【摘要】 在三相快速瞬变过程VFT(VeryFastTransients)电压测量中 ,需要 3个电容传感器 ,而每个传感器同时受A、B、C三相电压的电场耦合。该文讨论了三相同壳式封闭式组合电器GIS(GasInsulatedSubstation)在完全对称布置和不完全对称布置情形下 ,电场耦合系数矩阵的确定方法。提出了主导电场耦合系数的概念 ,给出了它的近似解析表达式更多还原

【Abstract】 In order to measure the VFT phase voltage on three phase enclosed GIS, 3 capacitance sensors are needed. Each capacitance sensor is coupled with the electric field of (A、B and C)three phases voltage. This paper describes the method to determine the matrix of electric coupling coefficients. In addition, the main electric coupling coefficients are named, which have an approximate analytic expression.更多还原