The two-wattmeter method gives P1=1200W and P2=-400W for 3-Ph motor running on 240V line. Assume that the motor load is Y-connected and draws 6A line current. Calculate the power factor (pf) of the motor and its phase impedance?

The two-wattmeter method gives P1=1200W and P2=-400W for 3-Ph motor running on 240V line. Assume that the motor load is Y-connected and draws 6A line current. Calculate the power factor (pf) of the motor and its phase impedance?

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.25P: Consider a single-phase electric system shown in Figure 3.33. Transformers are rated as follows:...

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