复用保护电力线载波机功率的选取原则  

Power selecting principle in multiplex protection power line carrier

作　　者：狄跃平 张剑 刘爱国 

机构地区：[1]贵州电力调度通信局,贵州贵阳550002 [2]许继昌南通信设备有限公司,河南许昌461000

出　　处：《电力系统通信》2008年第1期15-17,21,共4页Telecommunications for Electric Power System

摘　　要：220 kV及以上电压等级的很多电力线路使用电力线载波机传输高频保护信号。为了满足保护信号的传输要求,讨论了电力线载波机的功率选取标准和关键指标,通过计算说明了电力线载波机功率的选取原则,并指出了需要注意的问题,对实际工程中电力线载波机的功率选取和频率安排具有一定参考意义。PLC equipments are used to transmit high frequency protection signals on 220 kV and above power lines. In order to meet the requirements of protection signals transmission, this paper discusses the power selecting standard and key indexes of PLC,explains power selecting principle for PLC by calculation, and points out some problems which should be noticed. It has some reference value for selecting PLC power and frequency in projects.

关 键 词：电力线载波机 功率 脉冲噪声 最低接收电平 

分 类 号：TN913.6[电子电信—通信与信息系统] TM773[电子电信—信息与通信工程]