大尺寸磁心式局部放电电流传感器的研究  

Study of Large-scale Magnetic Core Current Sensors for Partial Discharge

作　　者：方琼[1] 王凯[1] 徐阳[1] 曹晓珑[1] 

机构地区：[1]西安交通大学电气绝缘国家重点实验室,西安710049

出　　处：《高电压技术》2002年第9期24-25,36,共3页High Voltage Engineering

摘　　要：介绍了大尺寸铁氧体磁心的分段组合式脉冲电流传感器。鉴于大尺寸传感器耦合系数比较低 ,提出了一种基于脉冲前沿响应的传感器等效电路 ,分析了它的转移阻抗函数 ,并用软件对电路进行了仿真。This paper introduces large scale block current sensors with ferrite core. Since the coupling coefficient of large scale sensors is low, the sensors equivalent circuit based on response of pulse front is put forward, and analysis of its transiting impedance as well as simulation with OrCAD software are provided. Finally, response of partial discharge is supplied after the sensors were installed on flanges of high voltage bushings in a power transformer that is in service.

关 键 词：大尺寸磁心式 局部放电 电流传感器 

分 类 号：TM835.4[电气工程—高电压与绝缘技术] TP212[自动化与计算机技术—检测技术与自动化装置]