1. The equivalent circuit impedances of a single phase 10-KVA, 480/120 V, 60 Hz transformer are to be determined. The open circuit and short circuit test results as performed on the primary side is as follows. Open-circuit test Short-circuit test Voc = 480 V loc = 0.41 A Poc = 38 W Vsc = 10.0 V Isc = 10.6 A Psc = 26 W %3D %3D |3| %3D %3D %3D a) Find the impedances of the approximate transformer equivalent circuit referred to the primary side, and sketch the circuit. b) What are the impedances when referred to the secondary side. Sketch the resulting circuit.

1. The equivalent circuit impedances of a single phase 10-KVA, 480/120 V, 60 Hz transformer are to be determined. The open circuit and short circuit test results as performed on the primary side is as follows. Open-circuit test Short-circuit test Voc = 480 V loc = 0.41 A Poc = 38 W Vsc = 10.0 V Isc = 10.6 A Psc = 26 W %3D %3D |3| %3D %3D %3D a) Find the impedances of the approximate transformer equivalent circuit referred to the primary side, and sketch the circuit. b) What are the impedances when referred to the secondary side. Sketch the resulting circuit.

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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How does the coupling factor affect the primary and secondary voltages? For example if the turns ratio in my transformer is 1:2 and the Vin is 10V, the voltage on the primary side is 10V and the voltage on the secondary side is 20V when the coupling factor (k) is 1. What will the primary and secondary voltages be if the coupling factor becomes 0.5?
When the transformer is loaded in a balanced fashion up to its nominal rating (10 MVA), calculate the high side line-to-line phasor voltages (ab, bc, ca). and low side phasor voltages both line-to-line and line-to-neutral (ab, bc, ca, a, b,c). as a reference for calculations the low side A line to neutral voltage is 7620V at an angle of 0 degrees when the transformer is at rated power. The transformer has the following characteristics: V: 138kV delta high side/ 13.2 kV wye low side 9% impedance X/R ratio of 20
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Please solve the problem i want urjent
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Topic- basic & const.