Invention Grant
- Patent Title: Electrical contact arrangement and air insulated medium voltage circuit breaker including the electrical contact arrangement
- Patent Title (中): 电气接触装置和空气绝缘中压断路器,包括电气接触装置
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Application No.: US13766389Application Date: 2013-02-13
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Publication No.: US09263199B2Publication Date: 2016-02-16
- Inventor: Christian Reuber , Dietmar Gentsch
- Applicant: ABB Technology AG
- Applicant Address: CH Zürich
- Assignee: ABB TECHNOLOGY AG
- Current Assignee: ABB TECHNOLOGY AG
- Current Assignee Address: CH Zürich
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: EP10008456 20100813
- Main IPC: H01H31/02
- IPC: H01H31/02 ; H01H1/14 ; H01H1/38 ; H01H1/44 ; H01H33/12

Abstract:
An electrical contact arrangement for medium to high voltage applications includes a contact arm having a distal end section on which a circular shaped annulus arrangement having several axially and parallel directed contact fingers is arranged. The contact fingers are pressed on the contact arm via respective radially directed connection sections by a spring ring which is peripherally arranged around the contact fingers. The distal end section of the contact arm includes a first ring-shaped surface and an adjacent second ring-shaped surface, so that the connection section of each contact finger is pressed to at least both the first and second ring-shaped surfaces.
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