No.</span></b></div></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double solid solid none; border-width: 4.5pt 1pt 3pt medium; height: 33.1pt; padding: 0cm; width: 72.9pt;" width="97"> <div class="MsoHeading9">Symatoms</div></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double solid solid none; border-width: 4.5pt 1.1pt 3pt medium; height: 33.1pt; padding: 0cm; width: 187.15pt;" width="250"> <div align="center" class="MsoHeading8" style="text-align: center; text-indent: -142.1pt;">Cause</div></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double double solid none; border-width: 4.5pt 4.5pt 3pt medium; height: 33.1pt; padding: 0cm; width: 138pt;" width="184"> <div align="center" class="MsoNormal" style="direction: ltr; margin-left: 114.75pt; text-align: center; text-indent: -4cm; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">Remedy</span></b></div></td> </tr> <tr style="height: 44.5pt; page-break-inside: avoid;"> <td rowspan="4" style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid solid double; border-width: medium 1pt 1pt 4.5pt; height: 44.5pt; padding: 0cm; width: 24.3pt;" width="32"> <div align="center" class="MsoNormal" style="direction: ltr; text-align: center; text-indent: -5.9pt; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"><span> </span><b>1.</b></span></div></td> <td rowspan="4" style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 44.5pt; padding: 0cm; width: 72.9pt;" width="97"> <div class="MsoNormal" style="direction: ltr; margin-left: 14.35pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">Gas leak</span></b></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 44.5pt; padding: 0cm; width: 187.15pt;" width="250"> <div class="MsoNormal" style="direction: ltr; margin-left: 31.35pt; text-align: left; text-indent: -21.85pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">(1)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"> Packing for sealed part incompletely fitted into groove, and packing is ruptured.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 44.5pt; padding: 0cm; width: 138pt;" width="184"> <div class="MsoNormal" style="direction: ltr; margin-left: 7.95pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">Replace packing for sealed part.</span></div></td> </tr> <tr style="height: 36.8pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 36.8pt; padding: 0cm; width: 187.15pt;" width="250"> <div class="MsoNormal" style="direction: ltr; margin-left: 28.15pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">(2)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"> Welded part is defective, and welding material is defective.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 36.8pt; padding: 0cm; width: 138pt;" width="184"> <div class="MsoNormal" style="direction: ltr; margin-left: 7.95pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">Reweld and replace parts.</span></div></td> </tr> <tr style="height: 24.55pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 24.55pt; padding: 0cm; width: 187.15pt;" width="250"> <div class="MsoNormal" style="direction: ltr; margin-left: 28.15pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">(3)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"> Tightening of welded part<span>    </span>insufficient.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 24.55pt; padding: 0cm; width: 138pt;" width="184"> <div class="MsoNormal" style="direction: ltr; margin-left: 7.95pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">Check on tightners.</span></div></td> </tr> <tr style="height: 36.6pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 36.6pt; padding: 0cm; width: 187.15pt;" width="250"> <div class="MsoNormal" style="direction: ltr; margin-left: 28.15pt; text-align: left; text-indent: -20.85pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">(4)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"> Gas density detector malfunctioning.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 36.6pt; padding: 0cm; width: 138pt;" width="184"> <div class="MsoNormal" style="direction: ltr; margin-left: 7.95pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">Readjust or replace gas density detector.</span></div></td> </tr> <tr style="height: 121.85pt; page-break-inside: avoid;"> <td rowspan="5" style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid double double; border-width: medium 1pt 4.5pt 4.5pt; height: 121.85pt; padding: 0cm; width: 24.3pt;" width="32"> <div align="center" class="MsoNormal" style="direction: ltr; margin-left: 14.2pt; text-align: center; text-indent: -18.4pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">2.</span></b></div></td> <td rowspan="5" style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid double none; border-width: medium 1pt 4.5pt medium; height: 121.85pt; padding: 0cm; width: 72.9pt;" width="97"> <div class="MsoNormal" style="direction: ltr; margin-left: 14.35pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">Air leak</span></b></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 121.85pt; padding: 0cm; width: 187.15pt;" width="250"> <div align="center" class="MsoNormal" style="direction: ltr; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">(1)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"> Air leak of magnetic valve.</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 32.35pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">(a)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"> Valve packing damaged by foreign matter that has infiltrated valve.</span></div><div align="center" class="MsoNormal" style="direction: ltr; margin-left: 75.5pt; text-align: center; text-indent: -24pt; unicode-bidi: embed;"><br /> </div><div class="MsoNormal" style="direction: ltr; margin-left: 32.35pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">(b)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"> Valve seat damaged by foreign matter that has infiltrated valve.</span></div><div align="center" class="MsoNormal" style="direction: ltr; margin-left: 75.5pt; text-align: center; text-indent: -24pt; unicode-bidi: embed;"><br /> </div><div class="MsoNormal" style="direction: ltr; margin-left: 32.35pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">(c)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"> Magnet valve lever broken.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 121.85pt; padding: 0cm; width: 138pt;" width="184"> <div class="MsoNormal" style="direction: ltr; margin-left: 7.95pt; text-align: left; unicode-bidi: embed;"><br /> </div><div class="MsoNormal" style="direction: ltr; margin-left: 7.95pt; text-align: left; unicode-bidi: embed;"><br /> </div><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"><span> </span>(a)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"> Replace valve <span>   </span></span></div><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"><span>      </span>packing.Remove <span> </span></span></div><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"><span>      </span>foreign matter.</span></div><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"><span> </span>(b) </span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">Replace valve <span> </span></span></div><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"><span>      </span>body.</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 7.95pt; text-align: left; unicode-bidi: embed;"><br /> </div><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"><span> </span><b>(c)</b> Replace lever.</span></div></td> </tr> <tr style="height: 26.75pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 26.75pt; padding: 0cm; width: 187.15pt;" width="250"> <div align="center" class="MsoNormal" style="direction: ltr; margin-left: 28.15pt; text-align: center; text-indent: -20.85pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">(2)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"> Air leak from Same as (a) and (b) above.main valve.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 26.75pt; padding: 0cm; width: 138pt;" width="184"> <div class="MsoNormal" style="direction: ltr; margin-left: 7.95pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">Same as <b>(a)</b> and <b>(b)</b> above.</span></div></td> </tr> <tr style="height: 18.25pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 18.25pt; padding: 0cm; width: 187.15pt;" width="250"> <div class="MsoNormal" style="direction: ltr; margin-left: 7.3pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"><span> </span>(3)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"> Air leak from piping system.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 18.25pt; padding: 0cm; width: 138pt;" width="184"> <div class="MsoNormal" style="direction: ltr; margin-left: 7.95pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">Check on tightness.</span></div></td> </tr> <tr style="height: 46.6pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 46.6pt; padding: 0cm; width: 187.15pt;" width="250"> <div class="MsoNormal" style="direction: ltr; margin-left: 28.15pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">(4)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"> Increased amount of air leakage fromairin valve.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 46.6pt; padding: 0cm; width: 138pt;" width="184"> <div class="MsoNormal" style="direction: ltr; margin-left: 7.95pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;">Measure discharge of airing valve. If </span><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.6pt;">not specified valve, replace airing valve.