A dc-motor shunt field winding of resistance 210 is to be supplied from a 220-V rms, 50-Hz,
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A dc-motor shunt field winding of resistance 210Ω is to be supplied from a 220-V rms, 50-Hz, three-phase source through a three-phase, phase controlled rectifier. Calculate the delay angle αd which will result in a field current of 1.1 A.
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Saud Ur Rehman
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