single-phase transformer with a rating of 50kva has an iron loss of 400 W and a full load copper loss of 750W (a) determine the percent efficiency at half load at 0.8p.f (b) determine the percent maximum efficiency at 0.8p.f (Take note 5decimal places and box the answers) Subject Electrical Apparatus and Divices

single-phase transformer with a rating of 50kva has an iron loss of 400 W and a full load copper loss of 750W (a) determine the percent efficiency at half load at 0.8p.f (b) determine the percent maximum efficiency at 0.8p.f (Take note 5decimal places and box the answers) Subject Electrical Apparatus and Divices

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 3.27P: A three-phase transformer is rated 1000MVA,220Y/22kV. The Y-equivalent short-circuit impedance,...

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