</span><span style="font-family: Arial; font-size: 11pt; letter-spacing: 1.1pt;"></span></div></td> </tr> <tr style="height: 45.55pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid double none; border-width: medium 1.1pt 4.5pt medium; height: 45.55pt; padding: 0cm; width: 187.15pt;" width="250"> <div class="MsoNormal" style="direction: ltr; margin-left: 26.4pt; text-align: left; text-indent: -16.9pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.6pt;">(5)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.6pt;"> Others.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double double none; border-width: medium 4.5pt 4.5pt medium; height: 45.55pt; padding: 0cm; width: 138pt;" width="184"> <div class="MsoNormal" style="direction: ltr; margin-left: 7.95pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">Check packing and check on connections. <i><span style="letter-spacing: 0.7pt;"></span></i></span></div></td> </tr> </tbody></table></div><br /> <br /> <br /> <br /> <table border="0" cellpadding="0" cellspacing="0" class="MsoNormalTable" style="border-collapse: collapse; margin-left: auto; margin-right: auto; text-align: left;"><tbody> <tr style="height: 30.35pt; page-break-inside: avoid;"> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext; border-style: double solid solid double; border-width: 4.5pt 1pt 1pt 4.5pt; height: 30.35pt; padding: 0cm; width: 134.25pt;" width="179"> <div class="MsoNormal" style="direction: ltr; margin-left: 54.95pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.1pt;">Trouble</span></b></div></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double solid solid none; border-width: 4.5pt 1pt 1pt medium; height: 30.35pt; padding: 0cm; width: 150pt;" width="200"> <div align="right" class="MsoNormal" style="direction: ltr; margin-right: 29.9pt; text-align: right; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.1pt;">Possible Causes</span></b></div></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double double solid none; border-width: 4.5pt 4.5pt 1pt medium; height: 30.35pt; padding: 0cm; width: 150pt;" width="200"> <div align="right" class="MsoNormal" style="direction: ltr; margin-right: 24.05pt; text-align: right; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.1pt;">Possible Remedial</span></b></div><div align="center" class="MsoNormal" style="direction: ltr; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.1pt;">Action</span></b></div></td> </tr> <tr style="height: 101.25pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid solid double; border-width: medium 1pt 1pt 4.5pt; height: 101.25pt; padding: 0cm; width: 134.25pt;" width="179"> <div class="MsoNormal" style="direction: ltr; margin-left: 10.3pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Low insulation Resistance</span></b></div><div class="MsoNormal" style="direction: ltr; margin-left: 10.3pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(below 2000 Mega-ohms) between</span></div><div class="MsoBodyTextIndent3">-<span>  </span>Phase terminal and grounded frame, with breaker closed</div><div class="MsoNormal" style="direction: ltr; margin-left: 24pt; text-align: left; text-indent: -12pt; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">-<span>  </span>Phase terminals of a pole.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 101.25pt; padding: 0cm; width: 150pt;" width="200"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.7pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- Moisture</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.7pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- Dirty insulation surface <span> </span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.7pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"><span>  </span>internal and/or external</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.7pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- Poor oil</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.7pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- Carbon/copper particles</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 16.3pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">sticking to internal surface</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 101.25pt; padding: 0cm; width: 150pt;" width="200"> <div class="MsoNormal" style="direction: ltr; margin-left: 14.45pt; text-align: left; text-indent: -14.45pt; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;"><span> </span>-<span>  </span><span style="letter-spacing: 0.4pt;">Circulate dry hot air or oil through the breaker</span> <span style="letter-spacing: 0.4pt;">pole for 4 to 6 hours.</span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 15.55pt; text-align: left; text-indent: -13.1pt; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- </span><span style="font-family: Arial; font-size: 11pt;">Dismantle, clean, reassemble insulation resistance should be above, 2000 Megaohm, for 1.1 kV and above 10,000 megaohms above 36 kV<span style="letter-spacing: 0.4pt;"></span></span></div></td> </tr> <tr style="height: 84.45pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid solid double; border-width: medium 1pt 1pt 4.5pt; height: 84.45pt; padding: 0cm; width: 134.25pt;" width="179"> <div class="MsoNormal" style="direction: ltr; margin-left: 10.3pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Resistance between Terminals of Pole too high</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 10.3pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(above 100 microhms) (15 microhm per joint) contact</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 84.45pt; padding: 0cm; width: 150pt;" width="200"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.7pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- Reduced contact <span> </span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.7pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"><span>  </span>pressure</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.7pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- Loose connections</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.7pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- Contact surface damaged</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 13.95pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">due to repeated operations</span></div><div class="MsoNormal" style="direction: ltr; margin: 0cm 29.9pt 0.0001pt 6pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- Insufficient contact <span> </span></span></div><div class="MsoNormal" style="direction: ltr; margin-right: 29.9pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"><span>    </span>wipe</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.7pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- Oxide film on contact</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 13.95pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">surface</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 84.45pt; padding: 0cm; width: 150pt;" width="200"> <div class="MsoNormal" style="direction: ltr; margin-left: 20.45pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- Dismantle, repair and as </span></div><div class="MsoNormal" style="direction: ltr; margin-left: 15.55pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">semble again. If necessary, replace the contacts</span></div></td> </tr> <tr style="height: 107.55pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid solid double; border-width: medium 1pt 1pt 4.5pt; height: 107.55pt; padding: 0cm; width: 134.25pt;" width="179"> <div class="MsoNormal" style="direction: ltr; margin-left: 18pt; text-align: left; text-indent: -7.7pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Unequal contact Wipe</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> andTravel in 3-pole Measured from top surface of interrupter flange and the contact tip<b> </b>by a simple rod with</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 10.3pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- breaker open</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 10.3pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- breaker closed</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 107.55pt; padding: 0cm; width: 150pt;" width="200"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.7pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- Contact erosion due to <span> </span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.7pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"><span>   </span>re-</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 13.95pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">peated load operations or</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 13.95pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">short circuit operations</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.7pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- Unequal length due to <span> </span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.7pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"><span>   </span>Wrong <span> </span>adjustments <span> </span>of</span></div><div class="MsoNormal" style="direction: ltr; margin-right: 29.9pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"><span>     </span>linkages</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 