Example 28.6. A d.c. generator has the following magnetisation characteristics. Field current (A) : 1 2 4. 6. 7 8. Generated e.m.f. (V) : 23 45 67 85 100 112 121 126 If the generator is shunt excited, determine the load current. (a) when terminal p.d. is 120 V, the field resistance is 15 N at a speed of 600 r.p.m. And (b) when terminal p.d. is 144 V, the field resistance is 18 Q at a speed of 700 r.p.m.

Example 28.6. A d.c. generator has the following magnetisation characteristics. Field current (A) : 1 2 4. 6. 7 8. Generated e.m.f. (V) : 23 45 67 85 100 112 121 126 If the generator is shunt excited, determine the load current. (a) when terminal p.d. is 120 V, the field resistance is 15 N at a speed of 600 r.p.m. And (b) when terminal p.d. is 144 V, the field resistance is 18 Q at a speed of 700 r.p.m.

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

Chapter11: Transient Stability

Section: Chapter Questions

Problem 11.3P

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