3. About Transformer efficiency 3.1. Define efficiency 3.2.State the criterion for maximum efficiency 3.3.A 1000 KVA, 110/220 volt, 50 Hz single phase transformer has an efficiency of 98.5% at half load and 0.8 power factor leading. Whereas its efficiency at full load unity power factor is 98.9%. Determine 3.3.1. An expression for iron losses 3.3.2. An expression for copper losses at full load. 3.3.3. Solve the two equations to determine the iron and copper losses at full load.

3. About Transformer efficiency 3.1. Define efficiency 3.2.State the criterion for maximum efficiency 3.3.A 1000 KVA, 110/220 volt, 50 Hz single phase transformer has an efficiency of 98.5% at half load and 0.8 power factor leading. Whereas its efficiency at full load unity power factor is 98.9%. Determine 3.3.1. An expression for iron losses 3.3.2. An expression for copper losses at full load. 3.3.3. Solve the two equations to determine the iron and copper losses at full 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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.31MCQ

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Similar questions

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