Example 8.19. A separately excited d.c. generator, when running at 1200 r.p.m. supplies 200 A at 125 Vto a circuit ofconstant resistance. What will be the current when the speed is dropped to 1000 r.p.m. and the field current is reduced to 80% ? Armature resistance, 0.04 2 200 A 0.04 125 and total drop at brushes, 2 V. Ignore satura- tion and armature reaction. (Elect. Machines AMIE Sec. B. 1991) Load

Example 8.19. A separately excited d.c. generator, when running at 1200 r.p.m. supplies 200 A at 125 Vto a circuit ofconstant resistance. What will be the current when the speed is dropped to 1000 r.p.m. and the field current is reduced to 80% ? Armature resistance, 0.04 2 200 A 0.04 125 and total drop at brushes, 2 V. Ignore satura- tion and armature reaction. (Elect. Machines AMIE Sec. B. 1991) Load

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.12P

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