1. A three phase, 3 wire, CBA system, with the line voltage VAB = 300cis0°, has the following line currents: lA = 60cis120° IB = 62cis-45° Ic = 15.5cis220° Find the readings of wattmeters in lines a. A and B b. B and C C. A and C

1. A three phase, 3 wire, CBA system, with the line voltage VAB = 300cis0°, has the following line currents: lA = 60cis120° IB = 62cis-45° Ic = 15.5cis220° Find the readings of wattmeters in lines a. A and B b. B and C C. A and C

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 3.32P: Determine the positive- and negative-sequence phase shifts for the three- phase transformers shown...

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Concept explainers

Single Phase AC Circuit

Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.

Question

1. A three phase, 3 wire, CBA system, with the line voltage VAB = 300cis0°, has the following line
currents:
lA = 60cis120°
IB = 62cis-45°
Ic = 15.5cis220°
Find the readings of wattmeters in lines a. A and B
b. B and C
C. A and C

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