"A 3-phase, 23 kv, 60 Hz synchronous generator is connected in star and its neutral point is earthed while reactance pe phase is 4 ohm. The generator is connected to a bus bar through a circuit breaker. The distributed capacitance up to circuit breaker between phase and neutral is 0.01 micro Farad. Determine the following: (i) Peak re-striking voltage (in kV) across the contact of circuit breaker, (ii) Frequency of oscillations (in kHz); (iii) Time to occurs first peak re-striking voltage (in micro second) and (iv) The average rate of rise of re-striking voltage (in mega volts per second)."
"A 3-phase, 23 kv, 60 Hz synchronous generator is connected in star and its neutral point is earthed while reactance pe phase is 4 ohm. The generator is connected to a bus bar through a circuit breaker. The distributed capacitance up to circuit breaker between phase and neutral is 0.01 micro Farad. Determine the following: (i) Peak re-striking voltage (in kV) across the contact of circuit breaker, (ii) Frequency of oscillations (in kHz); (iii) Time to occurs first peak re-striking voltage (in micro second) and (iv) The average rate of rise of re-striking voltage (in mega volts per second)."
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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Subject name: Power System Protection
Transcribed Image Text:"A 3-phase, 23 kV, 60 Hz synchronous generator is connected in star and its neutral point is earthed while reactance per
phase is 4 ohm. The generator is connected to a bus bar through a circuit breaker. The distributed capacitance up to
circuit breaker between phase and neutral is 0.01 micro Farad. Determine the following: (i) Peak re-striking voltage (in
kV) across the contact of circuit breaker, (ii) Frequency of oscillations (in kHz); (iii) Time to occurs first peak re-striking
voltage (in micro second) and (iv) The average rate of rise of re-striking voltage (in mega volts per second)."
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