Home workl: A short-shunt compound generator delivers a loadcurrent of 30 A at 220 V, and has armature, series-field and shunt-fieldresistances of 0.05 Q, 0.30 Q and 200 Q respectively. Calculate theinduced e.m.f. and the armature current. Allow 1.0 V per brush forcontact drop.Home work2: A 4-pole, long-shunt lap-wound generator supplies 25kW at a terminal voltage of 500 V. The armature resistance is 0.03 ohm,series field resistance is 0.04 ohm and shunt field resistance is 200 ohm.The brush drop may be taken as 1.0 V. Determine the e.m.f. generated.Calculate also the No. of conductors if the speed is 1200 r.p.m. and fluxper pole is 0.02 weber. Neglect armature reaction.

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Home workl: A short-shunt compound generator delivers a load current of 30 A at 220 V, and has armature, series-field and shunt-fie resistances of 0.05 Q, 0.30 Q and 200 Q respectively. Calculate the induced e.m.f. and the armature current. Allow 1.0 V per brush for contact drop.

Home workl: A short-shunt compound generator delivers a load current of 30 A at 220 V, and has armature, series-field and shunt-fie resistances of 0.05 Q, 0.30 Q and 200 Q respectively. Calculate the induced e.m.f. and the armature current. Allow 1.0 V per brush for contact drop.

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 12.4P

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Question

Home workl: A short-shunt compound generator delivers a load
current of 30 A at 220 V, and has armature, series-field and shunt-field
resistances of 0.05 Q, 0.30 Q and 200 Q respectively. Calculate the
induced e.m.f. and the armature current. Allow 1.0 V per brush for
contact drop.
Home work2: A 4-pole, long-shunt lap-wound generator supplies 25
kW at a terminal voltage of 500 V. The armature resistance is 0.03 ohm,
series field resistance is 0.04 ohm and shunt field resistance is 200 ohm.
The brush drop may be taken as 1.0 V. Determine the e.m.f. generated.
Calculate also the No. of conductors if the speed is 1200 r.p.m. and flux
per pole is 0.02 weber. Neglect armature reaction.

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