The primary and secondary windings of a 500 kVA transformer have resistances of 0.44 Ω and 0.0027 Ω, respectively. The rated primary and secondary voltages are 11013 V and 473 V, respectively and the core loss is 2.9 kW. Assuming the power-factor of the load to be 0.8, calculate the output at which the efficiency is a maximum. Give your answer in kVA correct to 2 decimal

The primary and secondary windings of a 500 kVA transformer have resistances of 0.44 Ω and 0.0027 Ω, respectively. The rated primary and secondary voltages are 11013 V and 473 V, respectively and the core loss is 2.9 kW. Assuming the power-factor of the load to be 0.8, calculate the output at which the efficiency is a maximum. Give your answer in kVA correct to 2 decimal

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.54P: An infinite bus, which is a constant voltage source, is connected to the primary of the...

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