In a 220 V compound generator, the resistances of the armature, shunt and series windings are 0.09 ohms, 35 ohms and 0.06 ohms respectively. The load current is 150 A at 220 V. Find the induced e.m.f. and the armature current when the machine is connected as a. long-shunt and as b. short-shunt. How will the ampere- turns of the series field be changed in a and b if a diverter of 0.2 ohm be connected in parallel with the series winding? Neglect brush contact drop and ignore armature reaction.
In a 220 V compound generator, the resistances of the armature, shunt and series windings are 0.09 ohms, 35 ohms and 0.06 ohms respectively. The load current is 150 A at 220 V. Find the induced e.m.f. and the armature current when the machine is connected as a. long-shunt and as b. short-shunt. How will the ampere- turns of the series field be changed in a and b if a diverter of 0.2 ohm be connected in parallel with the series winding? Neglect brush contact drop and ignore armature reaction.
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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Question
In a 220 V compound generator, the resistances of the armature, shunt and series windings are 0.09 ohms, 35
ohms and 0.06 ohms respectively. The load current is 150 A at 220 V. Find the induced e.m.f. and the
armature current when the machine is connected as a. long-shunt and as b. short-shunt. How will the ampere-
turns of the series field be changed in a and b if a diverter of 0.2 ohm be connected in parallel with the series
winding? Neglect brush contact drop and ignore armature reaction.
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