Determine the efficiency of three-phase 400 kVA, 11kV/ 380 V transformer at over-loading condition by 15% of its rated with unity power factor load. The copper and iron losses at full load are 16 kW, 4 kW respectively. b) State one or more of the ways to reduce the losses that taken place in transformers.

Determine the efficiency of three-phase 400 kVA, 11kV/ 380 V transformer at over-loading condition by 15% of its rated with unity power factor load. The copper and iron losses at full load are 16 kW, 4 kW respectively. b) State one or more of the ways to reduce the losses that taken place in transformers.

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

Chapter8: Symmetrical Components

Section: Chapter Questions

Problem 8.39P

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