107.55pt; padding: 0cm; width: 150pt;" width="200"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.7pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- Inspect contact tips</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.7pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- Replace if badly eroded</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 14.45pt; text-align: left; text-indent: -6pt; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">- Adjust contact if lengths are unequal in three pole</span></div></td> </tr> <tr style="height: 79.45pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid solid double; border-width: medium 1pt 1pt 4.5pt; height: 79.45pt; padding: 0cm; width: 134.25pt;" width="179"> <div class="MsoNormal" style="direction: ltr; margin-left: 18pt; text-align: left; text-indent: -7.7pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">One of the pole does not close</span></b></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 79.45pt; padding: 0cm; width: 150pt;" width="200"> <div class="MsoNormal" style="direction: ltr; margin-left: 23.7pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><span style="font-size: 11pt; letter-spacing: 0.4pt;"><span>-<span style="font-family: "Times New Roman"; font-size-adjust: none; font-size: 7pt; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">      </span></span></span><span dir="LTR"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Pull rod for contact damaged </span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 23.7pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><span style="font-size: 11pt; letter-spacing: 0.4pt;"><span>-<span style="font-family: "Times New Roman"; font-size-adjust: none; font-size: 7pt; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">      </span></span></span><span dir="LTR"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">One the links of that pole broken.</span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 23.7pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><span style="font-size: 11pt; letter-spacing: 0.4pt;"><span>-<span style="font-family: "Times New Roman"; font-size-adjust: none; font-size: 7pt; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">      </span></span></span><span dir="LTR"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Contact of that pole severely damaged</span></span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 79.45pt; padding: 0cm; width: 150pt;" width="200"> <div class="MsoNormal" style="direction: ltr; margin-left: 23.7pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><span style="font-size: 11pt; letter-spacing: 0.4pt;"><span>-<span style="font-family: "Times New Roman"; font-size-adjust: none; font-size: 7pt; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">    </span></span></span><span dir="LTR"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">dismantle the pole and repair the defect.</span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.7pt; text-align: left; unicode-bidi: embed;"><br /> </div></td> </tr> <tr style="height: 130.15pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid double double; border-width: medium 1pt 4.5pt 4.5pt; height: 130.15pt; padding: 0cm; width: 134.25pt;" width="179"> <div class="MsoNormal" style="direction: ltr; margin-left: 18pt; text-align: left; text-indent: -7.7pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Breaker operation too slow during opening</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> (Timing from trip command to contact separation instant too large (60 ms intead of say 40 ms)</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid double none; border-width: medium 1pt 4.5pt medium; height: 130.15pt; padding: 0cm; width: 150pt;" width="200"> <div class="MsoNormal" style="direction: ltr; margin-left: 23.7pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><span style="font-size: 11pt; letter-spacing: 0.4pt;"><span>-<span style="font-family: "Times New Roman"; font-size-adjust: none; font-size: 7pt; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">      </span></span></span><span dir="LTR"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Excessive friction in the pole unit.</span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 23.7pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><span style="font-size: 11pt; letter-spacing: 0.4pt;"><span>-<span style="font-family: "Times New Roman"; font-size-adjust: none; font-size: 7pt; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">      </span></span></span><span dir="LTR"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Contact grip to high.</span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 23.7pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><span style="font-size: 11pt; letter-spacing: 0.4pt;"><span>-<span style="font-family: "Times New Roman"; font-size-adjust: none; font-size: 7pt; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">      </span></span></span><span dir="LTR"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Trip coil operation sluggish.</span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 23.7pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><span style="font-size: 11pt; letter-spacing: 0.4pt;"><span>-<span style="font-family: "Times New Roman"; font-size-adjust: none; font-size: 7pt; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">      </span></span></span><span dir="LTR"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Low battery voltage, hence higher trip coil pick-up-time</span></span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double double none; border-width: medium 4.5pt 4.5pt medium; height: 130.15pt; padding: 0cm; width: 150pt;" width="200"> <div class="MsoNormal" style="direction: ltr; margin-left: 23.7pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><span style="font-size: 11pt; letter-spacing: 0.4pt;"><span>-<span style="font-family: "Times New Roman"; font-size-adjust: none; font-size: 7pt; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">      </span></span></span><span dir="LTR"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Chech control circuit.</span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 23.7pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><span style="font-size: 11pt; letter-spacing: 0.4pt;"><span>-<span style="font-family: "Times New Roman"; font-size-adjust: none; font-size: 7pt; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">      </span></span></span><span dir="LTR"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Chech closing spring visually.</span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 23.7pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><span style="font-size: 11pt; letter-spacing: 0.4pt;"><span>-<span style="font-family: "Times New Roman"; font-size-adjust: none; font-size: 7pt; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">      </span></span></span><span dir="LTR"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Indentify the cause and take remedial action</span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 23.7pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><span style="font-size: 11pt; letter-spacing: 0.4pt;"><span>-<span style="font-family: "Times New Roman"; font-size-adjust: none; font-size: 7pt; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">      </span></span></span><span dir="LTR"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Check supply to spring changing motor.</span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 23.7pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><span style="font-size: 11pt; letter-spacing: 0.4pt;"><span>-<span style="font-family: "Times New Roman"; font-size-adjust: none; font-size: 7pt; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">      </span></span></span><span dir="LTR"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Check pressure switches, relays, control wiring. </span></span></div></td> </tr> </tbody></table><div> </div><h3 class="post-title entry-title" style="font-weight: normal; text-align: center;"><br /> </h3><div align="center"> <table border="1" cellpadding="0" cellspacing="0" class="MsoNormalTable" style="border-collapse: collapse; border: medium none; margin-left: 1.15pt;"><tbody> <tr style="height: 31.45pt;"> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext; border-style: double solid solid double; border-width: 4.5pt 1pt 2.25pt 4.5pt; height: 31.45pt; padding: 0cm; width: 31.1pt;" width="41"> <div class="MsoNormal" style="direction: ltr; margin-left: 4.95pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">No</span></b></div></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double solid solid none; border-width: 4.5pt 1pt 2.25pt medium; height: 31.45pt; padding: 0cm; width: 85.35pt;" width="114"> <div align="center" class="MsoNormal" style="direction: ltr; margin-right: 32.75pt; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">ANN Item</span></b></div></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double solid solid none; border-width: 4.5pt 1pt 2.25pt medium; height: 31.45pt; padding: 0cm; width: 84.25pt;" width="112"> <div align="center" class="MsoNormal" style="direction: ltr; margin-right: 22.65pt; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">Initiation</span></b></div></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double solid solid none; border-width: 4.5pt 1pt 2.25pt medium; height: 31.45pt; padding: 0cm; width: 100.4pt;" width="134"> <div align="center" class="MsoNormal" style="direction: ltr; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">Probable Cause</span></b></div></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double double solid none; border-width: 4.5pt 4.5pt 2.25pt medium; height: 31.45pt; padding: 0cm; width: 124.8pt;" width="166"> <div align="center" class="MsoNormal" style="direction: ltr; margin-right: 37.1pt; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">Action and/or Countermeasure</span></b></div></td> </tr> <tr style="height: 60.4pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid solid double; border-width: medium 1pt 1pt 4.5pt; height: 60.4pt; padding: 0cm; width: 31.1pt;" width="41"> <div class="MsoNormal" style="direction: ltr; margin-left: 4.95pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">1.