电工技术学报2011，Vol.26Issue(11)：210-216,7.
一种改进的避雷器冲击电流试验回路参数设计方法
An Improved Designing Method of Metal Oxide Arrester Impulse Test Circuit Parameter
袁海燕 1吴剑强 2傅正财 1陈坚 1孙伟1
作者信息
- 1. 上海交通大学电力传输与功率变换控制教育部重点实验室,上海200240
- 2. 金华市防雷中心,金华321000
- 折叠
摘要
Abstract
When impulse current test is implemented for the lightning arrester,the circuit resistance changes in nonlinear characteristics,and its values under high and low current are differentiated greatly,so it is difficult to accurately estimate the output wave parameters.Through analyzing the impact of nonlinear EUT on the test circuit output waveform,an improved design method of test circuit for nonlinear EUT is proposed.The main idea is to design the circuit parameters in under-damping condition according to the EUT characteristics,charging capacitance and the applied impulse current parameters.Then the proposed method is compared with the previous method which is based on the critical damping condition.The advantage of this method compared to the previous is that it can provide an accurate range for the wave-adjusting resistance in fixed main capacitance.In the wave adjusting process,only the wave-adjusting resistance needs to be adjusted,which not only simplifies the wave adjusting process,but also improves the rate of successful wave adjusting.Finally,practical test is implemented to validate the rationality and practicability of the proposed method.关键词
冲击电流发生器/避雷器/冲击试验/波形调节Key words
Impulse current generator/lightning arrester/impulse test/waveform adjustment分类
信息技术与安全科学引用本文复制引用
袁海燕,吴剑强,傅正财,陈坚,孙伟..一种改进的避雷器冲击电流试验回路参数设计方法[J].电工技术学报,2011,26(11):210-216,7.
