变压器局部放电变电位多端测量定位分析

Variable-potential multiple-end measurement for locating analysis of transformer partial discharge

变压器局部放电的定位非常重要,为此,简述了变电位多端测量的原理,通过实例分析对称加压、两相支撑一相、一相支撑两相和低压支撑中压等方法确定局部放电定位的过程,并由此得出变电位多端测量的经验和体会。

In light of the great importance of transformer partial discharge （PD） locating, this paper briefly describes the principle of variable-potential multiple-end measurement, illustrating and analyzing the PD locating proccss by use of the methods of symmetrical pressurization, two phases propping up one phase, one phase propping up two phases, and low voltage supporting medium voltage, etc. Thus, the experience in variable-potential multiple-end measurement is obtained.