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What should be the armature mmf per pole for output over 1500 kW?

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What should be the armature mmf per pole for output over 1500 kW?

(a) 5000 A

(b) 5000-7500 A

(c) 7500-10000 A

(d) upto 12500

This question was addressed to me during a job interview.

My query is from Selection of Number of Poles topic in section Thermal Design Aspects of Electrical Machines & D.C of Design of Electrical Machines

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The correct choice is (d) upto 12500

The explanation: 5000 A is for output of about 100 kW. 5000 to 7500 A for output voltage of 100 to 500 kW. 7500 to 10000 A is for the output of 500 to 1500 kW.

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