Suzhou Electric Appliance Research Institute
期刊號: CN32-1800/TM| ISSN1007-3175

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三相XLPE電力電纜多傳感器聯(lián)合監(jiān)測方法的研究

來源:電工電氣發(fā)布時間:2016-03-25 08:25 瀏覽次數(shù):777

三相XLPE電力電纜多傳感器聯(lián)合監(jiān)測方法的研究 

張琦,夏向陽,程莎莎 
長沙理工大學(xué) 電氣與信息工程學(xué)院,湖南 長沙 410114 
 

摘 要:針對三相XLPE 電纜接地磁感應(yīng)電流極小的特點,提出了一種基于接地線電流法的多傳感器聯(lián)合監(jiān)測方法,闡述了該方法的實現(xiàn)原理,給出了電纜在線監(jiān)測裝置的具體實現(xiàn)途徑。仿真結(jié)果表明該方法可有效反映電纜的局部絕緣故障,且通過分析各監(jiān)測點接地電容電流還可確定局部故障所處位置,對于三相XLPE 電力電纜的絕緣監(jiān)測具有一定的參考價值。
關(guān)鍵詞:三相XLPE 電力電纜;多傳感器聯(lián)合監(jiān)測;接地電容電流;在線監(jiān)測裝置
中圖分類號:TM247 文獻標識碼:A 文章編號:1007-3175(2013)09-0048-04


Study on Multi-Sensor Joint Monitoring Method of Three-Phase Cross Linked Polyethylene Power Cable 

ZHANG Qi, XIA Xiang-yang, CHENG Sha-sha 
College of Electrical and Information Engineering, Changsha University of Science & Technology, Changsha 41 0114 , China 
 

Abstract: Aiming at the character of three-phase cross linked polyethylene (XLPE) power cable that the grounding magnet induction current is very little, this paper raised a multi-sensor joint monitoring method based on grounding line current and described the realization principle of the method, giving the actual realization way of cable online monitoring device. Simulation analysis shows that this method can effectively reflect partial insulation fault of the cable. The local fault location was determined by analysis of every monitoring point grounding capacitance current, which provides certain reference value for the insulation monitoring of three-phase XLPE power cable.
                Key words: three-phase cross linked polyethylene power cable; multi-sensor joint monitoring; grounding capacitance current; on-line monitoring device


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