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A 37.3 kW, 3 phase, 4 pole, 50 Hz, induction motor has a full load efficiency...

A 37.3 kW, 3 phase, 4 pole, 50 Hz, induction motor has a full load efficiency of 85%. The friction and windage losses are one third of the no load losses and
the copper loss equals the iron loss at full load. Find the full load speed. Stator resistance may be neglected.
[Answer: 1401.3 rpm]

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