| 110 kV变压器中性点零序保护配置方式研究 |
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| 引用本文： | 刘超,何林海,崔晓云,李春生,马晓炜.110 kV变压器中性点零序保护配置方式研究[J].电力系统保护与控制,2010,38(2):114-117. |
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| 作者姓名： | 刘超 何林海 崔晓云 李春生 马晓炜 |
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| 作者单位： | 新疆油田勘察设计研究院，新疆 克拉玛依 834000 |
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| 摘 要： | 目前大多数的1l0 kV变电所，只装设了中性点棒间隙而没有相应的保护。如果没有间隙保护，当终端变压器中性点间隙抢先放电而又无法持续放电时，带电源的中性点不接地变压器将无法脱离故障电网。针对上述问题，在分析变压器零序保护配置原理的基础上，对110 kV变压器中性点接地方式以及目前电网110 kV变压器零序保护设计存在的安全隐患等问题进行了探讨，提出改善变压器零序保护配合的措施。
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| 关 键 词： | 变压器 中性点 零序保护 |
Research on zero-sequence protection device arrangement method of neutral point of 110 kV transformer |
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| LIU Chao,HE Lin-hai,CUI Xiao-yun,LI Chun-sheng,MA Xiao-wei.Research on zero-sequence protection device arrangement method of neutral point of 110 kV transformer[J].Power System Protection and Control,2010,38(2):114-117. |
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| Authors: | LIU Chao HE Lin-hai CUI Xiao-yun LI Chun-sheng MA Xiao-wei |
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| Affiliation: | Xinjiang Oilfield Survey and Design Institute;Karamay 834000;China |
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| Abstract: | The most 110 kV substation are just installed with neutral point gap and without corresponding protection.If there is no use of protection gap,when terminal transformer neutral point gap discharge and the discharge can not be sustained,the transformer with the power of the neutral grounding will not be disconnected from the fault power grid.To solve these problems,b ased on the analysis of transformer zero-sequence protection configuration,modes of the 110 kV transformer neutral point grounding and security... |
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| Keywords: | transformer neutral point zero-sequence protection |
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