Direct transfer trip apparatus for use with an active pilot wire communications channel

作者： Shan Chyi Sun , Russell Woodbury Gonnam

DOI:

关键词: Electronic engineering 、 Circuit breaker 、 Line (electrical engineering) 、 Fault (power engineering) 、 Electromagnetic coil 、 Engineering 、 Upstream (networking) 、 Electrical engineering 、 Electric power system 、 Relay 、 Protective relay

摘要: Direct transfer trip apparatus for sharing a common active communication channel utilized signal between at least two electromechanical units which form current differential protective relay protecting one power line in system network is disclosed. Each unit includes an operating coil effecting interruption of through the protected when internal fault detected. The direct function induces signals to be transmitted either upstream or downstream from faulted section where breaker has failed open. These are supplied directly operate interrupt independent energization its corresponding coil. not only performs aforementioned function, but also permits disabling inadvertently. Accordingly, inadvertent by precluded during transmission over channel.