The positive-sequence reactances for the power system shown below are in per unit on a common MVA base. Resistances are neglected and the negative-sequence impedances are assumed to be the same as the positive-sequence impedances. The zero sequence reactances of each component in per-unit are given on the table below. 1. T1 1 2 T2 j0.6 X=j0.05 j0.15 j0.05 X=j0.05 G1 0.02 G2 0.02 3 j0.3 T1 0.15 T2 0.05 Obtain the Thevenin sequence impedances for the fault at bus 1 and compute the fault current in per unit for the following faults: L1(0.6) 0.80 L2(0.3) 0.50 A bolted three-phase fault at bus 1. A bolted single line-to-ground fault at bus 1. A bolted line-to-line fault at bus 1. a. b. C. A bolted double line-to-ground fault at bus 1. d.
The positive-sequence reactances for the power system shown below are in per unit on a common MVA base. Resistances are neglected and the negative-sequence impedances are assumed to be the same as the positive-sequence impedances. The zero sequence reactances of each component in per-unit are given on the table below. 1. T1 1 2 T2 j0.6 X=j0.05 j0.15 j0.05 X=j0.05 G1 0.02 G2 0.02 3 j0.3 T1 0.15 T2 0.05 Obtain the Thevenin sequence impedances for the fault at bus 1 and compute the fault current in per unit for the following faults: L1(0.6) 0.80 L2(0.3) 0.50 A bolted three-phase fault at bus 1. A bolted single line-to-ground fault at bus 1. A bolted line-to-line fault at bus 1. a. b. C. A bolted double line-to-ground fault at bus 1. d.
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
Chapter3: Power Transformers
Section: Chapter Questions
Problem 3.29P: Consider three ideal single-phase transformers (with a voltage gain of ) put together as ...
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