Correct option is A
Given that, number of poles (P)=6Frequency (f)=60HzSynchronous speed (Ns)=P120f=1200rpmRotor speed (Nr)=1000rpmEfficiency, η=12001000×100=83.33%
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Question
The efficiency of a 60 Hz, 6-pole, 1000 rpm 3-phase induction motor is ________.
Correct option is A
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