</span></b></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 60.4pt; padding: 0cm; width: 85.35pt;" width="114"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">230 kv gen, transf</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">breaker tripped</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 60.4pt; padding: 0cm; width: 84.25pt;" width="112"> <div class="MsoNormal" style="direction: ltr; margin: 0cm 22.65pt 0.0001pt 10.15pt; text-align: left; text-indent: -10.15pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;"><span> </span>1.</span></b><span style="font-family: Arial; font-size: 11pt;"> lock out relay BTG</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 10.15pt; text-align: left; text-indent: -10.15pt; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;"><span> </span><b>2.</b> Pole discrepancy</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 60.4pt; padding: 0cm; width: 100.4pt;" width="134"> <div align="center" class="MsoNormal" style="direction: ltr; margin-right: 22.65pt; text-align: center; unicode-bidi: embed;"><br /> </div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 60.4pt; padding: 0cm; width: 124.8pt;" width="166"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.95pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">Confirm the operated relay(s) by the taget on P.R.P.</span></div></td> </tr> <tr style="height: 60.4pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid solid double; border-width: medium 1pt 1pt 4.5pt; height: 60.4pt; padding: 0cm; width: 31.1pt;" width="41"> <div class="MsoNormal" style="direction: ltr; margin-left: 4.95pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">2.</span></b></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 60.4pt; padding: 0cm; width: 85.35pt;" width="114"> <div class="MsoNormal" style="direction: ltr; margin-left: 4.2pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">230 kv gen, transf, breaker</span></div><div class="MsoNormal" style="direction: ltr; margin: 0cm 32.75pt 0.0001pt 4.2pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">trip circuit unhealthy</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 60.4pt; padding: 0cm; width: 84.25pt;" width="112"> <div class="MsoNormal" style="direction: ltr; margin-left: 10.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">230 kv gen. trans.</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 10.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">breaker. Trip circuit</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 10.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">open.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 60.4pt; padding: 0cm; width: 100.4pt;" width="134"> <div class="MsoNormal" style="direction: ltr; margin-left: 18pt; text-align: left; text-indent: -12.15pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">1.</span></b><span style="font-family: Arial; font-size: 11pt;">Circuit breaker gas and/or air pressure</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 18pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">low.</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 18pt; text-align: left; text-indent: -12.15pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">2.</span></b><span style="font-family: Arial; font-size: 11pt;">Failure of aux, relay circuit.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 60.4pt; padding: 0cm; width: 124.8pt;" width="166"> <div class="MsoNormal" style="direction: ltr; margin-left: 18.6pt; text-align: left; text-indent: -12pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">1.</span></b><span style="font-family: Arial; font-size: 11pt;"> Check gas pressure and /or air pressure.</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 18.6pt; text-align: left; text-indent: -12.65pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">2.</span></b><span style="font-family: Arial; font-size: 11pt;"> Check the auxiliary relay circuit by circuit tester.</span></div></td> </tr> <tr style="height: 60.95pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid solid double; border-width: medium 1pt 1pt 4.5pt; height: 60.95pt; padding: 0cm; width: 31.1pt;" width="41"> <div class="MsoNormal" style="direction: ltr; margin-left: 4.95pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">3.</span></b></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 60.95pt; padding: 0cm; width: 85.35pt;" width="114"> <div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;"><span>  </span>230 kv gen. <span>   </span></span></div><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;"><span>  </span>transf. breaker</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">air and gas- press. Low</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 60.95pt; padding: 0cm; width: 84.25pt;" width="112"> <div class="MsoNormal" style="direction: ltr; margin-left: 10.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">230 kv gen. transf.</span></div><div class="MsoNormal" style="direction: ltr; margin: 0cm 22.65pt 0.0001pt 10.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">breaker, 30ACB,</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 10.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">30GCB, 30G1</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 10.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">operation.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 60.95pt; padding: 0cm; width: 100.4pt;" width="134"> <div class="MsoNormal" style="direction: ltr; margin-left: 18pt; text-align: left; text-indent: -12pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">1.</span></b><span style="font-family: Arial; font-size: 11pt;">Gas and/or air pressure low.</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 18pt; text-align: left; text-indent: -12.15pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">2.</span></b><span style="font-family: Arial; font-size: 11pt;"> Gas and/or air valve fault.</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 18pt; text-align: left; text-indent: -12.15pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">3.</span></b><span style="font-family: Arial; font-size: 11pt;">Fault of air compressor.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 60.95pt; padding: 0cm; width: 124.8pt;" width="166"> <div class="MsoNormal" style="direction: ltr; margin-left: 18.6pt; text-align: left; text-indent: -12.65pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">1.</span></b><span style="font-family: Arial; font-size: 11pt;"> Check gas pressure and/or air pressure.</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 18.6pt; text-align: left; text-indent: -12.65pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">2.</span></b><span style="font-family: Arial; font-size: 11pt;"> Check if any leakage in values and/or piping.</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 18.6pt; text-align: left; text-indent: -12.65pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">3.</span></b><span style="font-family: Arial; font-size: 11pt;"> Check the operating condition of air compressor.</span></div></td> </tr> <tr style="height: 74.05pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid solid double; border-width: medium 1pt 1pt 4.5pt; height: 74.05pt; padding: 0cm; width: 31.1pt;" width="41"> <div class="MsoNormal" style="direction: ltr; margin-left: 4.95pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">4.</span></b></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 74.05pt; padding: 0cm; width: 85.35pt;" width="114"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">230 kv gen. transf- BXR</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">pole discrepancy.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 74.05pt; padding: 0cm; width: 84.25pt;" width="112"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">230 kv gen, transf,</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">breaker.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 74.05pt; padding: 0cm; width: 100.4pt;" width="134"> <div class="MsoNormal" style="direction: ltr; margin-left: 18pt; text-align: left; text-indent: -12pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">1.</span></b><span style="font-family: Arial; font-size: 11pt;">Circuit breaker aux. contact failure.</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.85pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">2.</span></b><span style="font-family: Arial; font-size: 11pt;">Timer Tix fault.