All motors have a similar basic construction. Each has two main parts:
1. The stator.
2. The rotor.
The stator is normally mounted on the frame. This frame is usually cylindrical in shape. The field poles with field windings on them are part of the stator. The identification plate is also mounted on the stator. The frame has end bells or plates attached to it. These hold the bearings. When the rotor shaft journals are mounted in the bearings, the bells support the rotor.
The rotor is mounted on a shaft, which has two journal bearings, one at each end. The bearings are accurately machined to provide the proper amount of endplay for the rotor. There is a clearance of .001 to .002 between the motor shaft and the bearing
The windings are insulated copper wire. This insulation is usually a polyester material. It is resistant to moisture and has considerable dielectric and mechanical strength.
Both alternating current (AC) and direct current (DC) may be used to operate electric motors. Following motor types are most commonly used: -
AC - Single phase
Split phase induction.
Capacitor-start induction.
Capacitor-start, capacitor run.
Shaded pole.
Universal.
Repulsion.
AC - Three phase
Squirrel cage induction
Wound rotor induction
Synchronous
DC - Series
Shunt
Compound
Today, the capacitor motor is being used on most household applications. It is the most popular single-phase machine.
Subscribe to:
Post Comments (Atom)
Hi there, You have done an incredible job. I'll certainly digg it and personally suggest to my friends. I am confident they'll be benefited from this web site.
ReplyDeleteHere is my web site :: safe diets
Also see my website: diets that Work
This design is wicked! You certainly know how to keep a reader
ReplyDeleteentertained. Between your wit and your videos, I
was almost moved to start my own blog (well, almost...HaHa!
) Great job. I really loved what you had to say, and more than
that, how you presented it. Too cool!
Here is my blog :: Play Batman Games