高压电器2011，Vol.47Issue(1)：58-61,4.
10/350μs冲击电流波测量用的磁心式自积分Rogowski线圈的研究
Self-integral Rogowski Coil for Measurement of 10/350 μs Impulse Current Waveform
宋健嘉 1陈景亮 1姚学玲1
作者信息
- 1. 西安交通大学电力设备电气绝缘国家重点实验室,西安710049
- 折叠
摘要
Abstract
Bandwidth of 10/350 μs direct lightning stroke current is from several Hz to 1 MHz, waveform distortion at low frequency section will occur when this current is measured by normal Rogowski coil due to its small self-inductance. In this study, a self-integral Rogowski coil with magnetic core was made. An experimental comparison with coaxial tube shunt was conducted on the platform of 10/350 μs impulse current generator. The results indicate that the self-inductance of the self-integral Rogowski coil is clearly enhanced, and its lower limit of frequency is extended because of the magnetic core. The theoretical bandwidth of the self-integral Rogowski coil is from 2.182 Hz to 2.924 MHz. 10/350 μs impulse current waveform below 82 kA can be measured exactly. The errors of rise time, real time and current amplitude are all below 2％.关键词
10/350μs直击雷电流波/磁心式自积分Rogowski线圈/能量频谱分析/频带Key words
10/350 μs direct lightning stroke current/ self-integral Rogowski coil with magnetic core/ energy frequency spectrum/ bandwidth分类
信息技术与安全科学引用本文复制引用
宋健嘉,陈景亮,姚学玲..10/350μs冲击电流波测量用的磁心式自积分Rogowski线圈的研究[J].高压电器,2011,47(1):58-61,4.
