摘要
论述了电流互感器二次负担的常规测量方法,指出某些从保护柜加入电流进行测量的所谓"非常规"方法的错误之处,提出了将电流源通过二次电流回路延伸到端子箱进行测量的实用办法,具有符合规程要求且减轻劳动强度的优点;另外提出了电流二次回路安装完成以后,用电池灯带回路点极性的方法,能检测到大部分的电流回路的导通性并确认极性,具有成本低廉,简便易行的特点。
This paper discusses the general measure method of second load of current transformer and point out the defect of the measure method from protection cubicle put into current, brings out a practical measure way using current source through secondary current circuit to terminal box featuring coincidence regulations. It gives a new way using battery lights to test polarity that can examine conductivity of current circuit mostly and confirm polarity featuring. The results show that this method with low-cost and simple to operate.
出处
《电力科学与工程》
2012年第9期29-32,共4页
Electric Power Science and Engineering
关键词
电流互感器
二次回路
二次负担
通流
极性
调试
current transformer
secondary circuit
secondary load
injection current
polarity
adjustment
