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A constant speed drive has the following duty cycle: Load rising from 0 to 500 KW, 4 min. Uniform load of 400 KW ,

A constant speed drive has the following duty cycle: Load rising from 0 to 500 KW, 4 min. Uniform load of 400 KW , 4min. Regenerative power of 500 KW returned to the supply, 5 min. Remains idle for 1 min. Estimate power rating of the motor. Assume losses to be proportional to (power).

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