脉冲编码调制装置在光纤保护双通道切换过程中的动作解析

华电技术 ›› 2012, Vol. 34 ›› Issue (5): 52-55.

脉冲编码调制装置在光纤保护双通道切换过程中的动作解析

侯超军，董翠芳，张宁

山西省电力公司超(特)高压输变电分公司，山西太原030032

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-05-25 发布日期:2012-05-25

Analysis on action of PCM device in switch over process of dual channels of optical fiber protection

HOU Chaojun, DONG Cuifang, ZHANG Ning

Shanxi Extra (ultra) High Voltage Company, Shanxi Electric Power Company, Taiyuan 030032, China

Received:1900-01-01 Revised:1900-01-01 Online:2012-05-25 Published:2012-05-25

摘要/Abstract

摘要：

通过对500kV潞辛I线P546光纤差动保护在区外故障时的动作分析，指出了NOKIA脉冲编码调制(PCM)装置在光纤差动保护双通道切换过程中出现的收发2个方向上传输延时不

一致的问题，说明在光纤差动保护双通道方式中PCM装置的重要性。

关键词: 脉冲编码调制装置, 通道切换, 传输延时

Abstract:

According to analysis on action of P546 optical fiber differential protection in 500kV Luxin transmission line No.1 to response the fault occurred

in outside of the zone, it was pointed out that in the dual channels switch over process of the optical fiber protection, the transmission delays of NOKIA

PCM device in the two directions of receiving and sending are different; and the importance of the PCM device in the dual channels mode of the optical fiber

differential protection was explained.

Key words: pulse code modulation (PCM) device, channels switch over, transmission delay

侯超军;董翠芳;张宁. 脉冲编码调制装置在光纤保护双通道切换过程中的动作解析[J]. 华电技术, 2012, 34(5): 52-55.

HOU Chaojun;DONG Cuifang;ZHANG Ning. Analysis on action of PCM device in switch over process of dual channels of optical fiber protection[J]. Huadian Technology, 2012, 34(5): 52-55.