Why dc voltage used to excite alternator field in stead of ac?

4 Answers  

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WHATS THE DIFFERENCE IN USING THE 125% AND THE 250% FACTOR OF SAFETY IN CALCULATING CIRCUIT BREAKERS CAPACITY IN MOTOR APPLICATION??

0 Answers  

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draw a dol with the following rtds,stop/start,ct,vt and o/l supply is 6.6kv and the coil is 110v

1 Answers   Anglo Eastern,

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What is electrical cable termination

0 Answers   Gulf,

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different between electrical and electronics Engineering????

4 Answers  

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What difference between MCB,MCCB,RCCB,ELCB please explain briefly with its rating.

3 Answers  

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what is a pf factor in generator.

3 Answers   CSEB,

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Myself completed B.Tech ECE in private university but i am working as an testing and commissioning engineer in electrical field whether i am eligibility to apply electrical licence.

1 Answers  

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Difference between directional over current and non directional over current ?

2 Answers  

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PAC and simple Ac different

0 Answers  

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what's the different between ELCB, ELR and ELS?

1 Answers   CP,

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differance b|w ground, neutral&earth

11 Answers   Bhel, SKH Metals,

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