The formulation design, processing characteristic and material choice of winding without filling in epoxy resin cast dry-type transformer are introduced. The warnings in cast process are presented.

• 介绍了环氧树脂浇注干式变压器无填料绕组浇注的工艺特点、材料的选择和配方设计,提出了浇注过程中应注意的事项。