Calculate rotor copper losses & shaft torque for induction motor

Q.  While delivering an useful power of 20 kW to the full load, a 3 phase, 50 Hz, 6 pole induction motor draws a line current of 50 A. it is connected to supply of 420 V and runs at a speed of 950 rpm. If mechanical losses are 1000 W, then its rotor copper losses and shaft torque are
- Published on 27 Oct 15

a. 1105.26 W, 201.03 N-m
b. 1125.26 W, 201.03 N-m
c. 1105.26 W, 208.09 N-m
d. 1125.26 W, 208.09 N-m

ANSWER: 1105.26 W, 201.03 N-m

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    Discussion

  • Kailash kisku   -Posted on 01 Dec 21
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