Example 32.72. A 300-kVA, single-phase transformer is designed to have a resistance of 1.5% and maximum efficiency occurs at a load of 173.2 kVA. Find its efficiency when supplying full-load at 0.8 p.f. lagging at normal voltage and frequency. (Electrical Machines-I, Gujarat Univ. 1985)

Example 32.72. A 300-kVA, single-phase transformer is designed to have a resistance of 1.5% and maximum efficiency occurs at a load of 173.2 kVA. Find its efficiency when supplying full-load at 0.8 p.f. lagging at normal voltage and frequency. (Electrical Machines-I, Gujarat Univ. 1985)

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 3.4P: A single-phase 100-kVA,2400/240-volt,60-Hz distribution transformer is used as a step-down...

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Example 32.72. A 300-kVA, single-phase transformer is designed to have a resistance of 1.5%
and maximum efficiency occurs at a load of 173.2 kVA. Find its efficiency when supplying full-load
at 0.8 p.f. lagging at normal voltage and frequency. (Electrical Machines-I, Gujarat Univ. 1985)

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