| 摘要 |
<p>PURPOSE:To provide a gas insulated transformer high in core cooling efficiency with an insulation gas, easy in production and little in vibration noise. CONSTITUTION:A transformer core has a cooling duct formed by laminating Si steel sheets to form cooling insulation fluid passages in its laminating direction. A three-dimensional fiber fabric composed of plane fibers and thickness direction fibers is impregnated with an epoxy resin or polyester resin and cured to form a plate having hollow parts 1a and a cooling dust 1 is composed of this plate and disposed between layers of a laminate of magnetic steel sheets.</p> |
