1. A 20 MVA, 3-phase, star-connected, 50-Hz, salient-pole has X = 1 p.u.; X = 0.65 p.u. and R₁ = 0.01 p.u. The generator delivers 15 MW at 0.8 p.f. lagging to an 11-kV, 50-Hz system. What is the load angle and excitation e.m.f. under these conditions? [18°; 1.73 p.u]

1. A 20 MVA, 3-phase, star-connected, 50-Hz, salient-pole has X = 1 p.u.; X = 0.65 p.u. and R₁ = 0.01 p.u. The generator delivers 15 MW at 0.8 p.f. lagging to an 11-kV, 50-Hz system. What is the load angle and excitation e.m.f. under these conditions? [18°; 1.73 p.u]

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

Chapter7: Symmetrical Faults

Section: Chapter Questions

Problem 7.3MCQ: The amplitude of the sinusoidal symmetrical ac component of the three-phase short-circuit current of...

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Question

1.
A 20 MVA, 3-phase, star-connected, 50-Hz, salient-pole has X = 1 p.u.; X = 0.65 p.u. and R₁ = 0.01
p.u. The generator delivers 15 MW at 0.8 p.f. lagging to an 11-kV, 50-Hz system. What is the load
angle and excitation e.m.f. under these conditions?
[18°; 1.73 p.u]

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