| 大庆油田电网朝四甲、乙线电流平衡保护误动分析及防止误动的措施 |
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| 引用本文： | 李永军,史春森,赵世春,丛文魁,肖鹏.大庆油田电网朝四甲、乙线电流平衡保护误动分析及防止误动的措施[J].黑龙江电力,2005,27(1):31-33. |
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| 作者姓名： | 李永军 史春森 赵世春 丛文魁 肖鹏 |
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| 作者单位： | 大庆石油管理局电力总公司电力调度中心,黑龙江,大庆,163454 |
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| 摘 要： | 电流平衡保护要求双回线并列运行，在平衡保护设计中有时用两回线合闸位置继电器的常开接点实现平衡保护直流电源闭锁功能，即单回线运行电流平衡保护自动退出运行。但由于继电器选型不当或继电器动作特性改变等原因，会引起平衡保护直流电源闭锁功能失灵，造成平衡保护误动。针对这种情况进行了认真分析，并提出了几种解决办法。
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| 关 键 词： | 线路保护 继电器 二次设备改造 变电所 防止误动措施 |
| 文章编号： | 1002-1663(2005)01-0031-03 |
| 修稿时间： | 2004年9月9日 |
Malfunction analysis and its countermeasures of current balance protection of ZHAOSI No.1 and No.2 line in Daqing oil field power system |
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| LI Yongjun,SHI Chunsen,ZHAO Shichun,CONG Wenkui,XIAO Peng.Malfunction analysis and its countermeasures of current balance protection of ZHAOSI No.1 and No.2 line in Daqing oil field power system[J].Heilongjiang Electric Power,2005,27(1):31-33. |
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| Authors: | LI Yongjun SHI Chunsen ZHAO Shichun CONG Wenkui XIAO Peng |
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| Abstract: | The achievement of current balance protection requires double circuit to run in parallel, closing function of balance protection DC source can sometimes be realized by using NO contact of closing relay of double circuit in the design of balance protection, that is, current balance protection of single circuit operation can automatically retreat from operation. However, the reasons of incorrect choice of relay type or action characters changing of relay can often bring about ineffectiveness of balance protection DC source closing function, which often cause unwanted operation. The paper analyzed them in details focusing on the cases above, and some means were presented. |
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| Keywords: | line protection relay the second modified equipment substation countermeasure against misoperation |
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