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How to test lightning Arrester?

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More Electrical Engineering Interview Questions

1kva=how many kw & amps

We use ACB in LT and VCB in HT.But if we use VCB in LT and ACB in HT that what will be the effect on the system or any power range?

Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?

how many joint can done in HT line and what is life of the joint

Why we are testing cables with dc?

what is a bus post insulator? explain its application in a substation.

How much allowable difference current between on three phases Dear sir, We have a 1870 KW HT motor, 11 Kv supply,FLA-120A,2870 rpm,2-pole squirrel cage induction Motor.And stator is connected in star connection with Liquid resistance stater to limit the starting current.It has coupled with Centrifugal air compressor.My question is it is loading 73% of FLA taking R-phase 86.7 A, Y-phase-85.4A,B-phase- 78.3A.why the B phase current is that much of difference.Is it allowable, or any one tell me how much allowable current.If any method to calculate.

What is Negative Potential Bias

which type of A.C motor is used in the fan (ceiling fan, exhaust fan, padestal fan, bracket fan etc) which are find in the houses ?

why phase to phase voltage is 400v while phase to neutral is 220v?

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What is the function of electron gun used in crt?

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