1引言三峡电厂地下电站发电机出口500k V升压变压器(型号为SFP-840000/500)为国内某大型变压器公司生产,该类型变压器在制造设计时,为了达到减震降噪的目的,在器身夹件下部与箱底之间放置48块尺寸为240mm×100mm×20mm的橡胶板,同时为了保证夹件对地的绝缘电阻,在每块橡胶板上放 1 Introduction Three Gorges power station underground generator generator outlet 500kV step-up transformer (model SFP-840000/500) for a large domestic transformer company, this type of transformer in the manufacturing design, in order to achieve the purpose of damping noise reduction, Between the lower part of the body clamp and the bottom of the box, 48 pieces of rubber plates with a size of 240mm × 100mm × 20mm are placed, and at the same time, in order to ensure the insulation resistance of the clamp to the ground,