公开(公告)号：EP2985773A1

公开(公告)日：2016-02-17

申请号：EP14002816.8

申请日：2014-08-13

Applicant: ABB Technology AG

Inventor： Weber, Benjamin ,  Tepper, Dr. Jens ,  Carlen, Dr. Martin

IPC: H01H9/00

CPC classification number: H01H9/0016 ,  H01H33/021 ,  H01H2009/0022 ,  H01H2050/025

Abstract: The invention is related to an on-load tap-changer (10, 40, 60, 80) for dry transformers, comprising an electric insulating hollow casing (12, 62) extending around a virtual axis (14, 70), wherein several electric contact sections (16, 18, 20, 22) are foreseen along the inner surface of the hollow casing (12, 62), which are electrically joined through the wall of the hollow casing (12, 62) and a selector contact in the inner of the casing which is rotatable around the virtual axis and that's radial outer end is selectively connectable with one of the contact sections by a respective rotation. The inner space (30) of the hollow casing (12, 62) is hermetically sealed and filled with a preferably pressured insulating gas. The invention is also related to a transformer with an on-load tap-changer (10, 40, 60, 80).

Abstract translation: 本发明涉及一种用于干式变压器的有载分接开关（10,40,60,80），包括围绕虚拟轴线（14,70）延伸的电绝缘中空壳体（12,62），其中几个电 沿着中空壳体（12,62）的内表面预见接触部分（16,18,20,22），它们通过中空壳体（12,62）的壁电连接，并且内部的选择器接触件 可绕虚拟轴线旋转并且径向外端部通过相应的旋转可选择性地与一个接触部分连接。 中空壳体（12,62）的内部空间（30）被气密地密封并填充有优选的加压绝缘气体。 本发明还涉及具有有载分接开关（10,40,60,80）的变压器。