This post is the third part of


 The second part 

Measurement Of Insulation Resistance


 Insulation Resistance Value Required For Operation

In general, it is difficult to give a minimum of permis¬sible insulation resistance value for starting since it varies with the type, rating and size of the motor. However, as a simple standard for daily maintenance, the following equation may be considered for the minimum value.

Rm = E + 1


Rm : recommended minimum insulation resistance at 40ºC of the machine winding, in MΩ

E : Motor rated voltage, in KV

When applying the Rm as given by above equation, the temperature correction of measured insulation resistance should be made by use of the following equation if the winding is not at a temperature of 40ºC.

Rc ; insulation resistance corrected to 40ºC, in MΩ
Rt . measured insulation resistance at a temp. t ,in MΩ
A¬0 : insulation resistance correction factor

(See Fig. 1-2 Temperature Correction Curve)

Fig.1.2-a Temperature correction curve

معلومات عن التدوينة 21 فبراير 2014 عدد الزيارات: (850) عدد التعليقات: 2 الكاتب:iHussam للإبلاغ عن رابط معطوب اضغط هنا للإبلاغ عن رابط معطوب اضغط هنا جميع الحقوق محفوظة ( إتفاقية نقل ونشر المحتوى )

Post a Comment

  1. You really make it seem so easy with your presentation but I find this topic to be actually something which I think I would never understand.
    It seems too complicated and extremely broad for me. I'm looking forward for your next post, I will try to get the hang of it!
    Also see my web page - teen porn

  2. Thank you for some other great article. The place else
    may just anyone get that kind of information in such a
    perfect manner of writing? I've a presentation subsequent week, and I am at the look for such information.
    My web page :: teenporn

  3. I am regular reader, how are you everybody? This article posted at this website
    is really nice.
    Also see my page > Teens Free Porn

  4. Keep on writing, great job!
    Stop by my weblog : lanautica

  5. Aw, this was a very good post. Taking the time and
    actual effort to generate a really good article… but what
    can I say… I procrastinate a whole lot and don't seem to get anything done.
    Also visit my site :: neucopia

  6. This is really attention-grabbing, You are an excessively skilled blogger.
    I've joined your rss feed and sit up for in search of more of your excellent post. Additionally, I have shared your web site in my social networks
    Here is my website ... Upper James Manor

  7. Hello, i believe that i saw you visited my website so i got here to return the want?

    .I'm attempting to find things to enhance my site!I guess its ok to make use of a few of your ideas!!
    My web site :: Smith Mountain Lake Vacation Home Rentals

  8. Highly energetic blog, I liked that a lot. Will there
    be a part 2?
    Also visit my blog :: free cruises

  9. I constantly spent my half an hour to read this weblog's posts everyday along with a mug of coffee.

    Feel free to surf to my webpage: Best Diet Plan

  10. Hellο there! I coulԁ have sworn I've visited this web site before but after going through a few of the posts I realized it'ѕ
    neω to me. Anyhoω, I'm definitely delighted I came across it and I'll be bookmarκing іt and
    checking bаck οften!

    my web sіte :: Georg Ohm

  11. Great aгticlе! We will be linking to this ρагticularly grеat post on our website.

    Keеp up the gooԁ writing.

    Alѕo ѵіѕit my blog poѕt .

    .. Http://Ppfog.Com/

  12. Hi, I chесk youг nеω stuff
    regularly. Yοur writing ѕtуlе iѕ wіtty, κeep it uρ!

    Here iѕ my blog georg ohm