摘要
笔者在实验室对真空开关灭弧室真空度停电测量新方法"发射电流衰减法"和在线检测新方法"屏蔽罩磁控放电法"进行了实验研究。结果表明:"!在将真空开关的真空间隙调整为0.8 mm的小间隙以后,不需要施加磁场,使用发射电流衰减法可以停电测量灭弧室内的真空度;#"研制出具有良好内外绝缘的励磁线圈以后,使用磁控放电法能以6×10-2 Pa的灵敏度在线检测真空开关真空度。
Two new methods were researched experimentally for on-site and on-line measurement of vacuum degree in vaeuuin interrupters. The experimental results show that: (1) the emission current decay method can be used to determine vacuum degree on-site without imposing magnetic field while the vacuum gap distance is adjusted to 0.8 ram; (2)the magnetron method can be adopted to sensitively detect the vacuum degree onqine in 6×10^-2Pa if an excitation coil with favorable insulation structure is available,
出处
《高压电器》
EI
CAS
CSCD
北大核心
2007年第6期401-404,408,共5页
High Voltage Apparatus
基金
国家自然科学基金项目(50377024)
关键词
灭弧室
真空度
测量
vacuum interrupters
vacuum degree
measurement