便携式局部放电在线检测系统的研制  

Development of Portable Partial Discharge On-line Monitoring System

作　　者：于钦学[1] 任文娥[1] 李文杰 

机构地区：[1]西安交通大学电气绝缘研究中心,西安710049 [2]武汉华瑞电力科技股份有限公司,湖北武汉430074

出　　处：《陕西电力》2012年第9期34-37,58,共5页Shanxi Electric Power

摘　　要：研制了1套基于脉冲电流法的便携武电流互感器局部放电在线检测系统。主要介绍研制系统的硬件组成单元(检测单元、无线传输单元)、抗干扰软件的原理和实现方法。根据开发的便携武局部放电在线检测系统在山西某220 kV变电站的应用情况,以及对实际测量的数据分析,表明该系统具有良好的稳定性和一定的灵敏度,能够为互感器运行状态提供判定依据。A set of portable partial discharge on-line monitoring system for current transformer based on pulse current method is developed, and the hardware components of the system as well as anti-interference principle and implementation method for the software is also introduced. The application of the system in a 220 kV substation and the analysis of actual measurement data shows that the system operates steadily, has high sensitivity, and can provide credible information for CT insulation diagnosis.

关 键 词：局部放电 脉冲电流法 在线检测 小波去噪 极性鉴别 

分 类 号：TM835[电气工程—高电压与绝缘技术]