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 |
derive the e.m.f equation of transformer
why can't we provide dc supply to a transformer?
what are the dimensions for 200 kva transformer plinth (plateform),in which pcc m20 is used..
What is the difference between solid grounding and impedance grounding?
what are the types of cables?
What is mean by powerfactor. What is the difference between leading and lagging power factor?
can anybody give me current carrying capacity of cables e.g size of cable in sq.mm & its current capacity both alluminum & for copper
Whether the over frequency protection is turbine or alternator and why?
which type of motor is suitable for water suction pump ?
what is neutral voltage
77 In constant power region of 3-phase IM torque-speed characteristics, the torque is proportional to A speed B slip C 1/speed D 1/slip
What happens if we give ac supply to dc shunt and series motors individually
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)