Compute the full-load speed

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Reference no: EM131113246

A 20-hp, 250-V shunt motor has a total armature circuit resistance of 0.25 Ω and a field-circuit resistance of 200 ?4. At no load and rated voltage, the speed is 1200 r/min, and the line current is 4.5 A. At full load and rated voltage, the line current is 65 A. Assume the field flux to be reduced by 6% from its value at no load, due to the demagnetizing effect of armature reaction. Compute the full-load speed.

Reference no: EM131113246

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Compute the full-load speed : At full load and rated voltage, the line current is 65 A. Assume the field flux to be reduced by 6% from its value at no load, due to the demagnetizing effect of armature reaction. Compute the full-load speed.

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