2) A single-phase power system is shown in the figure below. The power source feeds a 100 kVA 14/2.4 kV transformer through a feeder impedance of 40 + 150 2. The transformer's equivalent series impedance referred to its low voltage side 0.12 +0.5 2. The load on the transformer is 90 kW at 0.85 pf lagging and 2300 V. a) Draw the equivalent circuit of the system refereed to the high voltage side and calculate source voltage and voltage regulation of the overall system. b) Find efficiency of the overall power system. /1500 VAR Source 400 www Feeder (transmission line) 0.120 20,5 2 ww Transformer Load Load 90 kW 0.85 PF lagging

2) A single-phase power system is shown in the figure below. The power source feeds a 100 kVA 14/2.4 kV transformer through a feeder impedance of 40 + 150 2. The transformer's equivalent series impedance referred to its low voltage side 0.12 +0.5 2. The load on the transformer is 90 kW at 0.85 pf lagging and 2300 V. a) Draw the equivalent circuit of the system refereed to the high voltage side and calculate source voltage and voltage regulation of the overall system. b) Find efficiency of the overall power system. /1500 VAR Source 400 www Feeder (transmission line) 0.120 20,5 2 ww Transformer Load Load 90 kW 0.85 PF lagging

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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