5. (a) In a 120 V compound generator, the resistances of the armature, shunt and series winding are 0.06, 25, and 0.04 ohms respectively. The load current is 100 A at 120 V. Find the induced emf and the armature current when the machine is connected as (a) a long shunt and as (b) short shunt. (c) If a diverter of 0.102 is connected in parallel with the series field winding of (a) determine the current through the series field and in the diverter. Neglect brush drop and ignore armature reaction. (Ans. a. 104.8 amp, 130.48 volts, b. 104.96 Amp, 30.29 volts c. 74.857 amp, 29.94 amp

5. (a) In a 120 V compound generator, the resistances of the armature, shunt and series winding are 0.06, 25, and 0.04 ohms respectively. The load current is 100 A at 120 V. Find the induced emf and the armature current when the machine is connected as (a) a long shunt and as (b) short shunt. (c) If a diverter of 0.102 is connected in parallel with the series field winding of (a) determine the current through the series field and in the diverter. Neglect brush drop and ignore armature reaction. (Ans. a. 104.8 amp, 130.48 volts, b. 104.96 Amp, 30.29 volts c. 74.857 amp, 29.94 amp

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 12.11P

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