浙江电力

2017, v.36;No.257(09) 24-27

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基于电流互感器的非开断式操作电压测试技术研究
Research on Testing Technology of Non-breaking Operating Voltage Based on Current Transformer

何文林,魏泽民,杨智,陈珉
HE Wenlin,WEI Zemin,YANG Zhi,CHEN Min

摘要(Abstract):

以CTH型倒置式电流互感器为对象,建立了流过电流互感器末屏接地端子的电流与一次电压之间的传递关系计算模型,分析了介质损耗值、电容量对传递系数的影响,给出了绝缘正常电流互感器传递系数极限偏差,并试验验证了不同幅值操作冲击电压作用下传递系数的最大偏差。
Taking CTH type inverted current transformer as the object, this paper establishes a calculation model of transitive relation between the current flowing through the end screen terminal and the primary voltage of the current transformer; besides, it analyzes the effect of the dielectric loss value and capacitance on the transfer coefficient. Finally, it gives the limit deviation of transfer coefficient of the current transformer with normal insulation and verifies the maximum deviation of transfer coefficient under different operating impulse voltages.

关键词(KeyWords): 电流互感器;传递关系;非开断;过电压
current transformer;transitive relation;non-breaking;overvoltage

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 何文林,魏泽民,杨智,陈珉
HE Wenlin,WEI Zemin,YANG Zhi,CHEN Min

DOI: 10.19585/j.zjdl.201709005

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