发明名称 |
Signal quality monitor for protective relay system |
摘要 |
A signal quality monitor, and a protective relay system using the monitor, which utilizes both AC and DC signals from the receiver agc stage to monitor a plurality of different signal parameters. A signal responsive to the noise in the communication channel which transmits at least one of the protective relay signals used in a protective relay comparison function, is also used in the trip circuits of the associated circuit interrupter to continuously adapt or modify the trip level in response to channel noise.
|
申请公布号 |
US4524446(A) |
申请公布日期 |
1985.06.18 |
申请号 |
US19820397753 |
申请日期 |
1982.07.13 |
申请人 |
WESTINGHOUSE ELECTRIC CORP. |
发明人 |
SUN, SHAN C.;MCGIVERN, JAMES P. |
分类号 |
H02H3/28;H02H1/00;H04B3/06;H04B3/46;(IPC1-7):H04L1/20 |
主分类号 |
H02H3/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|