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

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

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.14MCQ: The instantaneous power absorbed by the load in a single-phase ac circuit, for a general R LC load...

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