Answer / nandakumarp

normally used 110v dc for tripping and closing coils

Answer / liladhardanej11

depend upon as per control supply i think normally used 110v & 127v ac

what is function of capacitor in ceiling fan?

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I have a 600VA UPS for computer only. It holds for 20minutes only. 1. Can it be upgraded for longer period.? 2. Can it be used for one ceiling fan and a tube light? If yes, how to upgrade?

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why 30 ma elcb is used ?why cant 100 ma?

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please explain me about traction application?

2 Answers  

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why is the vector group analysis done in transformer tests

28 Answers   K K Rao, Lloyds, Nicco Engineering Services Limited, Qatar Petroleums,

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How to Calculate the Fault Level of Electrical Installation

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how to calculate busbar size? ex:11000kva main what is the busbar size ?and how to select the correct one

4 Answers  

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