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10. A short-shunt compound d.c. Generator supplies a current of 100 A at a voltage of 220 V. If the resistance of the shunt field is 50 £2, of the series field 0.025 £2, of the armature 0.05 2, the total brush drop is 2 V and the iron and friction losses amount to 1 kW, find (a) the generated e.m.f. (b) the copper losses (c) the output power of the prime-mover driving the gen- erator and (d) the generator efficiency. [(a) 229.7 V (b) 1.995 kW (c) 24.99 kW (d) 88%]

10. A short-shunt compound d.c. Generator supplies a current of 100 A at a voltage of 220 V. If the resistance of the shunt field is 50 £2, of the series field 0.025 £2, of the armature 0.05 2, the total brush drop is 2 V and the iron and friction losses amount to 1 kW, find (a) the generated e.m.f. (b) the copper losses (c) the output power of the prime-mover driving the gen- erator and (d) the generator efficiency. [(a) 229.7 V (b) 1.995 kW (c) 24.99 kW (d) 88%]

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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10. A short-shunt compound d.c. Generator supplies a current of 100 A at a voltage of 220 V. If the resistance of the shunt field is 50 £2, of the series field 0.025 £2, of the armature 0.05 2, the total brush drop is 2 V and the iron and friction losses amount to 1 kW, find (a) the generated e.m.f. (b) the copper losses (c) the output power of the prime-mover driving the gen- erator and (d) the generator efficiency. [(a) 229.7 V (b) 1.995 kW (c) 24.99 kW (d) 88%]
Transcribed Image Text:10. A short-shunt compound d.c. Generator supplies a current of 100 A at a voltage of 220 V. If the resistance of the shunt field is 50 £2, of the series field 0.025 £2, of the armature 0.05 2, the total brush drop is 2 V and the iron and friction losses amount to 1 kW, find (a) the generated e.m.f. (b) the copper losses (c) the output power of the prime-mover driving the gen- erator and (d) the generator efficiency. [(a) 229.7 V (b) 1.995 kW (c) 24.99 kW (d) 88%]
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