110 kV电容式电压互感器试验数据异常处理方法

Data Processing for 110 kV Capacitive Voltage Transformer

电容式电压互感器CVT已逐渐取代传统形式的电磁电压互感器。分析110 kV CVT结构和工作原理,结合试验数据发生异常的一起实例,研究现场试验数据的分析与判断方式,通过检测CVT的电容量、绝缘电阻、介质耗损等参数,准确快速地找出异常类型与发生位置,并提出了预防对策,以确保事故得以有效及时处理。

Capacitor voltage transformer CVT has gradually replaced the traditional form of electromagnetic voltage transformer.The structure and working principle of 110 kV CVT are analyzed.The analysis and judgment methods of field test data are studied based on an example of abnormal test data.By detecting the parameters of CVT,such as capacity,insulation resistance and dielectric loss,the abnormal type and location can be found accurately and quickly.Preventive measures are put forward to ensure effective and timely handling of accidents.