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 74.05pt; padding: 0cm; width: 124.8pt;" width="166"> <div class="MsoNormal" style="direction: ltr; margin-left: 18.6pt; text-align: left; text-indent: -12.65pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">1.</span></b><span style="font-family: Arial; font-size: 11pt;"> After disconnecting the circuit breaker from the</span><span style="font-family: Arial; font-size: 11pt;">system,</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 18.6pt; text-align: left; text-indent: -12.65pt; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;"><span>    </span>operate the breaker and check the circuit by tester.</span><span style="font-family: Arial; font-size: 11pt;"></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 18.6pt; text-align: left; text-indent: -12pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">2.</span></b><span style="font-family: Arial; font-size: 11pt;"> Check the operating time of the timer.</span></div></td> </tr> <tr style="height: 104.3pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid double double; border-width: medium 1pt 4.5pt 4.5pt; height: 104.3pt; padding: 0cm; width: 31.1pt;" width="41"> <div class="MsoNormal" style="direction: ltr; margin-left: 4.95pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;">5.</span></b></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid double none; border-width: medium 1pt 4.5pt medium; height: 104.3pt; padding: 0cm; width: 85.35pt;" width="114"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">230 kv gen. transf. BXR</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">incomplete transfer</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid double none; border-width: medium 1pt 4.5pt medium; height: 104.3pt; padding: 0cm; width: 84.25pt;" width="112"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">Maintenance</span></div><div class="MsoNormal" style="direction: ltr; margin: 0cm 22.65pt 0.0001pt 10.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">transfer</span></div><div class="MsoNormal" style="direction: ltr; margin: 0cm 22.65pt 0.0001pt 10.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">( MTS),</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">switch circuit.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid double none; border-width: medium 1pt 4.5pt medium; height: 104.3pt; padding: 0cm; width: 100.4pt;" width="134"> <div class="MsoNormal" style="direction: ltr; margin-left: 5.85pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">No change over operator, of MTS switch</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.85pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">to final "BUS TIE" position even when</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 5.85pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt;">the close of bus tie breaker is completed.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double double none; border-width: medium 4.5pt 4.5pt medium; height: 104.3pt; padding: 0cm; width: 124.8pt;" width="166"> <div class="MsoBodyTextIndent2"><span> </span><b>1.</b> Check the MTS switch position as "TRANSFER" and change over it to "BUS TIE" position to open the breaker being transferred.</div><div class="MsoBodyTextIndent2"><b><span> </span>2.</b> Check if any looseness in the MTS switch circuit by tester.</div><div class="MsoNormal" style="direction: ltr; margin-left: 18.6pt; text-align: left; text-indent: -17.5pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt;"><span> </span>3.</span></b><span style="font-family: Arial; font-size: 11pt;"> Check the MTS switch circuit by tester.</span></div></td> </tr> </tbody></table></div><h3 class="post-title entry-title" style="font-weight: normal; text-align: center;"><br /> </h3><h3 class="post-title entry-title" style="font-weight: normal; text-align: center;"><br /> </h3>

HIGH VOLTAGE CIRCUIT BREAKER PART 2

HIGH VOLTAGE CIRCUIT BREAKER PART 1 PNEUMATIC OPERATING DEVICE (KC – 1043)  No. Symptoms Cause Remedy 1. Magnetic valve fails to operate (1) Valve locked a…

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HIGH VOLTAGE CIRCUIT BREAKER

<div style="text-align: justify;">SUB - OBJECTIVE<br /> <br /> At the end of the lesson the Trainee will be able to analyze the high voltage circuit breakers faults find it out and fix it.</div><br /> <div style="text-align: center;"><span style="background-color: yellow; color: red; font-size: medium;">CIRCUIT BREAKER</span></div><div style="text-align: center;"><br /> </div><div style="text-align: center;"></div><div align="center"><table border="1" cellpadding="0" cellspacing="0" class="MsoNormalTable" style="border-collapse: collapse; border: medium none; margin-left: 1.5pt;"><tbody> <tr style="height: 34.3pt;"> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext; border-style: double solid solid double; border-width: 4.5pt 1pt 3pt 4.5pt; height: 34.3pt; padding: 0cm; width: 30.05pt;" width="40"><h4>No</h4></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double solid solid none; border-width: 4.5pt 1pt 3pt medium; height: 34.3pt; padding: 0cm; width: 78.7pt;" width="105"><div align="center" class="MsoNormal" style="direction: ltr; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; letter-spacing: 0.2pt;">Symptoms</span></b></div></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double solid solid none; border-width: 4.5pt 1pt 3pt medium; height: 34.3pt; padding: 0cm; width: 125.75pt;" width="168"><div align="center" class="MsoNormal" style="direction: ltr; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; letter-spacing: 0.2pt;">Cause</span></b></div></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double double solid none; border-width: 4.5pt 4.5pt 3pt medium; height: 34.3pt; padding: 0cm; width: 193.75pt;" width="258"><div align="center" class="MsoNormal" style="direction: ltr; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; letter-spacing: 0.2pt;">Remedy</span></b></div></td> </tr> <tr style="height: 33.3pt; page-break-inside: avoid;"> <td rowspan="2" style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid solid double; border-width: medium 1pt 1pt 4.5pt; height: 33.3pt; padding: 0cm; width: 30.05pt;" width="40"><div align="center" class="MsoNormal" style="direction: ltr; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">1.</span></b></div></td> <td rowspan="2" style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 33.3pt; padding: 0cm; width: 78.7pt;" width="105"><div class="MsoNormal" style="direction: ltr; margin-left: 8.7pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">Overheat of</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 11.35pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">Contact.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 33.3pt; padding: 0cm; width: 125.75pt;" width="168"><div class="MsoNormal" style="direction: ltr; margin-left: 0.45pt; text-align: left; text-indent: 5.85pt; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;"> <b>(I)</b> Poor contact.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 33.3pt; padding: 0cm; width: 193.75pt;" width="258"><div class="MsoNormal" style="direction: ltr; margin-left: 7.8pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">Replace wiper spring.</span></div></td> </tr> <tr style="height: 48.65pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 48.65pt; padding: 0cm; width: 125.75pt;" width="168"><div class="MsoNormal" style="direction: ltr; margin-left: 7.5pt; text-align: left; text-indent: 1.5pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">(2)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;"> Ingress of foreign substances to contact</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 24.3pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">surface or rough main contact.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 48.65pt; padding: 0cm; width: 193.75pt;" width="258"><div class="MsoNormal" style="direction: ltr; margin-left: 26.2pt; text-align: left; text-indent: -18.4pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">(a)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;"> Remove foreign substances.</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 26.2pt; text-align: left; text-indent: -18.4pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">(b)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;"> Polish contact surface (replace, if remarkably roughened).</span></div></td> </tr> <tr style="height: 31.7pt; page-break-inside: avoid;"> <td rowspan="7" style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid double double; border-width: medium 1pt 4.5pt 4.5pt; height: 31.7pt; padding: 0cm; width: 30.05pt;" width="40"><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">    2.</span></b></div></td> <td rowspan="7" style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid double none; border-width: medium 1pt 4.5pt medium; height: 31.7pt; padding: 0cm; width: 78.7pt;" width="105"><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;"> Failure in inter- Rupting      operation.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 31.7pt; padding: 0cm; width: 125.75pt;" width="168"><div class="MsoNormal" style="direction: ltr; margin-left: 24.3pt; text-align: left; text-indent: -16.4pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">(1)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;"> Broken wire or erroneous wiring of opening circuit.