公开(公告)号：WO2012136426A1

公开(公告)日：2012-10-11

申请号：PCT/EP2012/053663

申请日：2012-03-02

Applicant: ABB TECHNOLOGY LTD ,  LARSSON, Tommy ,  MANNERBRO, Richard ,  MATHAE, Jean

Inventor： LARSSON, Tommy ,  MANNERBRO, Richard ,  MATHAE, Jean

IPC: H01H9/00 ,  H05K9/00

CPC classification number: H01H9/0005 ,  H01H9/0016 ,  H01H9/48 ,  H01H50/10

Abstract: A tap changer for connection to a regulating winding of a rated regulation voltage is provided. The tap changer having a linear tap selector having at least one current collector and a linear arrangement of fixed contacts. Tap changer further comprises a shielding structure arranged to shield the tap selector from an external electrical field. The shielding structure comprises: a first shielding part arranged to be electrically connected to a current collector; and a second shielding part formed at least partly by the fixed contacts. The first and second shielding parts are separated so that the distance between the first and second shielding parts reaches or exceeds the rated regulating voltage insulation distance of the tap changer.

Abstract translation: 提供用于连接到额定调节电压的调节绕组的分接开关。 分接开关具有线性分接选择器，其具有至少一个集电器和固定触点的线性排列。 分接开关还包括屏蔽结构，其被布置成屏蔽分接选择器与外部电场。 屏蔽结构包括：第一屏蔽部分，被布置成电连接到集电器; 以及至少部分地由固定触点形成的第二屏蔽部分。 分离第一和第二屏蔽部分，使得第一和第二屏蔽部件之间的距离达到或超过分接开关的额定调节电压绝缘距离。