In a short-circuit test on a 3-pole, 110 kV circuit breaker. Power factor of the fault= 0.4. Recovery voltage= 0.95 times (full line voltage) The breaking current was symmetrical the restriking transient had a natural frequency of 15000 c/s. Determine the average rate of rise of restriking voltage. (The natural is grounded and the fault involves earth). Explain in details.

In a short-circuit test on a 3-pole, 110 kV circuit breaker. Power factor of the fault= 0.4. Recovery voltage= 0.95 times (full line voltage) The breaking current was symmetrical the restriking transient had a natural frequency of 15000 c/s. Determine the average rate of rise of restriking voltage. (The natural is grounded and the fault involves earth). Explain in details.

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 7.17P

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