What is the full-load speed of shunt-dc motor

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Reference no: EM13270158

A 20-hp, 250 V shunt-DC motor has an armature circuit of 0.22 ohms and a field resistance of 170 ohms . At a low-load, the speed is 1200 rpm and the armature current is 3 A. At full-load, the current is 55 A, and the flux is reduced by 6% (due to armature reaction) from its value at lowload. What's the full-load speed?

Reference no: EM13270158

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