The power input to a 415 V, 50 Hz, 6 pole 3-phase induction motor running at 975 rpm is 40 kW.
The stator losses are i kW and friction and windage losses total 2 kW.
What is the efficiency of motor?
A. 0.925
B. 0.92
C. 0.9
D. 0.88
Show Answer
Answer: C
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