A 25-kW series generator has an efficiency of 85 per cent when operating at rated load. If the stray-power loss is 20 per cent of the full load loss, calculate the efficiency of the generator when it is delivering a load of 15 kW, assuming that the stray-power loss is substantially constant and the other losses vary as the square of the load.

A 25-kW series generator has an efficiency of 85 per cent when operating at rated load. If the stray-power loss is 20 per cent of the full load loss, calculate the efficiency of the generator when it is delivering a load of 15 kW, assuming that the stray-power loss is substantially constant and the other losses vary as the square of the load.

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 12.6P

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