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 31.7pt; padding: 0cm; width: 193.75pt;" width="258"><div class="MsoNormal" style="direction: ltr; margin-left: 7.8pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">Recheck circuit</span></div></td> </tr> <tr style="height: 147.05pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 147.05pt; padding: 0cm; width: 125.75pt;" width="168"><div class="MsoNormal" style="direction: ltr; margin-left: 24.3pt; text-align: left; text-indent: -16.4pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">(2)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;"> Poor contact of auxiliary switch.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 147.05pt; padding: 0cm; width: 193.75pt;" width="258"><div class="MsoNormal" style="direction: ltr; margin-left: 7.8pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">(a)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;"> If auxiliary switch lever of    </span></div><div class="MsoNormal" style="direction: ltr; margin-left: 7.8pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">     ON/OFF</span></b></div><div class="MsoNormal" style="direction: ltr; margin-left: 31.9pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">shifting operation is found improper,</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 31.9pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">adjusting shifting.</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 7.8pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">(b)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;"> If auxiliary switch contact wipe is</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 31.9pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">poor, increase wipe or replace auxiliary switch.</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 27pt; text-align: left; text-indent: -19.2pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">(c)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;"> Should incomplete contact of auxiliary.</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 30pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">switch be caused by looseness of mounting bolts, retighten</span></div><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">          them.</span></div></td> </tr> <tr style="height: 31.5pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 31.5pt; padding: 0cm; width: 125.75pt;" width="168"><div class="MsoNormal" style="direction: ltr; margin-left: 24.3pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">(3)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;"> Broken wire of layer short of tripping coil.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 31.5pt; padding: 0cm; width: 193.75pt;" width="258"><div class="MsoNormal" style="direction: ltr; margin-left: 7.8pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">Replace coil.</span></div></td> </tr> <tr style="height: 33.05pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 33.05pt; padding: 0cm; width: 125.75pt;" width="168"><div class="MsoNormal" style="direction: ltr; margin-left: 24.3pt; text-align: left; text-indent: -16.4pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">(4)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;"> Breakage of link, on control system.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 33.05pt; padding: 0cm; width: 193.75pt;" width="258"><div class="MsoNormal" style="direction: ltr; margin-left: 7.8pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">Replace broken parts.</span></div></td> </tr> <tr style="height: 38.95pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 38.95pt; padding: 0cm; width: 125.75pt;" width="168"><div class="MsoNormal" style="direction: ltr; margin-left: 24.3pt; text-align: left; text-indent: -16.4pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">(5)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;"> Malfunction fo electromagnetic valve.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 38.95pt; padding: 0cm; width: 193.75pt;" width="258"><div class="MsoNormal" style="direction: ltr; margin-left: 7.8pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">Repair increased friction parts and defective parts or replace electro – magnetic valve. </span></div></td> </tr> <tr style="height: 38.95pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 38.95pt; padding: 0cm; width: 125.75pt;" width="168"><div class="MsoNormal" style="direction: ltr; margin-left: 24.3pt; text-align: left; text-indent: -16.4pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">(6)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;"> Operating air pressure drop.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 38.95pt; padding: 0cm; width: 193.75pt;" width="258"><div class="MsoNormal" style="direction: ltr; margin-left: 25.8pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">(a)<span style="font-family: "Times New Roman"; font-size-adjust: none; font-size: 7pt; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">   </span></span></b><span dir="LTR"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">Check setting pressure of reducing valve. </span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 25.8pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">(b)<span style="font-family: "Times New Roman"; font-size-adjust: none; font-size: 7pt; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">   </span></span></b><span dir="LTR"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">Check air supply source and air leak. </span></span></div></td> </tr> <tr style="height: 38.95pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid double none; border-width: medium 1pt 4.5pt medium; height: 38.95pt; padding: 0cm; width: 125.75pt;" width="168"><div class="MsoNormal" style="direction: ltr; margin-left: 7.9pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">(7)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;"> Gas pressure drop.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double double none; border-width: medium 4.5pt 4.5pt medium; height: 38.95pt; padding: 0cm; width: 193.75pt;" width="258"><div class="MsoNormal" style="direction: ltr; margin-left: 7.8pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.2pt;">Repair leak places and supply gas.</span></div></td> </tr> </tbody></table></div><br /> <div style="text-align: center;"><br /> </div><div style="text-align: center;"></div><div style="text-align: center;"></div><table border="1" cellpadding="0" cellspacing="0" class="MsoNormalTable" style="border-collapse: collapse; border: medium none; margin-left: auto; margin-right: auto; text-align: left;"><tbody> <tr style="height: 27.95pt;"> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext; border-style: double solid solid double; border-width: 4.5pt 1pt 3pt 4.5pt; height: 27.95pt; padding: 0cm; width: 25.75pt;" width="34"><h4>No</h4></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double solid solid none; border-width: 4.5pt 1pt 3pt medium; height: 27.95pt; padding: 0cm; width: 66.5pt;" width="89"><div align="center" class="MsoNormal" style="direction: ltr; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; letter-spacing: 0.2pt;">Symptoms</span></b></div></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double solid solid none; border-width: 4.5pt 1pt 3pt medium; height: 27.95pt; padding: 0cm; width: 197.25pt;" width="263"><div align="center" class="MsoNormal" style="direction: ltr; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; letter-spacing: 0.2pt;">Cause</span></b></div></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double double solid none; border-width: 4.5pt 4.5pt 3pt medium; height: 27.95pt; padding: 0cm; width: 144.75pt;" width="193"><div align="center" class="MsoNormal" style="direction: ltr; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; letter-spacing: 0.2pt;">Remedy</span></b></div></td> </tr> <tr style="height: 41.4pt; page-break-inside: avoid;"> <td rowspan="6" style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid solid double; border-width: medium 1pt 1pt 4.5pt; height: 41.4pt; padding: 0cm; width: 25.75pt;" width="34"><div align="center" class="MsoNormal" style="direction: ltr; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">3.</span></b></div></td> <td rowspan="6" style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 41.4pt; padding: 0cm; width: 66.5pt;" width="89"><div class="MsoNormal" style="direction: ltr; margin-left: 8.4pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Failure of closing</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 8.4pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">operation</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 41.4pt; padding: 0cm; width: 197.25pt;" width="263"><div class="MsoNormal" style="direction: ltr; margin-left: 30pt; text-align: left; text-indent: -26.45pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(1)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">    Broken wire or erroneous wiring of closing control circuit.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 41.4pt; padding: 0cm; width: 144.75pt;" width="193"><div class="MsoNormal" style="direction: ltr; margin-left: 18.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Recheck circuit</span></div></td> </tr> <tr style="height: 39pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 39pt; padding: 0cm; width: 197.25pt;" width="263"><div class="MsoNormal" style="direction: ltr; margin-left: 8.5pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(2)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">   Poor contact of Trip free  </span></div><div class="MsoNormal" style="direction: ltr; margin-left: 8.5pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">       </span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Contactor.