发明名称 |
SOFTWARE-CONTROLLED EVALUATION OF FAULT CURRENTS FOR PROTECTION AND MONITORING SYSTEMS |
摘要 |
A fault current detection system is provided. The detection system detects a fault current generated on a conductive path supplying power to an electric device and prevents the fault current from being supplied to the electric device. In particular, the detection system contains a detector, a switch, and a controller. The detector detects a fault current generated on the conductive path and outputs a corresponding detection signal. The controller inputs the detection signal and determines predetermined characteristics of the fault current based on said detection signal. Then, the controller identifies the fault current as a first type of fault current based on the predetermined characteristics and sets a trigger current to a first trigger current value when the fault current is identified as the first type of fault current. Also, the controller outputs a control signal to the switch to instruct the switch to isolate the electric device from the conductive network when the fault current is greater than the trigger current. In addition, a software program performed by the fault current detection system is also provided. |
申请公布号 |
WO0195451(A3) |
申请公布日期 |
2002.05.10 |
申请号 |
WO2001EP06114 |
申请日期 |
2001.05.29 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
GIES, STEFAN;SCHMID, REINHARD |
分类号 |
H02H1/00;H02H3/00;H02H3/33 |
主分类号 |
H02H1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|