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    • 4. 发明申请
    • A FILM, A CAPACITOR, A VOLTAGE TRANSFORMER AND A METHOD OF USING A CAPACITOR
    • 电影胶片,电容器,电压互感器和使用电容器的方法
    • WO2007071097A2
    • 2007-06-28
    • PCT/CH2006000723
    • 2006-12-20
    • ABB RESEARCH LTDCARLEN MARTINCHRISTEN THOMASFUHRMANN HENNING
    • CARLEN MARTINCHRISTEN THOMASFUHRMANN HENNING
    • H01G4/012
    • H01G4/32H01G4/012H01G4/015
    • A film (1) comprises a base (2) consisting of an electrically insulating polymer which carries on one or both surfaces a sequence of electrically conductively coated areas (3) which are separated by non-coated interstices (4). The film or a superposition of films arranged one above the other can be shaped, i.e., folded or preferably wound to form a capacitor with a plurality of essentially parallel electrodes which are insulated from each other and consist each of one or more electrode layers formed by the coated areas (3) and separated by dielectric layers formed by sections of the base (2). An electrode layer may comprise two adjacent coated areas pertaining to subsequent turns. The capacitor has high voltage withstand capacity and can be used, e.g., as a high voltage capacitor in a capacitive voltage transformer in series with a conventional low voltage transformer wound from two superposed conductively coated films.
    • 薄膜(1)包括由电绝缘聚合物构成的基体(2),所述基体(2)在一个或两个表面上承载一系列由未涂覆的间隙(4)分开的导电涂覆区域(3)。 一个在另一个之上布置的膜或叠置膜可以被成形,即折叠或优选缠绕以形成具有多个基本上平行的电极的电容器,所述电极彼此绝缘并且由通过以下方式形成的一个或多个电极层组成: 所述涂覆区域(3)并且由所述基部(2)的部分形成的介电层分开。 电极层可以包括与后续匝有关的两个相邻的涂覆区域。 该电容器具有高耐压容量,并且可用作例如与由两个叠置的导电涂覆膜缠绕的常规低压变压器串联的电容性电压变压器中的高压电容器。