what is differnce between grounding and earthing or both are same?

3 Answers  

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why occ characteristics of generator is also called as magnatization characteristics

1 Answers  

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what is the reactance,capacitance & impedence electrical armoured & unarmored Cables.

0 Answers  

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what is the function of cooling tubes in transformer

4 Answers  

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one cable insulation resistance 200 mega ohm. how find 250 meter cable resistance.

2 Answers   NTPC,

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Define gain margin?

0 Answers  

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Two CTs 1600/1 and 35/1 are in series. while checking the ratio test of a CT(1600/1),same 1600A will also pass through the CT having ratio 35/1. Will it be harmfull to the ct(35/1),if yes , what will happen.CT secondary is shorted

3 Answers  

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Why earthing transformer used in Distribution Sub-Station?

3 Answers  

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why the rating of a transformer in kva not in kw.

9 Answers  

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What is difference between isolator and circuit breaker?

0 Answers  

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Calculate torque developed by the 3-phase, 5 H.P., 4 pole induction motor runs at 1500 rpm A 23 N-m B 21 N-m C 10 N-m D 0 N-m

0 Answers  

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how copper and aluminium wires or cables are choose for current rating? please provide copper and aluminium wire selection chart for different current rating ?

0 Answers  

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