120 kV Fig. 1 nam wzn Z= 6 + 189 110 kV Balanced 3-phase load a. W ZL ZL bem ² m b. ZL co w LOAD: 120 kVA 0.6 pf lagging my 1. For Figure 1: The 34 source on the left delivers power to a 30 load via conductors with an impedance of (6+j8) per line. The magnitude of the line-to-line voltages at the source side and at the load side are 120 and 110 kV, respectively. If the power factor of the load is 0.90 lagging, determine (a) the currents (magnitude and angle) and voltages (magnitude and angle) of the 36 load. (Hint: Voltage at the source side and the load side have given magnitude but different angles. Assume the load is Y-connected and use its Van as the reference.)

120 kV Fig. 1 nam wzn Z= 6 + 189 110 kV Balanced 3-phase load a. W ZL ZL bem ² m b. ZL co w LOAD: 120 kVA 0.6 pf lagging my 1. For Figure 1: The 34 source on the left delivers power to a 30 load via conductors with an impedance of (6+j8) per line. The magnitude of the line-to-line voltages at the source side and at the load side are 120 and 110 kV, respectively. If the power factor of the load is 0.90 lagging, determine (a) the currents (magnitude and angle) and voltages (magnitude and angle) of the 36 load. (Hint: Voltage at the source side and the load side have given magnitude but different angles. Assume the load is Y-connected and use its Van as the reference.)

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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Concept explainers

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.

Question

120 kV
Fig. 1
m
man
man
Z=6+j82
110 kV
Balanced
3-phase
load
ZL
ZL
bw m
ZL
com ² m
LOAD:
120 kVA
0.6 pf
lagging
1. For Figure 1: The 30 source on the left delivers power to a 30 load via conductors with an impedance of (6+j8)
2 per line. The magnitude of the line-to-line voltages at the source side and at the load side are 120 and 110
kV, respectively. If the power factor of the load is 0.90 lagging, determine (a) the currents (magnitude and
angle) and voltages (magnitude and angle) of the 30 load. (Hint: Voltage at the source side and the load side
have given magnitude but different angles. Assume the load is Y-connected and use its Van as the reference.)
datumthi.
utor or

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