回波损耗测量法在高频通道故障处理中的应用  

Application of Return Loss Measurement Method in the Failure Process of High-frequency Channel

作　　者：张海华[1,2] 

机构地区：[1]南方电网调峰调频发电公司清远抽水蓄能电站建设管理局,广东清远511800 [2]华南理工大学电子与信息学院,广东广州510640

出　　处：《电力信息与通信技术》2013年第10期34-38,共5页Electric Power Information and Communication Technology

摘　　要：为了准确、快速地定位高频通道故障,确定高频通道加工设备是否完好,利用回波损耗测试法对高频通道的重要设备阻波器和结合滤波器进行故障判断。测试结果表明,将测得的回波损耗特性曲线与标称特性相比较,可以确定耦合设备或线路阻波器是否故障或电力线传输性能是否满足要求。通过实例表明,通过增加衰减器的方式能够使负载和线路达到阻抗匹配,增大回波损耗,从而改善通信通道。In order to accurately and quickly locate faults of high-frequency channel and identify whether or not the machining equipment of high-frequency channel is in good condition, this paper uses a return loss measurement method to identify faults of the line trapper and the combined filter that are important equipments of high-frequency channel. Test results show that whether the coupling equipment or the line trap is in good condition and whether the transmission performance of power line meet the needs can be determined by comparing the measured return loss characteristic curve with the nominal characteristics. This paper also shows that the way to increase attenuator can make the load impedance match to line and increase the return loss to improve the communication quality of high- frequency channels.

关 键 词：高频通道 回波损耗 阻波器 结合滤波器 

分 类 号：TM773[电气工程—电力系统及自动化]