LI Guo-liang(李国亮), XIA Wen-hua(夏文华), LI Wei-wei（李微微）
(College of Information and Electrical Engineering，Shandong University of Science and Technology, Qingdao 266590, China)
Abstract：To verify a vacuum breaker’s feasibility, when a transformer substation chooses a vacuum circuit breaker, it takes two different actual operational ways to cut off a transformer. This paper, using the power system computer aided design/ electro magnetic transient in DC system (PSCAD/EMTDC) software, simulates the substation system and studies transient recovery voltage (TRV) caused by the two different ways which can cut off a with load transformer or a no-load transformer. Simulation and calculation results show that TRV indexes of the first way are much higher than that of the second one, and their TRV indexes are both in a permissible range. The breaker is proved to be available. Besides, this paper proves that paralleling resistance has a good effect when the indexes exceed the standard. The resistance value depends on specific circumstances.
Key words：transient recovery voltage(TRV)； power system computer aided design/electro magnetic transient in DC system (PSCAD/EMTDC)； transformer； vacuum circuit breaker
CLD number： TM762 Document code： A
Article ID： 1674-8042(2012)04-0393-04 doi： 10.3969/j.issn.1674-8042.2012.04.019
References
[1] LI Wei, LI Yu-chun, YANG Hai-fan, et al. Design of low voltage simulation apparatus for getting prospective transient recovery voltage. High Voltage Engineering, 2006, 32(8): 33-35.
[2] Helmer J, Lindmayer M. Mathematical modeling of the high frequency behavior of vacuum interrupters and comparison with measured transients in power systems. Proc. of IEEE 17th International Symposium on Discharges and Electrical Insulation in Vacuum, 1996, 1: 323-331.
[3] Dufournet D, Montillet G E. Transient recovery voltages requirements for system source fault interrupting by small generator circuit breakers. IEEE Trans. on Power Delivery, 2002, 17(2): 474-478.
[4] Wagner C L, Smith H M. Analysis of transient recovery voltage (TRV) rating concepts. IEEE Trans. on Power Apparatus and Systems, 1984, 103(11):3354-3363.
[5] Sheng B L, van der Sluis L. Comparison of synthetic test circuits for ultra high voltage circuit breakers. IEEE Trans. on Power Delivery, 1996, 11(4): 1810-1815.
[6] Sheng B L, van der Slius L. A new synthetic test circuit for Ultra-high voltage circuit breakers. IEEE Trans.on Power Delivery, 1997, 12(4): 1514-1519.
[7] Sheng B L, van der Slius L. The influence of the arc voltage in synthetic test circuits. IEEE Trans. on Power Delivery, 1995, 10(1): 274-279.
[8] LIU Ping, YAO Si-li, DU Wei, et al. Application of artificial line to short-line fault interrupting test for high voltage circuit breakers. High Voltage Apparatus, 2008, 44(6): 558-561.
[9] XU Yan-fei, ZHANG Gui-hong, WANG An, et al. Study on algorithms for waveform parameters of transient recovery voltage. High Voltage Apparatus, 2007, 43(3): 212-213, 217.
[10] CHEN Shui-ming, XU Wei, YANG Peng-cheng, et al. Characteristics of transient recovery voltage of 66 kV circuit breaker in 500 kV substation. High Voltage Engineering, 2009, 35(6): 1301-1307.
[11] Zhao Zhi-da. High-voltage technology. China Electric Power Press, 2006.
