Question: A 3 kW , 4 0 0 V , 5 0 Hz , 4 pole, 1 4 0 0 RPM , delta connected induction motor

A 3 kW,400 V,50 Hz,4 pole, 1400 RPM, delta connected induction motor has the following parameters referred to stator. R1=2.5 ohm ; R2=4.5 ohm , X1=X2=6 ohm. Speed control is achieved by Stator Voltage Control. When driving a fan load, the motor runs at rated speed and rated voltage.

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