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    • 3. 发明申请
    • VERTICAL-STRATIFICATION WINDING MACHINE FOR ELECTRIC TRANSFORMERS
    • 电动变压器垂直分条绕线机
    • WO2008131889A1
    • 2008-11-06
    • PCT/EP2008/003235
    • 2008-04-23
    • SILTECH S.R.L.GONELLA, Gianfranco
    • GONELLA, Gianfranco
    • B65H54/76H01F41/06
    • B65H54/76H01F41/082
    • To create medium-voltage windings for distribution transformers of both the oil-filled and cast-resin types, horizontal stratification techniques are still used, with machines being automated to a greater or lesser degree and with the necessity to isolate the various layers with dielectric film. Vertical-stratification winding machines introduce a radical modification with respect to this winding technique: coils are no longer made to rotate around a horizontal axis but are positioned vertically. With the new technique, the winding spirals are preformed by a variable geometry expander and fall under the force of gravity to form concentric spirals as illustrated in the main drawing below (Fig.1). A further important innovation lies in the fact there is no need to insert any form of insulation between layers, resulting in considerable advantages in terms of costs and the thermal dissipation of the coil.
    • 为了为注油和铸造树脂类型的配电变压器创建中压绕组,仍然使用水平分层技术,机器可以或多或少地自动化,并且需要用介电膜隔离各层 。 垂直分层绕线机相对于这种绕组技术引入了根本性的修改:线圈不再围绕水平轴旋转,而是垂直定位。 使用新技术,绕组螺旋由可变几何膨胀机预成型,并在重力作用下落下以形成同心螺旋,如下图主图所示(图1)。 另一个重要的创新在于,不需要在层之间插入任何形式的绝缘,从而在成本和线圈的散热方面具有相当大的优点。