why transmission is only 3 phase and not 2 or 4 or poly phases

0 Answers   Infosys,

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what is AB switch???

6 Answers   NTPC, Simplex,

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I have 1 KW, 3ph. 440v, 50 hz, cos(phi) .75, efficiency 75%(star delta connection)Motor. How to calculate line current & Phase current (1) Star connection (2) delta Connection

2 Answers  

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what is use of starter motor in DG ?

2 Answers  

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in short circuit. test of a transformer 5 to 10% ofvrated voltage is used why??? if we use rated voltafe then what will be?

1 Answers  

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What is mean by PID controller? And what is its Long form?

9 Answers   Jindal,

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How Can Be Size Of Transformer Corelate With Freqvence?

1 Answers   Essar,

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explain how hunting can be reduced in an alternators?

3 Answers  

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Is it required to lay GI wires along with GI/MS conduits from one point to another point though separate earthing cable is conncted from DB to Socket?

0 Answers  

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without any excitation we can strt any dc or ac moter?

6 Answers   Bhel,

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what is the difference b/w permitivity and permeability

1 Answers  

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what are the affects of loose connection in electrical circuit.

14 Answers   HP,

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