why we are giving D.C. supply to field of an alternator, why can't we give the a.C. supply
Answers were Sorted based on User's Feedback
Answer / mohd arif
just to produdce constant magnetic field. since the
alternator does not generates emf by applying the ac supply.
| Is This Answer Correct ? | 4 Yes | 8 No |
my bachelors was done with EEE now i got admit in NU with CS as course. how to answer this qns 1) why u choose cs? 2) why u changed from eee to cs
What type interview questions ask in Electrical technicians
During Millivolt drop test current leads are applied in the extreme ends and voltage leads are given just before the current leads.. what will be the difference if voltage leads are given in the extreme ends? and why?
in our 6.6kv motor feeder[it is having two sources from Bus A&B] earth fault relay is acting, we checked CBCT connection and cable meggerd values found very good still earth fault acting during first two are three start after that it will hold. please clarify what was the reason. if same motor is starting from other Bus-A it will start.
why do you add the load short circuit impedance when considering short circuit amperage. It seems that you should only consider supply. If you need to consider loads and you don't know what loads are to be added , what would be a good sub-transient reactance rating for the loads?
what is self commutation how a thyristor discharges through a capacitor and inductor
There are Two questions about Steam Turbine Generator... What is HRSG bypass of LP, HP used for in power generation? In particualar, in the event that fault of HP bypass, there would be STG TRIP in operation but none on the LP bypass fault...what's the reason ?
how much up to LT Voltage range?
pls someone send me sample question papers along with the key.thanks in advance
why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?
2 Answers QRG Health City, Siemens,
auto reclosing scheme for radial ehv feeder is to be implemented or not?
what type of questions are asked and howmwny questions belong this catagory?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)