In an alternator running with a balanced zero p.f. lagging load, phase differernc between the resultant armature flux and main field flux is always____?
options is 180 degree....why?? explain.
Answer / shahbaz shaikh
the main flux cuts the armature conductor and hence induces emf in conductor ,conductor are connected to load current start to flow this current produces flux known as armature flux and according to lenz law this flux opposes cause of its production which is main flux hens displacment is 180
| Is This Answer Correct ? | 4 Yes | 0 No |
how to calculate singlephase motor efficiency?
how a single machine can act as both motor and generator? and give explanation interms of connections?
pls tell us AC plant are how do work and parts name with picture
can we use the same fuse for both ac and dc?
Why Parallel operation of two Transformer are Required?
What is the diffrence between PS & metering CT (5p20,0.5 etc.)? Why in PS class CT only Vk is given ? Is PS class CT is more accurate than metering CT?
How to work E.L.C.B and how to connect in circuit.
what happens when series resonance occurs?
When i went to a interview the interviewer ask me a question for that i cant able to answer him if anyone knows answer me How will you design a capacitor bank for a plant? if my p.f is 0.6 i have to improve it to 0.9 or 1 what kind of steps i have to do? and is there any formula for calculating this?
How many 2 ton window A/c can runs on a 125 KVA generator?
What is the use of mc( moving coil) in dc voltmeter and dc ammter and what is the use of ( moving iron)in ac voltmeter nd ac ammeter
why dc is used in control circuits for MV & LV switchgeras instead of ac
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)