Q2. For each set of voltages state whether or not the voltages form the balanced 3-phase set. If the set is balanced, state whether the phase sequence is positive or negative. If the set is not balanced explain why. a) va = 48 cos(314t 45°) V, vp = 48 cos (314t 165°) V, ve = 48 cos (314t + 75°) V. b) va 188 cos(250t + 60°) V, 188 cos 250t V, 188 cos (250t 60°) V. c) va = 426 cos 100r V, U 3D 462 cos(100t + 120°) V, ve = 426 cos(100t 120°) V. d) va 1121 cos (2000t 20°) V, %3D | = 1121 sin (2000t 50°) V, - 1121 cos (2000r + 100°) V.

Q2. For each set of voltages state whether or not the voltages form the balanced 3-phase set. If the set is balanced, state whether the phase sequence is positive or negative. If the set is not balanced explain why. a) va = 48 cos(314t 45°) V, vp = 48 cos (314t 165°) V, ve = 48 cos (314t + 75°) V. b) va 188 cos(250t + 60°) V, 188 cos 250t V, 188 cos (250t 60°) V. c) va = 426 cos 100r V, U 3D 462 cos(100t + 120°) V, ve = 426 cos(100t 120°) V. d) va 1121 cos (2000t 20°) V, %3D | = 1121 sin (2000t 50°) V, - 1121 cos (2000r + 100°) V.

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 2.23P: A single-phase source has a terminal voltage V=1200volts and a currentI=1530, which leaves the...

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