Answer Posted / sanjay kumar
the reason why ac is not given to the excitation of field
of alternator lies behind the concept of mutual
induction.if ac field'll be given again the problem starts
when field current will rise and leads to deexcite
itself.hence it will not give uniform excitation like dc
current.
| Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
what is model question rrb junior engineer electrical gr.II
What is the difference between electrical earthing and electrical grounding?
how could we calculate the no of outgoings from a 800 watt distribution board
what is load vs Torque curve & why it is used?
What is speed mode?
how we select ac fuse rating of an power inverter???
What is meant by vector group
Dear sir, I have completed DECE in the year 1995. I have work experience in HT and LT LINE more than five years. Now i am doing BE in EEE from rajasthan university. After completion of BE,can i apply "C" Licence sir? Please reply.
What is line resistance of cable & how it can be measured ?
How many sprinklers should be in one pipe line?
How much depth n width required for laying of 1X70 Sqmm Cable in Desert???
List few applications of d.c series motor?
How DC earth leakage currents can be reduced ?
can any one tell me about the Extra low voltage systems?From where we give supply to these type of systems??
How to protect sensitive loads such as Dosing pumps inside a factory from voltage surge/voltage fluctuation.