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A three-phase load consists of three identical impedances connected in delta. The impedances have a value of (100 + j40) Q. The supply voltage is 440 V. The two- wattmeter method is used to determine the total power drawn by the load. One wattmeter, W₁, has its current coil connected in the blue line and its voltage coil connected between the yellow and blue lines. Calculate: a) The power measured by each wattmeter b) The power factor of the load using the wattmeter readings c) The apparent power supplied to the load d) The reactive power drawn by the load.

A three-phase load consists of three identical impedances connected in delta. The impedances have a value of (100 + j40) Q. The supply voltage is 440 V. The two- wattmeter method is used to determine the total power drawn by the load. One wattmeter, W₁, has its current coil connected in the blue line and its voltage coil connected between the yellow and blue lines. Calculate: a) The power measured by each wattmeter b) The power factor of the load using the wattmeter readings c) The apparent power supplied to the load d) The reactive power drawn by the load.

Introductory Circuit Analysis (13th Edition)
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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A three-phase load consists of three identical impedances connected in delta. The impedances have a value of (100 + j40) Q. The supply voltage is 440 V. The two- wattmeter method is used to determine the total power drawn by the load. One wattmeter, W₁, has its current coil connected in the blue line and its voltage coil connected between the yellow and blue lines. Calculate: a) The power measured by each wattmeter b) The power factor of the load using the wattmeter readings c) The apparent power supplied to the load d) The reactive power drawn by the load.
Transcribed Image Text:A three-phase load consists of three identical impedances connected in delta. The impedances have a value of (100 + j40) Q. The supply voltage is 440 V. The two- wattmeter method is used to determine the total power drawn by the load. One wattmeter, W₁, has its current coil connected in the blue line and its voltage coil connected between the yellow and blue lines. Calculate: a) The power measured by each wattmeter b) The power factor of the load using the wattmeter readings c) The apparent power supplied to the load d) The reactive power drawn by the load.
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