An unbalanced delta-connected load is connected across the lines of a 4-wire balanced three-phase supply with neutral connection. Two wattmeter W1, W2 are connected in lines 1 and 3 with the common potential connection in the neutral wire. These wattmeters read 1796.5 and 3000 watts, respectively. The current in lines 1 and 3 is 20 A. If the common potential connection is transferred to line 2, what will be the reading of the two wattmeters? The system voltage per phase is 208 V. Assume a phase sequence of 1-2-3 with Vin as reference.
An unbalanced delta-connected load is connected across the lines of a 4-wire balanced three-phase supply with neutral connection. Two wattmeter W1, W2 are connected in lines 1 and 3 with the common potential connection in the neutral wire. These wattmeters read 1796.5 and 3000 watts, respectively. The current in lines 1 and 3 is 20 A. If the common potential connection is transferred to line 2, what will be the reading of the two wattmeters? The system voltage per phase is 208 V. Assume a phase sequence of 1-2-3 with Vin as reference.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Transcribed Image Text:An unbalanced delta-connected load is connected across the lines of a 4-wire balanced three-phase supply
with neutral connection. Two wattmeter W1, W2 are connected in lines 1 and 3 with the common potential
connection in the neutral wire. These wattmeters read 1796.5 and 3000 watts, respectively. The current in
lines 1 and 3 is 20 A. If the common potential connection is transferred to line 2, what will be the reading of
the two wattmeters? The system voltage per phase is 208 V. Assume a phase sequence of 1-2-3 with Vln as
reference.
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