电流类在线监测装置测量准确度和可靠性分析Accuracy and Reliability Analysis of On-line Current Monitors
邹成伍,吴剑芳
ZOU Chengwu,WU Jianfang
摘要(Abstract):
电流类在线监测装置包括变压器铁芯接地电流在线监测装置、电缆护层环流在线监测装置、变压器中性点直流偏磁在线监测装置等,针对在线监测装置在入网检测和生产现场调研中出现的一些问题,从结构原理、测量方法等方面进行了分析,旨在提高在线监测装置的测量准确度和可靠性。
On-line current monitors consist of on-line monitoring device of transformer core earthing current,on-line monitoring device of cable sheath circulation,online monitoring device of DC bias of transformer neutral point,etc.For problems of online monitoring devices in grid access testing and investigation in the production field,the paper analyzes the structures and measuring methods to improve the accuracy and reliability of on-line current monitoring device.
关键词(KeyWords):
在线监测;铁芯接地电流;中性点;直流偏磁;护层环流
on-line monitoring;core earthing current;neutral point;DC bias;sheath circulation
基金项目(Foundation):
作者(Author):
邹成伍,吴剑芳
ZOU Chengwu,WU Jianfang
DOI: 10.19585/j.zjdl.2017.01.006
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