电力变压器主绝缘结构中的静电环问题

Discussion on Electrostatic Ring in the Main Insulation Constuction of Power Transformer

论述了变压器主绝缘结构中静电环的补偿作用,端部“油楔”的形成,其消除措施是适当缩短垫块的宽度,设计静电环的形状时主要确定其电极的曲率半径ρ和绝缘层厚度t,使二者比例合适。

Compensation function of electrostatic ring in the main insulation constuction of power transformer and formation of ending oil wedge is expounded in this paper. Its removal are shorten the breadth of packing piece. When desining the shape of electrostatic ring, it mainly make certain the curvature radiusp and isolation layer t of the electrode and make proportion appropriately between them.