Three equal non-inductive resistances are connected in star across a balanced 400 V, 60 Hz system. A single phase wattmeter is connected on the system with its current coil in line 1 and potential coil in lines 1 and 3.This wattmeter registers 900 W. If the line 2 is accidentally open circuited, what will be the wattmeter reading under this condition?

Three equal non-inductive resistances are connected in star across a balanced 400 V, 60 Hz system. A single phase wattmeter is connected on the system with its current coil in line 1 and potential coil in lines 1 and 3.This wattmeter registers 900 W. If the line 2 is accidentally open circuited, what will be the wattmeter reading under this condition?

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 2.5P: A 60Hz, single-phase source with V=27730 volts is applied to a circuit element. (a) Determine the...

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