electric power system

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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In the quitessential electric power system in the figure, a voltmeter reads the same at the source
and at the load, 149 volts. At the source, an ammeter reads 13 amps. The source sees a inductive
circuit. The cable (feeder) has a resistance of 0.390525 ohms and a reactance of 4.46372 ohms. (a)
What is the power factor angle, in degrees, at the source; (b) What is the active power delivered by
the source; (c) What is the reactive power delivered by the source; (d) What is the power factor
angle at the load, in degrees; (e) What is the active power absorbed by the load; () What is the
reactive power absorbed by the load.
Simple Power System
jX
R.
(a) 0, =
田 deg
(b) P, =
(C) Q, =
VAr
(d) 8; =
出 deg
(e) P; =
(f) Qf =
VAr
load
Transcribed Image Text:In the quitessential electric power system in the figure, a voltmeter reads the same at the source and at the load, 149 volts. At the source, an ammeter reads 13 amps. The source sees a inductive circuit. The cable (feeder) has a resistance of 0.390525 ohms and a reactance of 4.46372 ohms. (a) What is the power factor angle, in degrees, at the source; (b) What is the active power delivered by the source; (c) What is the reactive power delivered by the source; (d) What is the power factor angle at the load, in degrees; (e) What is the active power absorbed by the load; () What is the reactive power absorbed by the load. Simple Power System jX R. (a) 0, = 田 deg (b) P, = (C) Q, = VAr (d) 8; = 出 deg (e) P; = (f) Qf = VAr load
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