| 母线保护中母联死区故障保护逻辑的研究 |
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| 引用本文： | 任立辉,樊文东,程天保,李秀红.母线保护中母联死区故障保护逻辑的研究[J].电力系统保护与控制,2006,34(10):12-14. |
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| 作者姓名： | 任立辉 樊文东 程天保 李秀红 |
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| 作者单位： | 平顶山姚孟第二发电有限公司 河南平顶山467031(任立辉)，许继电气保护及自动化事业部 河南许昌461000(樊文东，程天保，李秀红) |
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| 摘 要： | 分别阐述了双母线微机保护中母联带单CT和双CT时,发生母线故障和死区故障时的保护逻辑,同时指出它们各自的优缺点。针对现有的母联双CT交叉接线方式,提出一种能够正确判别是母线故障还是死区故障的方法,同时对母联死区故障的保护原理提出一种改进措施。
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| 关 键 词： | 双母线 母联 母线故障 死区故障 |
| 文章编号： | 1003-4897(2006)10-0012-03 |
| 收稿时间： | 2005-09-16 |
| 修稿时间： | 2005-10-10 |
Research of busbar protection's logic on dead-zone fault of coupler |
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| REN Li-hui, FAN Wen-dong, CHENG Tian-bao, LI Xiu-hong.Research of busbar protection''''s logic on dead-zone fault of coupler[J].Power System Protection and Control,2006,34(10):12-14. |
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| Authors: | REN Li-hui FAN Wen-dong CHENG Tian-bao LI Xiu-hong |
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| Affiliation: | 1. Pingdingshan Yaomeng Second Generation Co. ,Ltd, Pingdingshan 467031, China; 2. XJ Electric Protection and Automation Business Department, Xuchang 461000, China |
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| Abstract: | This paper describes differential protection's logic on busbar or dead-zone fault when coupler has one or two TAs,as well as their advantages and limitations.Aiming at present across connective mode of the coupler with two TAs,a scheme that can rightly judge busbar or dead-zone fault is presented and an improved method on protection principle of dead-zone fault is proposed. |
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| Keywords: | duplicate busbar coupler busbar fault dead-zone fault |
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