Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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一起数字化电能计量系统故障现场排查

来源:电工电气发布时间:2018-02-13 09:13 浏览次数:669
一起数字化电能计量系统故障现场排查
 
程含渺1,2,夏国芳1,2,梁凯3
(1 国网江苏省电力有限公司电力科学研究院,江苏 南京 210019;2 国家电网公司电能计量重点实验室,江苏 南京 210019;
3 国网无锡供电公司,江苏 无锡 214101)
 
    摘 要:介绍了一起数字化电能计量系统故障,依照现场排查步骤,逐步分析故障原因,发现故障是由光纤模式不匹配导致。检查变电站其他光纤通信线路,发现同样可能存在不同模式光纤混用的情况,提出了除长距离传输场合,全站应使用多模光纤,统一光纤接口,尽量减少或不使用接口转换器等防范措施,为智能变电站运维工作提供参考。
    关键词:智能变电站;数字化电能计量;光纤;通信故障
    中图分类号:TM933.4     文献标识码:B     文章编号:1007-3175(2018)02-0042-03
 
Field Investigation About a Failure of Digital Metering System
 
CHENG Han-miao1,2, XIA Guo-fang1,2, LIANG Kai3
(1 State Grid Jiangsu Electric Power Co., Ltd, Electric Power Research Institute, Nanjing 210019, China;
2 State Grid Key Laboratory of Electrical Power Metering, Nanjing 210019, China;
3 State Grid Wuxi Electric Power Supply Company, Wuxi 214101, China)
 
    Abstract: Introduction was made to a failure of digital energy metering system. According to the filed investigation procedure, this paper analyzed the failure cause step by step and discovered that the mismatch optical fiber caused the failure. Other optical fiber communication lines in substation were checked, so as to find that there possibly existed different modes of fiber mixing. This paper proposed the precautionary measures that the multimode fiber should be used in the whole substation, the fiber interface should be unified and the interface converter should be used less even none, except for the long-distance transmission occasion, which provides references for the operation and maintenance of smart substation.
    Key words: smart substation; digital electrical power metering; optical fibre; communication failure
 
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