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 39pt; padding: 0cm; width: 144.75pt;" width="193"><div class="MsoNormal" style="direction: ltr; margin-left: 18.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Replace contactor or repair rough contactsurface.</span></div></td> </tr> <tr style="height: 29.4pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 29.4pt; padding: 0cm; width: 197.25pt;" width="263"><div class="MsoNormal" style="direction: ltr; margin-left: 34.95pt; text-align: left; text-indent: -26.45pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(3)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">   Broken wire or layer short of  coil.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 29.4pt; padding: 0cm; width: 144.75pt;" width="193"><div class="MsoNormal" style="direction: ltr; margin-left: 18.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Replace coil.</span></div></td> </tr> <tr style="height: 42.6pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 42.6pt; padding: 0cm; width: 197.25pt;" width="263"><div class="MsoNormal" style="direction: ltr; margin-left: 8.5pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(4)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">   Malfunction of hook.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 42.6pt; padding: 0cm; width: 144.75pt;" width="193"><div class="MsoNormal" style="direction: ltr; margin-left: 18.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Eliminate increased friction and replace defective parts.</span></div></td> </tr> <tr style="height: 21.3pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 21.3pt; padding: 0cm; width: 197.25pt;" width="263"><div class="MsoNormal" style="direction: ltr; margin-left: 8.5pt; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(5)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">   Breakage of closing spring.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 21.3pt; padding: 0cm; width: 144.75pt;" width="193"><div class="MsoNormal" style="direction: ltr; margin-left: 18.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Replace spring</span></div></td> </tr> <tr style="height: 33.3pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 33.3pt; padding: 0cm; width: 197.25pt;" width="263"><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">  (6)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">   Gas pressure drop.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 33.3pt; padding: 0cm; width: 144.75pt;" width="193"><div class="MsoNormal" style="direction: ltr; margin-left: 18.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Supply gas and repair leak places.</span></div></td> </tr> <tr style="height: 92.1pt;"> <td style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid solid double; border-width: medium 1pt 1pt 4.5pt; height: 92.1pt; padding: 0cm; width: 25.75pt;" width="34"><div align="center" class="MsoNormal" style="direction: ltr; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 2.2pt;">4.</span></b></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1pt 1pt medium; height: 92.1pt; padding: 0cm; width: 66.5pt;" width="89"><div class="MsoNormal" style="direction: ltr; margin-left: 12.2pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Pumping operation</span></div><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><br /> </div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 92.1pt; padding: 0cm; width: 197.25pt;" width="263"><div class="MsoNormal" style="direction: ltr; margin-left: 25.95pt; text-align: left; text-indent: -19.95pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(1)<span style="font-family: "Times New Roman"; font-size-adjust: none; font-size: 7pt; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;">  </span></span></b><span dir="LTR"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Erroneous operation of.trip free contactor or poor contact of auxiliary switch (for trip free contactor).</span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 24pt; text-align: left; text-indent: -18pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(2)<span style="font-family: "Times New Roman"; font-size-adjust: none; font-size: 7pt; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; line-height: normal;"> </span></span></b><span dir="LTR"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Defective arrangement of hook and roller on closing link mechanism.</span></span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 92.1pt; padding: 0cm; width: 144.75pt;" width="193"><div class="MsoNormal" style="direction: ltr; margin-left: 18.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Check trip free contactor.</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 18.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Check and repair link mechanism.</span></div></td> </tr> <tr style="height: 34.15pt; page-break-inside: avoid;"> <td rowspan="5" style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid double double; border-width: medium 1.1pt 4.5pt 4.5pt; height: 34.15pt; padding: 0cm; width: 25.75pt;" width="34"><div align="center" class="MsoNormal" style="direction: ltr; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">5.</span></b></div></td> <td rowspan="5" style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid double none; border-width: medium 1.1pt 4.5pt medium; height: 34.15pt; padding: 0cm; width: 66.5pt;" width="89"><div class="MsoNormal" style="direction: ltr; margin-left: 4.3pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Gas leakage</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 34.15pt; padding: 0cm; width: 197.25pt;" width="263"><div class="MsoNormal" style="direction: ltr; margin-left: 24pt; text-align: left; text-indent: -23.8pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> (1)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> Incomplete insertion of packing into groove or hole on seal, or damaged gasket.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 34.15pt; padding: 0cm; width: 144.75pt;" width="193"><div class="MsoNormal" style="direction: ltr; margin-left: 18.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Reweld seal part gasket.</span></div></td> </tr> <tr style="height: 41.95pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 41.95pt; padding: 0cm; width: 197.25pt;" width="263"><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> (2)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">  Defective welding or defective              </span></div><div class="MsoNormal" style="direction: ltr; margin-left: 24pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">material.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 41.95pt; padding: 0cm; width: 144.75pt;" width="193"><div class="MsoNormal" style="direction: ltr; margin-left: 18.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Reweld or replace parts.</span></div></td> </tr> <tr style="height: 45.35pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 45.35pt; padding: 0cm; width: 197.25pt;" width="263"><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> <b>(3)</b>  Loose joints.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 45.35pt; padding: 0cm; width: 144.75pt;" width="193"><div class="MsoNormal" style="direction: ltr; margin-left: 18.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Check fastenings.</span></div></td> </tr> <tr style="height: 50.45pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 50.45pt; padding: 0cm; width: 197.25pt;" width="263"><div class="MsoNormal" style="direction: ltr; margin: 0cm 5.25pt 0.0001pt 25.95pt; text-align: left; text-indent: -25.95pt; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> <b>(4)</b>  Mulfunction of gas density detector.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 50.45pt; padding: 0cm; width: 144.75pt;" width="193"><div class="MsoNormal" style="direction: ltr; margin-left: 18.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Readjust or replace gas density detector.</span></div></td> </tr> <tr style="height: 179.7pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid double none; border-width: medium 1.1pt 4.5pt medium; height: 179.7pt; padding: 0cm; width: 197.25pt;" width="263"><div class="MsoNormal" style="direction: ltr; margin-left: 25.95pt; text-align: left; text-indent: -25.95pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> (5)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> When gas density detector issues heavy fault alarm due   to broken gas piping etc.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double double none; border-width: medium 4.5pt 4.5pt medium; height: 179.7pt; padding: 0cm; width: 144.75pt;" width="193"><div class="MsoBodyText" style="margin: 0cm 10.7pt 0.0001pt 18.75pt;"><span style="letter-spacing: 0.4pt;">Turn off the backup circuit breaker immediately, and also turn off the disconnecting switch from both ends of circuit breaker to be separate from the circuit.<span dir="RTL" lang="AR-SA"></span></span></div><div class="MsoNormal" style="direction: ltr; margin-left: 18.