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The efficiency of a 1000kVA, 110/220V, 50Hz single phase transformer is 98.5% at a half load 0.8 p.f and 98.8 % at full-load unity power factor. The voltage regulation is 10% at full-load 0.707 p.f. lag. Determine 1- The efficiency at 80% load and 0.6 p.f 2- The maximum efficiency.

The efficiency of a 1000kVA, 110/220V, 50Hz single phase transformer is 98.5% at a half load 0.8 p.f and 98.8 % at full-load unity power factor. The voltage regulation is 10% at full-load 0.707 p.f. lag. Determine 1- The efficiency at 80% load and 0.6 p.f 2- The maximum efficiency.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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The efficiency of a 1000kVA, 110220V, 50Hz single phase transformer is 98.5% at a half load 08 pf and 98.8 % at full-load unity power factor. The voltage regulation is 10% at full-load 0.707 p.f. lag. Determine 1- The efficiency at 80% load and 0.6 p.f. 2- The maximum efficiency.
Transcribed Image Text:The efficiency of a 1000kVA, 110220V, 50Hz single phase transformer is 98.5% at a half load 08 pf and 98.8 % at full-load unity power factor. The voltage regulation is 10% at full-load 0.707 p.f. lag. Determine 1- The efficiency at 80% load and 0.6 p.f. 2- The maximum efficiency.
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