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1. A balanced Y-connected load with a phase impedance of 40 + j25 is supplied by a balanced, positive sequence A-connected source with a line voltage of 210 V. Calculate the phase currents. Use Vab as reference. 2.

1. A balanced Y-connected load with a phase impedance of 40 + j25 is supplied by a balanced, positive sequence A-connected source with a line voltage of 210 V. Calculate the phase currents. Use Vab as reference. 2.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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PART III BALANCED AND UNBALANCED THREE PHASE SYSTEMS DIRECTIONS:With the aid of the table for the formulas in three phase systems, solve the following problems by drawing the equivalent three phase circuits with the correct label. 1. A balanced Y-connected load with a phase impedance of 40 + j25 N is supplied by a balanced, positive sequence A-connected source with a line voltage of 210 V. Calculate the phase currents. Use Vab as reference. | ab 2. A positive-sequence, balanced A-connected source supplies a balanced A-connected load. If the impedance per phase of the load is 18 +jl2 N and I, = 19.202/35° A, find I4B and VAB- Answer: 11.094/65° A, 240/98.69° V. In a balanced A-Y circuit, Vab = 240/15° and Zy = (12 +jl5) N. Calculate the line currents. Answer: 7.21/-66.34° A, 7.21/–173.66° A, 7.21/53.66° A. 3.
Transcribed Image Text:PART III BALANCED AND UNBALANCED THREE PHASE SYSTEMS DIRECTIONS:With the aid of the table for the formulas in three phase systems, solve the following problems by drawing the equivalent three phase circuits with the correct label. 1. A balanced Y-connected load with a phase impedance of 40 + j25 N is supplied by a balanced, positive sequence A-connected source with a line voltage of 210 V. Calculate the phase currents. Use Vab as reference. | ab 2. A positive-sequence, balanced A-connected source supplies a balanced A-connected load. If the impedance per phase of the load is 18 +jl2 N and I, = 19.202/35° A, find I4B and VAB- Answer: 11.094/65° A, 240/98.69° V. In a balanced A-Y circuit, Vab = 240/15° and Zy = (12 +jl5) N. Calculate the line currents. Answer: 7.21/-66.34° A, 7.21/–173.66° A, 7.21/53.66° A. 3.
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