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A 20 kVA, 2200 / 220 V, 50 Hz transformer for predetermination of efficiency and regulation as follows, O.C test:220 V, 4.2 A, 148 W (L.V.side) S.C.test: 86 V, 10.5 A, 360 W (H.V.side) Determine, i) Efficiency at full load at 0.8 pf lag and ii) Regulation at 3/4 full loads 0.8 p.f.lead.

A 20 kVA, 2200 / 220 V, 50 Hz transformer for predetermination of efficiency and regulation as follows, O.C test:220 V, 4.2 A, 148 W (L.V.side) S.C.test: 86 V, 10.5 A, 360 W (H.V.side) Determine, i) Efficiency at full load at 0.8 pf lag and ii) Regulation at 3/4 full loads 0.8 p.f.lead.

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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A 20 kVA, 2200/ 220 V, 50 Hz transformer for predetermination of efficiency and regulation as follows, O.C test :220 V, 4.2 A, 148 W (L.V.side) S.C.test: 86 V, 10.5 A, 360 W (H.V.side) Determine, i) Efficiency at full load at 0.8 pf lag and ii) Regulation at 3/4 full loads 0.8 p.f.lead.
Transcribed Image Text:A 20 kVA, 2200/ 220 V, 50 Hz transformer for predetermination of efficiency and regulation as follows, O.C test :220 V, 4.2 A, 148 W (L.V.side) S.C.test: 86 V, 10.5 A, 360 W (H.V.side) Determine, i) Efficiency at full load at 0.8 pf lag and ii) Regulation at 3/4 full loads 0.8 p.f.lead.
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