摘要
探讨同杆双回线路跨线故障的保护解决方案,介绍纵联保护信号传输方式和特点。结合某工程实例,剖析同杆双回线路保护配置和保护远传信号通道选择的思路。介绍一种载波机与保护装置之间实现3+1命令方式的接口回路。
The relay protection solutions of cross line fault over double-circuit lines on the same tower are discussed, the protection signal transmission modes and technique characteristics of longitudinal differential protection are introduced.For a practical project, ideas of scheming the relay protection for double-circuit lines on the same tower and choosing the telecommunication channel are analysed. An interface circuit between power line carrier and relay protection device is presented to implement 3+1 command mode.
出处
《继电器》
CSCD
北大核心
2004年第13期40-42,47,共4页
Relay
关键词
电力系统
继电保护
输电线路
同杆双回线路
线路保护
double-circuit lines on the same tower
longitudinal differential protection
optical fiber
