Teaching TN TRB EE Test Series Electrical Machines Three Phase Induction Motor Rotor Cu Losses

What is the rotor copper loss of a 3-ϕ 550 V, 50 Hz, 6 pole induction motor developing 4.1 kW at the shaft with mechanical loss of 750 W at 970 rpm.

1

175 W

2

150 W

3

100 W

4

250 W

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