1. A three-phase, three-wire, 240 V, ABC system supplies a delta-connected load in which ZAB = 25/90°, ZBC = 15230° and ZCA = 200°. a) Find the line currents and the total real and reactive powers supplied by the source. Draw the phasor diagram for the line voltages and phase and line currents. Vc VA AT VB ICT 1 CA ZAB | BT ZBC b) A 240 V, 2 HP, 0.95 efficiency, single-phase motor is connected as shown below. The motor is operating at 0.85 p.f. lagging. Repeat (a). Include the motor current in the phasor diagram VA AT ZAB Ꮓ ΑΒ V B CT 1BT M ZBC ZCA

1. A three-phase, three-wire, 240 V, ABC system supplies a delta-connected load in which ZAB = 25/90°, ZBC = 15230° and ZCA = 200°. a) Find the line currents and the total real and reactive powers supplied by the source. Draw the phasor diagram for the line voltages and phase and line currents. Vc VA AT VB ICT 1 CA ZAB | BT ZBC b) A 240 V, 2 HP, 0.95 efficiency, single-phase motor is connected as shown below. The motor is operating at 0.85 p.f. lagging. Repeat (a). Include the motor current in the phasor diagram VA AT ZAB Ꮓ ΑΒ V B CT 1BT M ZBC ZCA

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

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.15MCQ: For a balanced three-phase positive-sequence currents Ia,Ib,Ic, does the equation Ia+Ib+Ic=0 hold...

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