Electrical Stress Analysis of Switching Transients in 115 kV High Voltage Substation

Abstract:

This paper presents electrical stress analysis from capacitor bank switching in a 115 kV substation. The actual data of all equipment in substation are used in the simulated circuit by using ATP/EMTP program. The cases study focused on the determination of proper value of series reactor, effect of circuit breaker pole discrepancy on inrush current, line model selection and load variation. Electrical stress from energizing inrush current as well as transient recovery voltage and rate of rise of recovery voltage imposed on power circuit breaker during capacitor bank has been analyzed. The obtained results are used as guidelines for analysis of the electric stresses on substation equipment while capacitor banks are energized. Moreover, those results can be used to select the proper rating of circuit breakers to withstand the electric stresses in the transmission network.

• Periodical: Applied Mechanics and Materials (Volume 781)
• Pages: 333-336
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.781.333
• Online since: August 2015
• Authors: Ratana Kem*, Warunee Srisongkram, Phanupong Fuangpian, Thanapong Suwanasri
• Keywords: Electrical Stress, Inrush Current, Overvoltage, Power Circuit Breaker, Switching Transient

References

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[2] R. Smeets, L. Van Der Sluis, M. Kapetanovic, D. Peelo,A. Janssen, Switching in electrical transmission and distribution systems, John Wiley & Sons, Ltd., (2015).

DOI: 10.1002/9781118703618

[3] J.C. Das, Transients in Electrical Systems, Mc Graw Hill, New York, (2010).

[4] IEEE Standard C37. 012-2005, IEEE Application Guide for Capacitance Current Switching for AC High-Voltage Circuit Breakers, (2005).

DOI: 10.1109/ieeestd.2005.97974