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a) A separately excited DC generator when running at 1200 rpm supplies 200 A at 125 V to a círcuit of constant resistance. What will be the load current when the speed is dropped to 1000 rpm: i) if the field current is unchanged. ii) if the field current is reduced to 80%? Armature resistance, 0.040 and total drop at brushes, 2V. Ignore saturation and armature reaction.

a) A separately excited DC generator when running at 1200 rpm supplies 200 A at 125 V to a círcuit of constant resistance. What will be the load current when the speed is dropped to 1000 rpm: i) if the field current is unchanged. ii) if the field current is reduced to 80%? Armature resistance, 0.040 and total drop at brushes, 2V. Ignore saturation and armature reaction.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Q2/ a) A separately excited DC generator when running at 1200 rpm supplies 200 A at 125 V to a circuit of constant resistance. What will be the load current when the speed is dropped to 1000 rpm: i) if the field current is unchanged. ii) if the field current is reduced to 80%? Armature resistance, 0.040 and total drop at brushes, 2V. Ignore saturation and armature reaction.
Transcribed Image Text:Q2/ a) A separately excited DC generator when running at 1200 rpm supplies 200 A at 125 V to a circuit of constant resistance. What will be the load current when the speed is dropped to 1000 rpm: i) if the field current is unchanged. ii) if the field current is reduced to 80%? Armature resistance, 0.040 and total drop at brushes, 2V. Ignore saturation and armature reaction.
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