发明名称 |
Method and apparatus for detecting abnormal conditions of circuit breakers |
摘要 |
Abnormal conditions of a tank type gas circuit breaker are detected by driving a movable contact with a drive force and at a speed respectively lower than normal drive force and speed. Measuring units are mounted on various portions of a casing of the circuit breaker without disassembling the same and measured data are displayed for comparison.
|
申请公布号 |
US4433293(A) |
申请公布日期 |
1984.02.21 |
申请号 |
US19810246061 |
申请日期 |
1981.03.20 |
申请人 |
TOKYO SHIBAURA DENKI KABUSHIKI KAISHA |
发明人 |
AOYAGI, AKIRA;IKEDA, SHINICHI |
分类号 |
G01R31/00;H01H11/00;H01H33/00;(IPC1-7):G01R31/32 |
主分类号 |
G01R31/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|