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
A 10 MVA, 66KV, 50Hz, Y-connected 3-phase alternator has synchronous reactance of 0.635 Ù. It is working at full load at 0.8 lagging p.f. condition. Find torque angle, neglect armature resistance.
some basic standard questions on transformer.
1.Z transform always lies around ? a) origin b) pole c) zero d) z=1. Multiples Mcqs which is bother me can’t find answers on internet. Some help required with little explanation . Note: this is not homework or related to any test. Thanks
What is the comparison between 30mA DP RCCB and 100mA DP RCCB and can replace it against 63A MCB
How the PF control while running DG set with load
WE ARE PLACE A NEW 75 KW MOTOR FOR JPF.IT IS CONNECTED IN M.C.C. WHEN WE ARE STARTING M.C.C.INCOMER IS TRIPPED.THEN WE ARE CONNECTED IN P.C.C WITH A MM30 RELAY PROTECTION THEN WE ARE STARTED MOTOR WILL RUN SMOOTHLY.
Formulae for calculating the transmission line losses for different voltage levels
Explain how you intend to work under pressure to meet up with deadline target?
What is MSL designation of a motor and same may be provided in details.
i wasted one year for the job after completed my btech what can i say about 1year time in interview
While testing LA mast,What are the parameter limits ?
what is the need to express current and voltage in rms value? rms value is also called as effective value,what is effective value?
what is ramping rate of generator
why constant voltage transformer should be start without load? and if started then what will happen?
i will applied in 1U-1W on 440 volt primary delta side. what is the result of magtic balance test