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1- A single-phase power system is shown in Figure below. The power source feeds a 100- kVA 14/2.4-kV transformer through a feeder impedance of 40.0+j150 &. The transformer's equivalent series impedance referred to its low-voltage side is 0.12 + j0.5 &. The load on the transformer is 90 kW at 0.80 PF lagging and 2300 V. 40n j150N 0.12n j0.5n Load 90 kW V source 0.85 PF lagging

1- A single-phase power system is shown in Figure below. The power source feeds a 100- kVA 14/2.4-kV transformer through a feeder impedance of 40.0+j150 &. The transformer's equivalent series impedance referred to its low-voltage side is 0.12 + j0.5 &. The load on the transformer is 90 kW at 0.80 PF lagging and 2300 V. 40n j150N 0.12n j0.5n Load 90 kW V source 0.85 PF lagging

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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1-A single-phase power system is shown in Figure below. The power source feeds a 100- kVA 14/2.4-kV transformer through a feeder impedance of 40.0 + j150 &. The transformer's equivalent series impedance referred to its low-voltage side is 0.12 + j0.5 &. The load on the transformer is 90 kW at 0.80 PF lagging and 2300 V. 40n j150n 0.12n j0.5n Load 90 kW 0.85 PF lagging source Source Feeder Transformer Load (transmission line) (a) What is the voltage at the power source of the system? (b) What is the power losses in the feeder?
Transcribed Image Text:1-A single-phase power system is shown in Figure below. The power source feeds a 100- kVA 14/2.4-kV transformer through a feeder impedance of 40.0 + j150 &. The transformer's equivalent series impedance referred to its low-voltage side is 0.12 + j0.5 &. The load on the transformer is 90 kW at 0.80 PF lagging and 2300 V. 40n j150n 0.12n j0.5n Load 90 kW 0.85 PF lagging source Source Feeder Transformer Load (transmission line) (a) What is the voltage at the power source of the system? (b) What is the power losses in the feeder?
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