A 3-phase IM is supplied from 50 Hz system. It runs at speed
of 1440 rpm and slip equal to 4 %. Calculate rotor
frequency.
A 50 Hz B 0 Hz
C 4 Hz D 6 Hz
Answers were Sorted based on User's Feedback
Answer / varaprasad
ANS: 2Hz
Rotorfrequency = s×frequency of applied voltage to stator = sf
SO,
ROTOR F = 0.04*50=2Hz
| Is This Answer Correct ? | 7 Yes | 0 No |
Send the control circuit digram of a star delta stater?
When we getting shock, its we getting from voltage or Current.
i have dry type transformers can you help me that how many tests i can do to know the performence of transformer and also please tell me about the BDV test and Insulation resistance test in oil cooled transformers
Disadventage of cable-gland earthing if any ?
Why CT's shall not be kept open?
5 Answers ABC, Qatar Gas, TIPL,
why the 4 terminal are named as main, line, common, voltage (M, L, C, v) of a wattmeter?? why not its nameed as A,B,C,D??
Whatis the procedure for getting Electrical (light) licence while Iam a diploma holder in electrical Engg . I Compleated my one yr Apprentice training & worked as a junior engineer (ele) for 2 yr(contract basis).
how we can calcultae the short circuit level for bus bar
0 Answers Jaiprakash, Panorama Apparels,
is EEE eligible for getting electrical supervisor certificate ? if yes then from which state i sud apply
what will be the efficiency off x'mer during no load test and during short circuit test
1 Answers GPSC Gujarat Public Service Commission,
we have 3 single phase transformers. how will we generate 6 supply from 3 phase supply input
what is the standard duration after failure EB power
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)