容性设备相对介质损耗因数及电容量比值带电测试方法探析

摘要

In order to explore the capacitive equipment relative dielectric loss factor and capacitance ratio live test method,taking a 220 kV substation current transformer relative dielectric loss capacitance live detection problem as an example, through the unit current transformer live detection,the phase oil chromatography test,and the phase current transformer partial discharge test method,it can realize the live measurement of dielectric loss and capacitance.Under the premise of not affecting the reliability of the power supply, the method can not only obtain the latest status of the sample at any time,but also realistically reflect the insulation condition of the equipment in the running state.%为了探索容性设备相对介质损耗因数及电容量比值带电测试方法,以某220 kV变电站电流互感器相对介质损耗电容量带电检测问题为例,通过采用单元电流互感器带电检测、对应相油色谱试验、对应相电流互感器局部放电试验等方法,可实现带电试验测量介质损耗及电容量.所提方法在不影响供电可靠率的前提下,不仅随时可获得试品最新状态量,而且测量所得数据能够切实反映设备在运行状态下的绝缘状况.