GATE Electrical Engineering (EE) 2013 Solved Paper
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The separately excited dc motor in the figure below has a rated armature current of 20 A and a rated armature voltage of 150V. An ideal chopper rectifying at
5 kHz is used to control the armature voltage. If l
La=0.1mH Ra=1Ω, neglecting the armature rectifier, the duty ratio of the chopper to obtain 50% of the rated torque at the rated speed and rated field current is
5 kHz is used to control the armature voltage. If l
La=0.1mH Ra=1Ω, neglecting the armature rectifier, the duty ratio of the chopper to obtain 50% of the rated torque at the rated speed and rated field current is
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