What is the main difference b/t Earth leakage relay & Earth fault relay.I want protect my LT panel(Distribution Panels)which relay have to propose.......

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DC transmission

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how to Select its CORE in electrical cables based on its applications? or Application of various types of electrical cable based on it CORE?

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If a current -8+6sin6t is flowing three ammeter, one is a centre zero PMMC meter, one is true rms meter and one is moving iron meter. What are the reading of these three meter respectively?

0 Answers   National Insurance Company Limited,

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WHY TRANSFORMER RATING IS MENTIONED IN KVA RATHER THAN KW

5 Answers  

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how to extend relay operating timing in 24V dc relay card (without using Timer )

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how r charge carriers produced

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Which colour of earthing wire

1 Answers   Aravali,

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what is diff kav & kvarh?

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What are the advantages of stationary armature and rotating field system?

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how we can improve P.F. by using capacitors ?

22 Answers  

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how we calculate the dick for a pole?

0 Answers   Power Grid,

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