Answer / loganath

Winding differential protection, thermal overload, negative
sequence(unbalance), locked rotor, excess long start,
Instantaneous over current, earth fault, bearing,stator
winding temperature monitor

Answer / gowtham

High precision current transformer is used to trip the circuit breaker.for low rating motors current transformer is not required to trip the circuit breaker.

What is skin effect?

2 Answers  

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What is thresh hold value of current?

0 Answers  

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AVR

2 Answers  

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what are the sample questions asking to the test cunducting for electrical superwising lisence test?

0 Answers   APTransco,

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What is the pro & con of having 11kv & 33kv incoming, and what is the adv & disadv. of converting from 11kv to 33kv.

0 Answers  

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Please help me.What are the difference between two wire, 3wire, and 4 wire in electric meter?

3 Answers  

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How to calculate wire length,size & current? ( related to control panel)

0 Answers   FSS, GK Controls, Panel Tech,

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Difference between ups

32 Answers   Emerson, Tata Power,

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how the rotating magnetic fieldis produced in induction machines??? give the correct explanation.is there any mathematical expression for the same?

1 Answers  

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In my 3 phase 4 wire electrical system N to earth voltage is 0.08 is it ok What is standard for it ?

1 Answers   Kay Bee,

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Why OLTC(On Load Tap Changing)transformer is not recomended for improving voltage instability?

2 Answers  

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Why Phase to Neutral get spark

2 Answers  

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