Analyze power system as shown in Fig. 3 subject to (a) Line to Ground bolted fault (b) Line to Line Bolted Fault occurred at bus 2. Compare values of symmetrical and unsymmetrical values of fault currents and fault voltage at fault bus under (a) Line to Ground Bolted Fault (b) Line to Line Bolted Fault. Pre-fault voltages can be assumed as 1+ 0j =1< 0° per unit. Transformers T1 and T2 have 345 Y / 20 A KV Transformation Ratio. Power Plant – I Power Plant – II (2) 3) Generator Generator Transmission Line 1

Analyze power system as shown in Fig. 3 subject to (a) Line to Ground bolted fault (b) Line to Line Bolted Fault occurred at bus 2. Compare values of symmetrical and unsymmetrical values of fault currents and fault voltage at fault bus under (a) Line to Ground Bolted Fault (b) Line to Line Bolted Fault. Pre-fault voltages can be assumed as 1+ 0j =1< 0° per unit. Transformers T1 and T2 have 345 Y / 20 A KV Transformation Ratio. Power Plant – I Power Plant – II (2) 3) Generator Generator Transmission Line 1

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 7.15P

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