A 220 v dc shunt motor runs at 1400 rpm on no-load drawing, Electrical Engineering

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A 220 v dc shunt motor runs at 1400 rpm on no-load drawing

1. The open-circuit voltage of a dc shunt generator is 130 V. When loaded the voltage drops to 124 V. Determine the load current.
Given: R_a = 0.03 Ω, R_f = 20 Ω

2. A 220 V dc shunt motor runs at 1400 rpm on no-load drawing an armature current of 2.4 A from the supply. Calculate the motor speed for an armature current of 60 A. Assume that the flux/pole reduces by 4% armature reaction. It is given that R_a = 0.24 Ω.

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Electrical Engineering: A 220 v dc shunt motor runs at 1400 rpm on no-load drawing

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Electrical Engineering: A 220 v dc shunt motor runs at 1400 rpm on no-load drawing

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