A three-phase alternator generating unbalanced voltages is connected to an unbalanced load through a 3-phase transmission line as shown in figure. The neutral of the alternator and the star point of the load are solidly grounded. The phase voltages of the alternator are Ea = 1020º, Eb = 102-90°, E = 10/120⁰ E E E +) The positive sequence component of the load current is (A) 1.3102-107⁰ A (B) 0.332Z –120° A (C) 0.9962-120º A (D) 3.5104-81⁰ A + - + j1.0Ω 0000 j1.002 0000 j1.0Ω oooo j1.0Ω 0000 j2.0Ω voor j3.002 0000
A three-phase alternator generating unbalanced voltages is connected to an unbalanced load through a 3-phase transmission line as shown in figure. The neutral of the alternator and the star point of the load are solidly grounded. The phase voltages of the alternator are Ea = 1020º, Eb = 102-90°, E = 10/120⁰ E E E +) The positive sequence component of the load current is (A) 1.3102-107⁰ A (B) 0.332Z –120° A (C) 0.9962-120º A (D) 3.5104-81⁰ A + - + j1.0Ω 0000 j1.002 0000 j1.0Ω oooo j1.0Ω 0000 j2.0Ω voor j3.002 0000
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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Transcribed Image Text:A three-phase alternator generating unbalanced voltages is connected to an unbalanced
load through a 3-phase transmission line as shown in figure. The neutral of the alternator
and the star point of the load are solidly grounded. The phase voltages of the alternator are
Ea = 1020°, Eb = 102-90°, Ec = 10/120⁰
E
E
E
The positive sequence component of the load current is
(A) 1.3102-107⁰ A
(B) 0.332Z –120° A
(C) 0.9962-120° A
(D) 3.5104-81⁰ A
+)
+
j1.002
0000
j1.002
0000
j1.0Ω
vovo
j1.0Ω
0000
j2.002
voor
j3.002
oooo
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