公开(公告)号：EP3239997A1

公开(公告)日：2017-11-01

申请号：EP16460025.6

申请日：2016-04-25

Applicant: ABB Schweiz AG

Inventor： Banaszczyk, Jedrzej ,  Czyzewski, Jan ,  Adamczyk, Bartlomiej ,  Bachorz, Lukasz ,  Wysocki, Wojciech ,  Tarnowski, Marcin ,  Hedlund, Roger ,  Sjoberg, Peter ,  Ostlund, Jan

IPC: H01F27/32 ,  H01F38/26 ,  H01F38/30 ,  H01F38/36

CPC classification number: H01F38/26 ,  H01F27/321 ,  H01F38/30 ,  H01F38/36

Abstract: The present invention refers to HV apparatus (1; 31), and a method of manufacturing a HV apparatus, in particular a HV dry instrument transformer, which has a form of a current transformer (1), a voltage transformer (31) or a combined transformer with an insulating gel (22; 48). The apparatus is characterized in that it comprises at least two electrically conductive elements such as a head transformer cover (2), a head housing base (3), core casing (4), primary conductor (5), a bottom external housing (32), a bottom support flange (39a), a core (33) designed to operate one of the said elements at high voltage with respect to the other and electric insulation material comprising insulating gel (22; 48) filling enclosed space between the conductive elements (2, 3, 4, 5; 32, 39a, 33). The inventive apparatus comprises at least one of the electrically conductive elements (2, 3, 4, 5; 32, 39a, 33) with a coating (2a, 3a, 4a, 5a; 32a, 33a. 39c) made of solid insulating material and separating the surface of the conductive element (2, 3, 4, 5; 32, 39a, 33) from the insulating gel (22; 48).

Abstract translation: 本发明涉及HV设备（1; 31）以及HV设备的制造方法，特别是HV干式仪表变压器，其具有变流器（1），变压器（31）或变压器 联合变压器与绝缘凝胶（22; 48）。 该设备的特征在于它包括至少两个导电元件，例如磁头变压器盖（2），磁头壳体基座（3），磁芯壳体（4），主导体（5），底部外壳（32） ），底部支撑凸缘（39a），设计成相对于另一个以高电压操作所述元件之一的芯部（33），以及包括填充封闭空间的绝缘凝胶（22; 48）的电绝缘材料 （2,3,4,5; 32,39a，33）。 本发明的设备包括具有由固体绝缘材料制成的涂层（2a，3a，4a，5a; 32a，33a，39c）的导电元件（2,3,4,5; 32,39a，33）中的至少一个 并将导电元件（2,3,4,5; 32,39a，33）的表面与绝缘凝胶（22; 48）分开。