Q7. Choose the letter of correct answer 7(i) The maximum efficiency of a synchronous generator is 95%. Determine the mechanical losses of the machine if a 10kW full load is connected? a. 365W b. 263W 100W C. d. 50W 7(ii)A 2kW, 250V, 60Hz, three phase synchronous generator has 0.50 synchronous reactance and a negligible resistance. Determine the mechanical losses including core losses if the efficiency is 90%? a. 211W b. 222W C. 233W d. 244W

Q7. Choose the letter of correct answer 7(i) The maximum efficiency of a synchronous generator is 95%. Determine the mechanical losses of the machine if a 10kW full load is connected? a. 365W b. 263W 100W C. d. 50W 7(ii)A 2kW, 250V, 60Hz, three phase synchronous generator has 0.50 synchronous reactance and a negligible resistance. Determine the mechanical losses including core losses if the efficiency is 90%? a. 211W b. 222W C. 233W d. 244W

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

Chapter7: Symmetrical Faults

Section: Chapter Questions

Problem 7.3MCQ: The amplitude of the sinusoidal symmetrical ac component of the three-phase short-circuit current of...

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