SNCP倒换机制在线路保护通道中的应用分析  

Application Analysis of SNCP Switching Mechanism in Line Protection Channel

作　　者：赵必游 郭苑灵 

机构地区：[1]茂名供电局,广东茂名525000

出　　处：《电力信息与通信技术》2013年第8期91-94,共4页Electric Power Information and Communication Technology

摘　　要：随着电力通信技术的发展,子网连接保护(SNCP)已广泛应用于线路保护复用通道。文章基于纵联距离(方向)保护对通信通道质量的要求,旨在探讨SNCP属性配置对该类型通道的影响。通过定性分析SNCP的工作原理及倒换机制,结合通道维护实践经验,给出了SNCP应用于复用保护通道应注意的问题,并指出SNCP属性配置不正确将可能导致保护装置频繁告警。结论对电力通信网络的规划建设及保护复用通道运行维护具有应用参考价值。With the development of electric communication technology, SNCP （Sub-Network Connection Protection） has been widely used in line protection multiplexing channels. According to the communication channel performance demand of line distance （direction） pilot protection, this paper discusses the effects of SNCP attribute configuration on channels. By qualitative analysis of working principle and switching mechanism of SNCP and with the aid of maintenance experience, some noted issues of application of SNCP to the multiplexing channel protection are given. Further this paper draws a conclusion that the wrong attribute configuration of SNCP may result in frequent alarming of line protection equipments, which will provide a reference for the plan and construction of electric power communication network as well as for operation and maintenance of line protection channels.

关 键 词：子网连接保护 倒换机制 线路保护 复用通道 

分 类 号：TM733[电气工程—电力系统及自动化]