Electrical Engineering > GATE 2023 > Induction Motors
A three-phase 415 V, 50 Hz, 6-pole, 960 RPM, 4 HP squirrel cage induction motor drives a constant torque load at rated speed operating from rated supply and delivering rated output. If the supply voltage and frequency are reduced by 20%, the resultant speed of the motor in RPM (neglecting the stator leakage impedance and rotational losses) is _______. (Round off to the nearest integer).

Correct : 770

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squirrel cage induction motor GATE Electrical Engineering 2023 motor speed reduction constant torque load supply voltage reduction motor speed calculation GATE electrical induction motor speed motor RPM reduction

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