i) A 470V, 50HZ, 10 pole, 540 rpm, three phase, star connected, squirrel cage induction motor...
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i) A 470V, 50HZ, 10 pole, 540 rpm, three phase, star connected, squirrel cage induction motor takes a power of 55kW. The total stator losses in the machine are 0.8kW and friction & windage losses together are 1.5kW. The operating power factor of the machine is 0.82 lagging. Calculate slip, Air Gap power, Mechanical power developed, Efficiency and Stator current. Suggest how to reduce stator current drawn by the motor from above calculations. (10Marks) i) A 470V, 50HZ, 10 pole, 540 rpm, three phase, star connected, squirrel cage induction motor takes a power of 55kW. The total stator losses in the machine are 0.8kW and friction & windage losses together are 1.5kW. The operating power factor of the machine is 0.82 lagging. Calculate slip, Air Gap power, Mechanical power developed, Efficiency and Stator current. Suggest how to reduce stator current drawn by the motor from above calculations. (10Marks)
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Related Book For
Engineering Economy
ISBN: 978-0132554909
15th edition
Authors: William G. Sullivan, Elin M. Wicks, C. Patrick Koelling
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