Answer / pswin

You ask the value between L,N and E. So I will assume that you will test for single phase and the test voltage must be 500 v scale and full scale is 100 mega ohm.Minimum value should be 0.5 mega ohm between each conductors. If lower than that value, the cable or wire is not certified to use. For three phase, above answer is acceptable,too.

circuit breaker work alone during fault condition or need any relays ?

4 Answers  

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A 2083kva AVR was tested, phase to ground shows continuity, what is the implications

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how we can varying the speed of dc motor ?

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resitance in ac=1.6*resistance in dc

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hopkinson's test

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During regenerative breaking= A rotating magnetic field is reversed B slip is positive C torque is positive D slip is negative

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