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| Cause analysis of protection operation of loop-closed operation due to 110kV line fault |
| Xu Xingfa |
| Shaoguan Power Supply Bureau, Guangdong Power Grid Corporation, Shaoguan, Guangdong 512026 |
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Abstract For a 110kV line protection action and intelligent standby self-closing closing action, resulting in the system to run the ring way to conduct a detailed analysis. Through the inspection of the scene of the accident, analysis of operating waveform of protective device. The lightning impulse 110kV line caused by the transformer neutral discharge gap breakdown is caused by 110kV line zero sequence current I section protection, put forward some measures reclosing needs with a reasonable time and prepared from the cast action and prevent similar situations. It has a good reference for the implementation of power system protection and automatic safety devices anti-accident measures.
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Received: 16 November 2017
Published: 19 June 2018
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| Cite this article: |
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Xu Xingfa. Cause analysis of protection operation of loop-closed operation due to 110kV line fault[J]. Electrical Engineering, 2018, 19(6): 122-126.
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| URL: |
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http://dqjs.cesmedia.cn/EN/Y2018/V19/I6/122
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2018, Vol. 19 
