扩散型真空电弧的弧后电流  

The Post-Arc Current of the Diffused Arc in a Vacuum Circuit Breaker

作　　者：邹积岩[1] 程礼椿[1] 伍小生 

机构地区：[1]华中理工大学电力工程系

出　　处：《华中理工大学学报》1993年第6期68-71,共4页Journal of Huazhong University of Science and Technology

基　　金：霍英东教育基金资助项目

摘　　要：研究了一种新的弧后电流测试方法;以较高的灵敏度和抗干扰能力测得了扩散型真空电弧的弧后电流值;给出了计算与实测的比较结果;分析了不同电源条件下的弧后电流.文中指出,扩散型真空电弧的分断极限是由电击穿决定的,而不由弧后电流引起的热击穿所定.This paper presents a new method for post-arc corrent measurement. It is suitable for diffused vacuum arcs and of fairly high sensitivity and good anti-interference ability. Meas ured and calculated results of the post-arc current level under different recovery voltage conditions are given. It has also been found that diffused vacuum arcs with a high current gives a low post-arc current and that the limitation to the breaking capacity for diffused arcs is due to electric field breakdown rather than to thermo-breakdown by post-arc current.

关 键 词：真空开关 扩散型 电弧 弧后电流 

分 类 号：TM564.2[电气工程—电器]