发明名称 |
ARC FAULT DETECTOR APPARATUS, MEANS AND SYSTEM |
摘要 |
A sputtering arc fault detector (10) for a system having an electrical conductor (14) carrying current to a load. The sputtering arc fault detector includes a current monitor (64) coupled to the conductor for generating a variable signal responsive to behavior of the current in the conductor. A level detector (58) is coupled to the monitor and generates a first pulse when the variable signal exceeds a first level. A step detector (62) is coupled to the monitor and is responsive to rapid step increases of the variable signal. The step detector generates a second pulse when the variable signal exceeds a second level. An arc verifier (48), which is coupled to the level detector and the step detector, combines the first and second pulses, and generates a fault signal when the combined pulses exceed a third level.
|
申请公布号 |
CA2290223(A1) |
申请公布日期 |
2000.05.23 |
申请号 |
CA19992290223 |
申请日期 |
1999.11.19 |
申请人 |
SIEMENS ENERGY & AUTOMATION, INC. |
发明人 |
JOHNSON, ELTON C.;DOLLAR, CHARLES RANDALL II |
分类号 |
H02H1/00;H02H3/44;(IPC1-7):G01R31/02 |
主分类号 |
H02H1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|