21. The three factors which cause decrease in the terminal voltage of a shunt generator are (a) armature reactances (b) armature resistance armature leakages (d) armature reaction (e) reduction in field current 22. If field resistance of a d.c. shunt generator is increased beyond its critical value, the generator (a) output voltage will exceed its name-plate rating (b) will not build up (c) may burn out if loaded to its name-plate rating (d ) power output may exceed its name-plate Rating

21. The three factors which cause decrease in the terminal voltage of a shunt generator are (a) armature reactances (b) armature resistance armature leakages (d) armature reaction (e) reduction in field current 22. If field resistance of a d.c. shunt generator is increased beyond its critical value, the generator (a) output voltage will exceed its name-plate rating (b) will not build up (c) may burn out if loaded to its name-plate rating (d ) power output may exceed its name-plate Rating

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter57: Dc Variable-speed Control-motor Drives

Section: Chapter Questions

Problem 8SQ

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