电气自动化
電氣自動化
전기자동화
ELECTRICAL AUTOMATION
2014年
2期
101-103
,共3页
陈瑞龙%钱勇%叶海峰%董越%江秀臣
陳瑞龍%錢勇%葉海峰%董越%江秀臣
진서룡%전용%협해봉%동월%강수신
变电站%中压交联聚乙烯电缆%局部放电%在线监测%高频电流传感器
變電站%中壓交聯聚乙烯電纜%跼部放電%在線鑑測%高頻電流傳感器
변전참%중압교련취을희전람%국부방전%재선감측%고빈전류전감기
substation%medium-voltage XLPE cable%partial discharge%on-line monitoring%high-frequency current transducer
局部放电检测是判断XLPE 电力电缆绝缘状况的重要手段。设计并开发了一套用于中压XLPE 电缆的局部放电在线监测系统，详细阐述了其工作原理、硬件组成、软件设计及实现方案。通过监测XLPE 电缆屏蔽层接地线中的高频电流信号，来分析评估XLPE 电缆的绝缘状况。现场运行结果显示，系统稳定可靠，能满足整个变电站中压XLPE 电缆绝缘监测的需要。
跼部放電檢測是判斷XLPE 電力電纜絕緣狀況的重要手段。設計併開髮瞭一套用于中壓XLPE 電纜的跼部放電在線鑑測繫統，詳細闡述瞭其工作原理、硬件組成、軟件設計及實現方案。通過鑑測XLPE 電纜屏蔽層接地線中的高頻電流信號，來分析評估XLPE 電纜的絕緣狀況。現場運行結果顯示，繫統穩定可靠，能滿足整箇變電站中壓XLPE 電纜絕緣鑑測的需要。
국부방전검측시판단XLPE 전력전람절연상황적중요수단。설계병개발료일투용우중압XLPE 전람적국부방전재선감측계통，상세천술료기공작원리、경건조성、연건설계급실현방안。통과감측XLPE 전람병폐층접지선중적고빈전류신호，래분석평고XLPE 전람적절연상황。현장운행결과현시，계통은정가고，능만족정개변전참중압XLPE 전람절연감측적수요。
Partial discharge detection is an important means to judge the situation of XLPE power cables insulation.This paper designs and develops a partial discharge online monitoring system used for the medium-voltage XLPE cable,and describes details on its working principle,hardware composition,software design and implementation schemes.By monitoring the high-frequency current signal in the grounding line of the shielded layers of the XLPE cables,this system analyzes and assesses the insulation of these cables.The result of on-site operation indicates that it is a stable,reliable system which can meet the requirement on insulation monitoring of medium-voltage XLPE cables of the whole sub-station.
