Operate Alternators, Generators. Test 18
Operate Alternators, Generators. Test 18
When synchronising a generator what does clockwise movement of the synchronising dial indicate?
How would you test the insulation on an AC motor?
What is the purpose of thermistors fitted to motor windings?
A six pole 50Hz three phase induction motor has a full load at 950 rpm. What will the speed of the motor be at half load?
When would you undertake resistance tests on an AC motor?
A motor controlled by thyristors is to be tested. What precautions would you take ?
Two generators are running in parallel. Generator one is delivering 300 Amps more than the second generator. What is the best course of action ?
Which area of the DC generator requires the most maintenance?
Why are alternator poles fabricated in laminated form?
Sparking and grooving of the commutator in a DC motor may be caused by _____
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