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">contact with the nearest sale office of Hitachi Ltd. or Kokubu Works directly</span></div></td> </tr> </tbody> </table><div style="text-align: center;"></div><div style="text-align: center;"></div><div style="text-align: center;"></div><div style="text-align: center;">  </div><div></div><table border="1" cellpadding="0" cellspacing="0" class="MsoNormalTable" style="border-collapse: collapse; border: medium none; margin-left: auto; margin-right: auto; text-align: left;"><tbody> <tr style="height: 30.85pt;"> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext; border-style: double solid solid double; border-width: 4.5pt 1pt 3pt 4.5pt; height: 30.85pt; padding: 0cm; width: 24.15pt;" width="32"><h4>No</h4></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double solid solid none; border-width: 4.5pt 1pt 3pt medium; height: 30.85pt; padding: 0cm; width: 70.05pt;" width="93"><div align="center" class="MsoNormal" style="direction: ltr; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; letter-spacing: 0.2pt;">Symptoms</span></b></div></td> <td colspan="2" style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double solid solid none; border-width: 4.5pt 1pt 3pt medium; height: 30.85pt; padding: 0cm; width: 227.8pt;" width="304"><div align="center" class="MsoNormal" style="direction: ltr; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; letter-spacing: 0.2pt;">Cause</span></b></div></td> <td style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(217, 217, 217) none repeat scroll 0% 0%; border-color: windowtext windowtext windowtext -moz-use-text-color; border-style: double double solid none; border-width: 4.5pt 4.5pt 3pt medium; height: 30.85pt; padding: 0cm; width: 114pt;" width="152"><div align="center" class="MsoNormal" style="direction: ltr; text-align: center; unicode-bidi: embed;"><b><span style="font-family: Arial; letter-spacing: 0.2pt;">Remedy</span></b></div></td> </tr> <tr style="height: 62.2pt; page-break-inside: avoid;"> <td rowspan="7" style="border-color: -moz-use-text-color windowtext windowtext; border-style: none solid double double; border-width: medium 1.1pt 4.5pt 4.5pt; height: 62.2pt; padding: 0cm; width: 24.15pt;" width="32"><div align="center" class="MsoNormal" style="direction: ltr; margin-left: 19.95pt; text-align: center; text-indent: -19.95pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">6.</span></b></div></td> <td rowspan="7" style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid double none; border-width: medium 1.1pt 4.5pt medium; height: 62.2pt; padding: 0cm; width: 70.05pt;" width="93"><div class="MsoNormal" style="direction: ltr; margin-left: 4.3pt; text-align: justify; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Air leakage</span></b></div></td> <td rowspan="3" style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 62.2pt; padding: 0cm; width: 120.85pt;" width="161"><div class="MsoNormal" style="direction: ltr; text-align: justify; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> (1)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Electromagnetic</span></div><div class="MsoNormal" style="direction: ltr; margin-left: 29.8pt; text-align: justify; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">valve</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 62.2pt; padding: 0cm; width: 106.95pt;" width="143"><div class="MsoNormal" style="direction: ltr; margin-left: 18pt; text-align: left; text-indent: -15.5pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(a)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> Damaged valve   gasket due to ingress of  foreign substances.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 62.2pt; padding: 0cm; width: 114pt;" width="152"><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(a)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> Replace valve   </span></div><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">     packing.</span></div><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(b) </span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Eliminate foreign   </span></div><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">     substances.</span></div></td> </tr> <tr style="height: 59.8pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 59.8pt; padding: 0cm; width: 106.95pt;" width="143"><div class="MsoNormal" style="direction: ltr; margin-left: 22.85pt; text-align: justify; text-indent: -18pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(b)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> Damaged valve seat</span></div><div align="center" class="MsoNormal" style="direction: ltr; margin-left: 27pt; text-align: center; text-indent: -3pt; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">due to ingress of foreign substances.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 59.8pt; padding: 0cm; width: 114pt;" width="152"><div class="MsoNormal" style="direction: ltr; margin-left: 10.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Replace valve body.</span></div></td> </tr> <tr style="height: 42.45pt; page-break-inside: avoid;"> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 42.45pt; padding: 0cm; width: 106.95pt;" width="143"><div align="center" class="MsoNormal" style="direction: ltr; margin-left: 27.75pt; text-align: center; text-indent: -27.75pt; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">(c)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> Broken electro-magnetic valve lever.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 42.45pt; padding: 0cm; width: 114pt;" width="152"><div class="MsoNormal" style="direction: ltr; margin-left: 10.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Replace lever.</span></div></td> </tr> <tr style="height: 29.7pt; page-break-inside: avoid;"> <td colspan="2" style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 29.7pt; padding: 0cm; width: 227.8pt;" width="304"><div class="MsoNormal" style="direction: ltr; text-align: justify; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> (2)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> Main valve Same as (a) and (b) above. </span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 29.7pt; padding: 0cm; width: 114pt;" width="152"><div class="MsoNormal" style="direction: ltr; margin-left: 10.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Same as <b>(a)</b> and <b>(b)</b> above.</span></div></td> </tr> <tr style="height: 27.9pt; page-break-inside: avoid;"> <td colspan="2" style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 27.9pt; padding: 0cm; width: 227.8pt;" width="304"><div class="MsoNormal" style="direction: ltr; text-align: justify; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> (3)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> Air leakage from piping sysem.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 27.9pt; padding: 0cm; width: 114pt;" width="152"><div class="MsoNormal" style="direction: ltr; margin-left: 10.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Check fastenings for looseness.</span></div></td> </tr> <tr style="height: 42.45pt; page-break-inside: avoid;"> <td colspan="2" style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid solid none; border-width: medium 1.1pt 1pt medium; height: 42.45pt; padding: 0cm; width: 227.8pt;" width="304"><div class="MsoNormal" style="direction: ltr; text-align: left; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> (4)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> Increase of air leakage from airing  </span></div><div class="MsoNormal" style="direction: ltr; margin-left: 24.15pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">valve.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double solid none; border-width: medium 4.5pt 1pt medium; height: 42.45pt; padding: 0cm; width: 114pt;" width="152"><div class="MsoNormal" style="direction: ltr; margin-left: 10.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Measure discharge of airing valve,and if the measured valve does not complete with the specified value, replace it.</span></div></td> </tr> <tr style="height: 33.85pt; page-break-inside: avoid;"> <td colspan="2" style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none solid double none; border-width: medium 1.1pt 4.5pt medium; height: 33.85pt; padding: 0cm; width: 227.8pt;" width="304"><div class="MsoNormal" style="direction: ltr; text-align: justify; unicode-bidi: embed;"><b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> (5)</span></b><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;"> Others.</span></div></td> <td style="border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; border-style: none double double none; border-width: medium 4.5pt 4.5pt medium; height: 33.85pt; padding: 0cm; width: 114pt;" width="152"><div class="MsoNormal" style="direction: ltr; margin-left: 10.75pt; text-align: left; unicode-bidi: embed;"><span style="font-family: Arial; font-size: 11pt; letter-spacing: 0.4pt;">Check gaskets and fastening at joints.</span></div></td> </tr> </tbody></table><div style="text-align: center;"></div><div style="text-align: center;">   </div>  <br /> <h3 class="post-title entry-title"><a href="http://hayatei.blogspot.com/2010/12/high-voltage-circuit-breaker-part-2.html">HIGH VOLTAGE CIRCUIT BREAKER PART 2</a></h3>

HIGH VOLTAGE CIRCUIT BREAKER

SUB - OBJECTIVE At the end of the lesson the Trainee will be able to analyze the high voltage circuit breakers faults find it out and fix it. CIRCUIT BREAKER No Symptoms Cause Remedy 1. …

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