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Q1) The equivalent circuit impedances of a 20-kVA, 8000/240 V, 60-Hz transformer are to be determined. The open-circuit test was performed on the secondary side of the transformer and the short circuit test was performed on the primary side of the transformer .The following data was taken: Open-circuit test (on secondary) Short-circuit test (on primary) Voc 240 v Vsc 489 v Ioc 7.133 A Isc 2.5 A Рос 400 W Psc 240 W 1. Find the impedances of the approximate equivalent circuit referred to the primary side & sketch the circuit . 2. Find the impedances of the approximate equivalent circuit referred to the secondary side & sketch the circuit. 3. List and describe the types of losses that occur in a transformer.

Q1) The equivalent circuit impedances of a 20-kVA, 8000/240 V, 60-Hz transformer are to be determined. The open-circuit test was performed on the secondary side of the transformer and the short circuit test was performed on the primary side of the transformer .The following data was taken: Open-circuit test (on secondary) Short-circuit test (on primary) Voc 240 v Vsc 489 v Ioc 7.133 A Isc 2.5 A Рос 400 W Psc 240 W 1. Find the impedances of the approximate equivalent circuit referred to the primary side & sketch the circuit . 2. Find the impedances of the approximate equivalent circuit referred to the secondary side & sketch the circuit. 3. List and describe the types of losses that occur in a transformer.

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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Q1) The equivalent circuit impedances of a 20-kVA, 8000/240 V, 60-Hz transformer are to be determined. The open-circuit test was performed on the secondary side of the transformer and the short circuit test was performed on the primary side of the transformer .The following data was taken: Open-circuit test (on secondary) Short-circuit test (on primary) Voc 240 v Vsc 489 v Ioc 7.133 A Isc 2.5 A Рос 400 W Psc 240 W 1. Find the impedances of the approximate equivalent circuit referred to the primary side & sketch the circuit . 2. Find the impedances of the approximate equivalent circuit referred to the secondary side & sketch the circuit. 3. List and describe the types of losses that occur in a transformer. 4. Why does one hear a hum when standing near a large power transformer?
Transcribed Image Text:Q1) The equivalent circuit impedances of a 20-kVA, 8000/240 V, 60-Hz transformer are to be determined. The open-circuit test was performed on the secondary side of the transformer and the short circuit test was performed on the primary side of the transformer .The following data was taken: Open-circuit test (on secondary) Short-circuit test (on primary) Voc 240 v Vsc 489 v Ioc 7.133 A Isc 2.5 A Рос 400 W Psc 240 W 1. Find the impedances of the approximate equivalent circuit referred to the primary side & sketch the circuit . 2. Find the impedances of the approximate equivalent circuit referred to the secondary side & sketch the circuit. 3. List and describe the types of losses that occur in a transformer. 4. Why does one hear a hum when standing near a large power transformer?
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