Answer / sibananda jena

For starting the engine, and for excitation voltage for the
alternator.

Answer / abhishek

main alternator excitation voltage supplied after rectifying
another small alternator voltage. This small alternator excitor
voltage is supplied by battery.

What is fuction of NGT/NGR using in Generator.

9 Answers  

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what will be happen if we apply D.C supply to the transformer

14 Answers   CCBPL,

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what happens if commutator is removed in an dc machine?

3 Answers  

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what is meant by Ac & DC drives where its useful ? how its functioning ?

3 Answers  

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Difference between EDO and MDO breakers?

10 Answers   ACB,

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what is the different between RCCB & ELCB

3 Answers  

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how is working bearing heater?

0 Answers   ONGC,

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who invented active elements? plz give me the complte details of active elements...

0 Answers  

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Can we use 3 phase energy meter for measureing power in 2 phase 440 V phase circuit?

2 Answers  

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what is looping circuit in electrical lighting circuits?

5 Answers   L&T,

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what is the thumb rule or formula for cable size and current ratings

1 Answers  

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When both contractor star & delta is hold in star delta motor ?? So what happen in this case ??

1 Answers  

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