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Q2 / For the connection of Figure 2, in terms of switching surge, when the second terminal of CB is shorting the circuit to the earth, answer the following questions: 1- Plot the equivalent electrical RLC circuit expressing the circuit case. 2- Explain the effect of R, L, and C values on the shape of generated oscillation. 3- Determine the relative attenuation occurring in three cycles in the overvoltage surge set up on a 75 kV cable fed through an air-blast circuit breaker when the breaker opens on a system short circuit. The network parameters are as follows: R= 8.5 0, L = 7.1mH, C= 0.0516 µF

Q2 / For the connection of Figure 2, in terms of switching surge, when the second terminal of CB is shorting the circuit to the earth, answer the following questions: 1- Plot the equivalent electrical RLC circuit expressing the circuit case. 2- Explain the effect of R, L, and C values on the shape of generated oscillation. 3- Determine the relative attenuation occurring in three cycles in the overvoltage surge set up on a 75 kV cable fed through an air-blast circuit breaker when the breaker opens on a system short circuit. The network parameters are as follows: R= 8.5 0, L = 7.1mH, C= 0.0516 µF

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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Q2 / For the connection of Figure 2, in terms of switching surge, when the second terminal of CB is shorting the circuit to the earth, answer the following questions: 1- Plot the equivalent electrical RLC circuit expressing the circuit case. 2- Explain the effect of R, L, and C values on the shape of generated oscillation. 3- Determine the relative attenuation occurring in three cycles in the overvoltage surge set up on a 75 kV cable fed through an air-blast circuit breaker when the breaker opens on a system short circuit. The network parameters are as follows: R= 8.5 0, L = 7.1mH, C= 0.0516 µF CB = Om VLC Restriking voltage (expanded time scale) R 21 Maximum Voltage V = 1.633 x Surge voltage v(t) = V[1 -e cos ont] Arc voltage Time System voltage CB open circuit Fault current Figure: 2
Transcribed Image Text:Q2 / For the connection of Figure 2, in terms of switching surge, when the second terminal of CB is shorting the circuit to the earth, answer the following questions: 1- Plot the equivalent electrical RLC circuit expressing the circuit case. 2- Explain the effect of R, L, and C values on the shape of generated oscillation. 3- Determine the relative attenuation occurring in three cycles in the overvoltage surge set up on a 75 kV cable fed through an air-blast circuit breaker when the breaker opens on a system short circuit. The network parameters are as follows: R= 8.5 0, L = 7.1mH, C= 0.0516 µF CB = Om VLC Restriking voltage (expanded time scale) R 21 Maximum Voltage V = 1.633 x Surge voltage v(t) = V[1 -e cos ont] Arc voltage Time System voltage CB open circuit Fault current Figure: 2
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