Answer / ram

1. switch on the elcb. press the test button on the elcb.
it should trip.
2. switch on the elcb. connect test lamp between earth and
output phase of the elcb. the elcb should trip.
if fails in both the condition the elcb is faulty.

Why the airgap of an induction motor is less compared to that of a synchronous machine?

4 Answers   MGVCL, RRB, WebTech,

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I am working in 600MW power plant currently in erection phase. I came along this term and want to know its meaning in simple language, consider me naive!?? All motors shall be of energy efficient type EFF-2 as per IS:12615/ equivalent IEC / International Standard.

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difference between brush less & brush excitation in a generator?

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what is proper capacitor placement? How to evaluate capacitor size?

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WHY POLARITY TEST OF CT IS VERY IMPORTANT IN SWITCHGEAR

3 Answers   Birla, Reliance,

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