how can we change the polarity of Alternating current rapidly? how frequency of ac can be controlled and changed easily?

0 Answers  

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how can synchronous generator can be used as synchronous condenser?

3 Answers   Monnet,

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can we use ACB for HT supply

2 Answers   Reliance,

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What are the function of different components of servo motor?

0 Answers   BARC, Parle,

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Why need 3phase machine double earthing?

0 Answers  

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why the generating / transmitting voltage is in the order of multiples of 11(ie 11kv,22kv,33kv......)

1 Answers  

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Which is stiffer between salient pole rotor and cylindrical rotor synchronous machines? Justify your answer.

1 Answers  

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what is the difference between ac and electric

1 Answers  

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Is there any difference of regulation of transformer, alternator , transmission line, if yes, what is it?

1 Answers  

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What is the AVR in DG & its functios

2 Answers   Godrej,

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who & how the notations given as RYB to 3phase power supply.

1 Answers  

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What is relation between mu(nought) and epsilon(nought)?

0 Answers  

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