in 220/132 substation in place of PT what equipment used & what r the role of that equipment

2 Answers  

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what is the function of rccb how it diffrentiate between elcb

1 Answers  

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Why a ballast and ignitor is required in MH and other lighting fixtures

2 Answers   Future Group,

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

0 Answers   Indeco,

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what is transformer?

4 Answers   Mphasis,

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How does the phase sequence controller works, how it identifies the phases? confirm working principle

0 Answers  

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why should small green grass ans small plant should not be there inside the transformer Yard in the factories

0 Answers   Riddhi Siddhi,

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what types of load we get from the national grid? is this capacitive or inductive?

1 Answers  

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I want to ask that is there any relation between current denesity of copper and material purity. also is ther any standard which defines the standard current denesity of material.

0 Answers  

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IF 3 NOS.OF HEATERS,3KW CAPACITY EACH,1 NO.HEATER CONNECTED IN R PHASE,1 IN Y PHASE AND 1 IN B PHASE.THEIR END POINTS CONNECTED IN STAR.IF I CONNECT THIS STAR POINT TO NEUTRAL OR DO NOT CONNECT TO NEUTRAL.WHAT WILL THE DIFFERENCE.

3 Answers  

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can any one help me for my ups inter view , list out few basic technical ups question with answer.

1 Answers  

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Why do we use series motor to start our car?

2 Answers  

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