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The synchronous generator in Figure 2 is operating at rated MVA and at . PU 5% above rated voltage when a bolted three-phase short circuit occurs at bus 1. (1)Draw the equivalent circuit of Figure 2;(2)Calculate subtransient fault current, subtransient generator and motor currents, neglecting prefault current (including per unit value and real value). ( T1 T2 bus2 bus 1 100MVA L +0+ ++ 10kV X=0.20 X=0.15 100MVA (base on 100MVA 10.5kV), 100MVA 10.5kV 100MVA 110kV/10.5kV 10.5kV/121kV 100MVA 10kV X=0.15 X=0.10 X=0.10 X=0.20 Figure 2 M M

The synchronous generator in Figure 2 is operating at rated MVA and at . PU 5% above rated voltage when a bolted three-phase short circuit occurs at bus 1. (1)Draw the equivalent circuit of Figure 2;(2)Calculate subtransient fault current, subtransient generator and motor currents, neglecting prefault current (including per unit value and real value). ( T1 T2 bus2 bus 1 100MVA L +0+ ++ 10kV X=0.20 X=0.15 100MVA (base on 100MVA 10.5kV), 100MVA 10.5kV 100MVA 110kV/10.5kV 10.5kV/121kV 100MVA 10kV X=0.15 X=0.10 X=0.10 X=0.20 Figure 2 M M

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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The synchronous generator in Figure 2 is operating at rated MVA and at . SU 5% above rated voltage when a bolted three-phase short circuit occurs at bus 1. (1)Draw the equivalent circuit of Figure 2;(2)Calculate subtransient fault current, subtransient generator and motor currents, neglecting prefault current(including per unit value and real value). ( T1 T2 bus2 bus 1 100MVA L +0+ ++ 10kV X=0.20 X=0.15 100MVA (base on 100MVA 10.5kV), 100MVA 10.5kV 100MVA 110kV/10.5kV 10.5kV/121kV 100MVA 10kV X=0.15 X=0.10 X=0.10 X=0.20 Figure 2 M M
Transcribed Image Text:The synchronous generator in Figure 2 is operating at rated MVA and at . SU 5% above rated voltage when a bolted three-phase short circuit occurs at bus 1. (1)Draw the equivalent circuit of Figure 2;(2)Calculate subtransient fault current, subtransient generator and motor currents, neglecting prefault current(including per unit value and real value). ( T1 T2 bus2 bus 1 100MVA L +0+ ++ 10kV X=0.20 X=0.15 100MVA (base on 100MVA 10.5kV), 100MVA 10.5kV 100MVA 110kV/10.5kV 10.5kV/121kV 100MVA 10kV X=0.15 X=0.10 X=0.10 X=0.20 Figure 2 M M
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