公开(公告)号：US09396875B2

公开(公告)日：2016-07-19

申请号：US14888589

申请日：2013-06-14

Applicant: ABB TECHNOLOGY LTD

Inventor： Roger Gustavsson ,  Petter Johansson

IPC: H02K5/24 ,  H01G2/10 ,  H01G4/224 ,  H01G4/236 ,  G10K11/16

CPC classification number: H01G2/103 ,  G10K11/16 ,  H01G4/224 ,  H01G4/236

Abstract: A terminal bushing sealing element is adapted to be fitted between a terminal bushing and a barrier element. The sealing element is elastic, has an annular shape, and includes a wall with an inner surface and an outer surface. A first opening is provided at a first end of the sealing element and a second opening is provided at a second end of the sealing element, which is opposite to the first end and the wall extends between the first end and the second end. The wall includes a first wall portion that is inclined such that a diameter of the sealing element increases from the first end in the direction towards the second end. The sealing element provides for improved sound attenuation while maintaining a long creepage distance and may be used in sound attenuation casings that are included in power capacitor arrangements.

Abstract translation: 端子衬套密封元件适于安装在端子衬套和屏障元件之间。 密封元件是弹性的，具有环形形状，并且包括具有内表面和外表面的壁。 第一开口设置在密封元件的第一端处，并且第二开口设置在密封元件的与第一端相对的第二端处，并且壁在第一端和第二端之间延伸。 壁包括第一壁部分，其倾斜使得密封元件的直径沿着朝向第二端的方向从第一端增加。 密封元件提供改善的声音衰减，同时保持长的爬电距离，并且可以用于包括在功率电容器布置中的声衰减壳体中。