Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

2258

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Differenciate between circuit wiring and sub main wiring with illustrations

2183

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how to design coil turns ?

1920

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how to calculate magnetic force genrated by a coil ?

2154

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How to Decide(calculate) Bush bar size for copper and aluminiam ?

2074

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why all the feeders are designed in a particular manner ... is there any reason for that???

1907

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difference between power surge and switching transient

2027

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What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage

6085

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How LT megger works ?

2082

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whate is the meaning of balance/unbalance,in stabilizers type

2096

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how the works electronic energy meter?

2113

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WHAT IS SHORT CIRCUIT STRENGTH OF 100 AMPS MCCB?

2060

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How to select the earthing transformer,for DELTA TO DELTA TRANSFORMER OR ALTERNATOR SIDE.Pls post your answers and calculation.

2324

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Why Transformer Neutral having one earth pit ( more earth electrode resistance) whereas body have many earth pit ( less earth electrode resistance)?

4262

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i want to know about torque of slip ring induction motor

2083

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