220 kV 线路跳闸引起的通信设备接地故障分析 |
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引用本文: | 周程,李桂枝,柯春根,戎瑜.220 kV 线路跳闸引起的通信设备接地故障分析[J].安徽电气工程职业技术学院学报,2015,20(3):6-10. |
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作者姓名: | 周程 李桂枝 柯春根 戎瑜 |
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作者单位: | 国网马鞍山供电公司 运检中心,安徽 马鞍山,243000;国网马鞍山供电公司 运检中心,安徽 马鞍山,243000;国网马鞍山供电公司 运检中心,安徽 马鞍山,243000;国网马鞍山供电公司 运检中心,安徽 马鞍山,243000 |
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摘 要: | 以一起220k V线路发生区内故障,线路纵联保护正确跳闸为例,文章分析了在线路发生接地故障期间,由于本线路复用光纤通道中通信设备接地不良对2M数字信号产生干扰,从而引起保护收信抖动。为了提高复用通道传输信息的可靠性,文章对通信设备可靠接地提出了改进的方案。
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关 键 词: | 220kV线路保护 复用光纤通道 通信设备接地 2M误码 |
Fault Analysis of Communication Equipment Grounding Caused by 220 kV Transmission Line Trip |
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Abstract: | Taking a fault in the 220kV transmission line area and the line pilot protection correct trip as an example, the paper analyzes the reason of the receiving jitter on the protection equipment is that the poor communication equipments grounding interfering 2 M digital signal in the multiplexing optical fiber channel of this line during the line grounding fault.In order to improve the information transmission relia-bility of the multiplexed channel, this paper proposes the improvement measures on communication equip-ment reliable grounding. |
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Keywords: | 220kV transmission line protection multiplexing optical fiber channel communication equipment grounding 2 M BER |
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