220kV光纤纵联保护中旁路保护代线路保护的若干问题  

Problems in Replacement of Line Protection by Bypass Protection in Pilot Protection of 220 kV Optic Fiber

作　　者：曾子县[1] 

机构地区：[1]广东电网公司东莞供电局,广东东莞523120

出　　处：《广东电力》2011年第8期44-46,共3页Guangdong Electric Power

摘　　要：针对目前220kV电网中存在线路保护与旁路保护型号不一致的情况,对光纤纵联保护中旁路保护代线路保护的切换回路设计、保护配合、运行操作等问题进行研究,提出应根据旁路保护的收发信方式设计线路保护的旁路代收发信回路,根据被代线路保护的型号对旁路保护的保护方式、信道形式、信号传输方式和同杆双回运行方式进行整定,指出旁路保护代线路保护的操作方法和注意事项。Aiming at nonconformity in types between line protection and bypass protection in present 220 kV power grids, the paper investigates design of switching circuit, protection match as well as operation and running of replaced line protection by bypass protection in pilot protection of optic fiber. It is proposed that replaced messaging circuit of line protection should be designed in accordance to messaging mode of bypass protection; protection mode, channel type, signal transmission type and operation mode of double circuit on the same tower of bypass protection are set on the basis of type of replaced line protection. Operational approach for replacement of line protection by bypass protection and precautions are indicated.

关 键 词：继电保护 光纤纵联保护 旁路保护 线路保护 光纤信道 

分 类 号：TM773[电气工程—电力系统及自动化]