摘要
为了改善应力控制型套管的电场分布不均匀和过于集中的状况,采用非线性电阻材料和具有高介电常数的电容带的组合结构,应用PSPice对其等效电路进行了模拟计算;按不同处理方法制成三种试样并进行局部放电试验,两者比较表明:试验结果与模拟计算结果相吻合,同时采用涂敷非线性电阻材料和电容带的组合结构,并选取适当的参数,可起到改善应力控制型套管电场分布的作用。
The equivalent circuit of the domain near flange of noncapacitance bushing is simulated and the parameters are optimized by the software PSPice. The samples are prepared by the configuration of nonlinear resistance and capacitance tape with high permittivity, and their initial voltages of partial discharge are measured in experiments. As the calculation results is approximate to those of tests,the calculation is proved to be practical
出处
《绝缘材料》
CAS
北大核心
2003年第5期29-31,共3页
Insulating Materials
基金
国家自然科学基金(50277029)
关键词
非线性电介质
应力控制型套管
模拟计算
nonlinear material
stress grading bushing
simulated calculation
