【摘要】 全封闭组合电器(GIS)局部放电检测对于保证其安全可靠运行具有重要的意义。该文从电气测试的角度,研究了GIS局部放电信号的内置传感检测,研制了圆板型和圆环型两种内置传感器,采用电容耦合模型和天线模型研究了这两种传感器的性能。GIS局部放电实测结果表明,文中所研制的内置传感器性能优异,能够传感纳秒级的局部放电脉冲信号,频率响应特性好,完全能够满足GIS局部放电信号测量要求,圆环传感器的灵敏度高于圆板传感器。更多还原

【Abstract】 PD deletion in Gas Insulated Substation(GIS) is very important to guarantee its safety and reliable operation. Detection of PD in GIS by inner-sensing method is studied based on electrical measurement in the paper. Two kinds of inner sensors including disk sensor and ring sensor are developed,their performance is studied deeply using capacitive model and antenna model. The results of PD detection show that these inner sensors work well and can meet the demands of PD detection in GIS and ring sensor is more sensitive than disk sensor.更多还原