泵站二次电压回路及回路电压异常现象分析
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摘要
介绍了泵站电力系统的二次电压回路,共性上二次电压的回路结构都可以分解为源头、母线、分支和隔离保护设备,并给出了造成二次电压回路个性的原因。通过对仙人大港泵站双向运行泵站中的二次电压回路的分析,检查出电压互感器V-V连接方式接地线接错的问题,排除了熔断高压熔丝的隐患。
Introduction was made to the secondary voltage circuit of power system in the pumping station. The secondary voltage circuit structure from the corner of generality could be divided into source, bus bar, branch and insulation blocking equipment, and the cause of secondary voltage circuitindividuality was given. After the analysis of the secondary voltage circuit of two-way running pump station in Xiaren grand port pump station, the voltage transformer was examined and it was found that the V-Vconnection with grounding wire was wrong, which eliminates the hidden danger of the high pressure fuse.
Introduction was made to the secondary voltage circuit of power system in the pumping station. The secondary voltage circuit structure from the corner of generality could be divided into source, bus bar, branch and insulation blocking equipment, and the cause of secondary voltage circuitindividuality was given. After the analysis of the secondary voltage circuit of two-way running pump station in Xiaren grand port pump station, the voltage transformer was examined and it was found that the V-Vconnection with grounding wire was wrong, which eliminates the hidden danger of the high pressure fuse.
引文
[1]赵利权,孟涛,吕项羽,李德鑫,尹杭.一起电压互感器二次回路异常事件的原因及对策[J].吉林电力,2018,46(2):45-47.
[2]黄新民.电力系统中继电保护二次回路的维护与检修[J].工程技术研究,2017(10):248-249.
[3]刘莹,沈竹,黄志华.电压互感器二次回路异常的原因及其对策[J].湖州师范学院学报,2013,35(S1):118-119.
[4]夏文忠,沙巨生.电压互感器二次回路的分析与改进[J].电气化铁道,2004(2):22-23.
[2]黄新民.电力系统中继电保护二次回路的维护与检修[J].工程技术研究,2017(10):248-249.
[3]刘莹,沈竹,黄志华.电压互感器二次回路异常的原因及其对策[J].湖州师范学院学报,2013,35(S1):118-119.
[4]夏文忠,沙巨生.电压互感器二次回路的分析与改进[J].电气化铁道,2004(2):22-23.