发明名称 |
Method and apparatus for remote testing of coordination of overcurrent protection devices in an electrical power system |
摘要 |
<p>Coordination of the overcurrent/time trip characteristics of a hierarchy of overcurrent protection devices (25a-g) is accomplished through a central tester (41) which establishes a pattern of test currents for the individual overcurrent protection devices which simulates a fault at a specified location in the power system (1). The individual assigned test currents are transmitted over a communications link (43) to the separate overcurrent protection devices (25a-g) where they are stored in memory (33a-g). The central tester (41) then broadcasts a test signal which simultaneously initiates testing of all of the overcurrent protection devices (25a-g) using the assigned test currents stored in memory. The trip times are recorded and reported back to the central tester (41) for analysis. <IMAGE></p> |
申请公布号 |
EP0780951(A2) |
申请公布日期 |
1997.06.25 |
申请号 |
EP19960118213 |
申请日期 |
1996.11.13 |
申请人 |
EATON CORPORATION |
发明人 |
KLANCHER, FRANK |
分类号 |
H02H3/04;H02H7/30;(IPC1-7):H02H7/30 |
主分类号 |
H02H3/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|