多手段联合精确定位在电缆GIS终端局放检测中的应用
Application of Multi-measure Joint Precise Positioning in Cable GIS Terminal Partial Discharge Detection
周晶晶 1张伟 1李春辉1
作者信息
- 1. 国网上海市电力公司电缆分公司,上海 200072
- 折叠
摘要
局放检测是城市高压电缆状态检测的重要手段.鉴于电缆 GIS终端结构复杂、变电站环境干扰众多等情况,提出了综合高频法、特高频法、超声波法的多手段联合检测方法,以确定局放类型,并通过同源性分析和排除干扰后,对局放进行了精确定位,可为消缺策略的制定提供详尽的依据.以某一 110 kV 电缆 GIS终端的局放精确定位为例,为类似电缆 GIS终端局放信号的检测和定位提供借鉴与参考.
Abstract
Partial discharge detection technology is an important method for assessing the condition of urban high-voltage cables.The complex structure of cable GIS terminals and interference from the substation environment present challenges.A multi-measure combined detection approach,utilizing high frequency,ultra-high fre-quency,and ultrasonic methods,is proposed to identify the type of partial discharge.Through homology analysis and interference elimination,precise localization was achieved,providing a detailed reference for developing elimi-nation strategies.A case involving the accurate localization of a 110kV cable GIS terminal is illustrated to offer guidance for similar signal detection and location in cable GIS terminals.
关键词
局部放电/多手段联合精确定位/电缆GIS终端Key words
partial discharge/multi-measure joint precise positioning/cable GIS terminal引用本文复制引用
出版年
2024
NETL
NSTL
万方数据