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Electrical EngineeringQ&A LibraryRunning at 1200 rpm from a 280-V source, a series-connected dc motor draws an armature current of 25 A. The field resistance is 0.2 Ω and the armature resistance is 0.3 Ω. Assuming that the flux is proportional to the field current, determine the speed at which the armature current is 10 A.Question

Running at 1200 rpm from a 280-V source, a series-connected dc motor draws an armature current of 25 A. The field resistance is 0.2 Ω and the armature resistance is 0.3 Ω.

Assuming that the flux is proportional to the field current, determine the speed at which the armature current is 10 A.

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