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| Discussion on the Single-phase Permanent Fault Caused by Current Transformer Below to the Switch of 3/2 Wiring Way |
| Liao Liqian, Liu Yang |
| Sichuan Electric Power Corporation Maintenance Company , Chengdu 610000 |
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Abstract When the single-phase permanent fault caused by current transformer below to the switch of 3/2 wiring way occurs, the exits to the circuit and the buses will be started for the purpose of protection. Thus, there will be a mismatch between the circuit protection and bus protection. This paper deeply analyzes a true case happened to a transformer substation of 500kV and contributes to be a reference to the substations installed with circuit-breaker protection equipment of NARI RCS-921A or RCS-921C.
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Published: 26 June 2014
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| Cite this article: |
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Liao Liqian,Liu Yang. Discussion on the Single-phase Permanent Fault Caused by Current Transformer Below to the Switch of 3/2 Wiring Way[J]. Electrical Engineering, 2013, 14(02): 71-73.
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| URL: |
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http://dqjs.cesmedia.cn/EN/Y2013/V14/I02/71
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[1] 南瑞RCS-921A、RCS-921C断路器失灵保护及自动重合闸装置技术和使用说明书[Z].
[2] 南瑞RCS-901系列超高压线路保护装置技术和使用说明书[Z].
[3] 南瑞RCS-915E型微机母线保护装置技术和使用说明书[Z].
[4] 国家电网公司继电保护培训教材(上)、(下)[Z]. |
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2013, Vol. 14 
