【摘要】 介绍了电阻分压器传感电压的电阻式电压互感器;它在整个测量范围内无饱和畸变、线性好而且体积小、结构紧凑,便于测量和控制系统小型化。分析表明分布电容和温度变化是它最主要的误差源。通过分压电阻的选择及结构设计研制成10 kV电阻式电压互感器,型式试验验证达到0.2级准确度。更多还原

【Abstract】 The voltage sensor in transformer is based on the resistive voltage divider;also this sensor is non-saturable and linear over the whole measuring range.The shape of the enclosure is specially desygned to minimze and control parasitic effects.In this paper,the error source of the resistive voltage divider was analyzed;the result shows that the affects produced by distributed capacity and temperature are mainly parts.Sample transformer of 10 kV was made and passed all tests.The precision is rank 0.2.更多还原