继电保护信号在SDH光纤自愈网中的传输

光纤通道具有传输质量高、误码率低、频带宽、传输信息量大、抗干扰能力强等特点,因此用光纤传输继电保护及安全自动装置信息在电力通信中越来越成为一种普遍的应用方式。文章总结了继电保护信号接入光纤自愈网的方式及SDH自愈网保护类型;结合三峡地区情况,分析了自愈环保护类型在实际中的应用;通过对通道部分指标的测试,说明当光纤自愈网各项测试指标达标时,光纤通道能够满足传输继电保护信号的要求。

Transmission of relay protection signal via SDH optical fiber self-healing network

With the advantages of high transmission quality,low BER,broad band,large information transmission quantity and high anti-interference capacity,optical fiber communication technology are widely used to transmit relay protection and automatic equipment signals in power communication network.This paper introduces the access method of relay protection signal to optical fiber self-healing network and the type of protection,and analyses the application of self-healing ring in practice on the basis of the case in...