Given a Y-connected 12 MVA synchronous generator rated at 15 kV. The armature resistance is 0.08 2 per phase. The data below regarding this generator were gathered. | (A) Open-circuit voltage (kV) line-to-line Air Gap Line voltage (kV) line-to-line Short-circuit current (A) 312 52 4.7 104 156 12,2 208 260 15.5 364 16.6 9.4 14.4 20 15.8 500 a. Determine the unsaturated value of the synchronous reactance b. Determine the saturated value of the synchronous reactance. If the synchronous generator is connected to the grid and the rated MVA is C. delivered at 0.85 lagging power factor, determine the internally generated electromotive force (E,).
Given a Y-connected 12 MVA synchronous generator rated at 15 kV. The armature resistance is 0.08 2 per phase. The data below regarding this generator were gathered. | (A) Open-circuit voltage (kV) line-to-line Air Gap Line voltage (kV) line-to-line Short-circuit current (A) 312 52 4.7 104 156 12,2 208 260 15.5 364 16.6 9.4 14.4 20 15.8 500 a. Determine the unsaturated value of the synchronous reactance b. Determine the saturated value of the synchronous reactance. If the synchronous generator is connected to the grid and the rated MVA is C. delivered at 0.85 lagging power factor, determine the internally generated electromotive force (E,).
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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