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.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.45P: Two balanced Y-connected loads, one drawing 10 kW at 0.8 power factor lagging and the other IS kW at...

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