一起收发信机旁路切换回路改进实例Case Analysis on Bypass Transfer Circuit Improvement of Transceiver
陈东楚,吴建伟
CHEN Dong-chu,WU Jian-wei(Zhejiang Electric Transmission & Transformation Engineering Corporation
摘要(Abstract)：
针对某变电站线路保护改造期间,发现当同一收发信机配合的线路保护和旁路保护采用不同的保护装置时,远方启信回路失配,出现高频保护不能有效运行的缺陷,提出相应的改进接线,使线路保护在正常状态或在旁路代状态下,均能实现与收发信机匹配,解决了高频保护不能正常运行的问题。
In line protection improvement in a substation,it is found that the line protection and bypass protection adopt different configurations,which causes logic circuit mismatch of remote start signal and consequently operation failure of high frequency protection.The paper proposes a wiring scheme for improvement,which enables the line protection to match the transceiver in normal conditions or bypass lines,and thereby operation failure of high frequency protection is handled.
关键词(KeyWords)：
高频保护;收发信机;旁路代线路;切换回路
high frequency protection;transceiver;bypass line;switching circuits
基金项目(Foundation):
作者(Author):
陈东楚,吴建伟
CHEN Dong-chu,WU Jian-wei(Zhejiang Electric Transmission & Transformation Engineering Corporation
DOI: 10.19585/j.zjdl.2013.03.010