复用载波机保护命令传输的故障分析与对策  

Failure analysis and solution for protection command transmission of power line carrier machine

作　　者：李伟良[1] 阚鸣[2] 岳在春[3] 张海亮[3] 贾美健[3] 

机构地区：[1]国网信息通信有限公司,北京100761 [2]国家电网公司,北京100031 [3]中国电力科学研究院,北京100192

出　　处：《电力系统通信》2010年第1期37-42,共6页Telecommunications for Electric Power System

摘　　要：介绍了ABBETL581型电力线载波机在实际运行中的有关规定及电力线载波机的传输原理、基本功能、线路阻抗匹配、传输通道和保护编码传输方式,对故障现象进行了分析并提出了相应的解决办法。This paper introduces the standard of power line carrier wave machine ABB ETL851 according to the actual operational condition and analyzes the principles of power line transmission, impedance matching of power line, protecting channel and the transmission method for protection command. This essay also analysis the malfunction in protection command transmission and puts forward the solution as well.

关 键 词：通信传输 音转 编码命令 误码 

分 类 号：TN913.6[电子电信—通信与信息系统]