Answer / gopal manda

the principle of excitation is that,it is same as low
voltage dc generator,to generate high voltage,we need very
strength static magnetic field,which we creat by external
dc voltage, produce by ac or dc generator.so we excite the
fieldwinding of alternator.

A electrical meter has load 500 kw. In 2 hr what rading will come on meter.

2 Answers  

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why transformer cannot rotate though the princplebehind induction motor is similar to a transformer?

2 Answers   GE,

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Explain difference between stand by earth fault and residual earth fault protection?

0 Answers  

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what is the diffference between 3 point and 4 point starter ?

3 Answers  

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Why Capacitor & ignator used in MH lamp

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Is 3 phase induction motor can work as a generator?? if so why & how??

2 Answers   Jindal,

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As per which Indian Standard induction motors are manufactured?

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difference between ground,neutral and earth?..

4 Answers  

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