公开(公告)号：WO2015039918A1

公开(公告)日：2015-03-26

申请号：PCT/EP2014/069118

申请日：2014-09-09

Applicant: ABB TECHNOLOGY AG

Inventor： HEIERMEIER, Helmut ,  DAHLGREN, Henrik ,  SUTHERLAND, Timothy

IPC: H01H33/70

CPC classification number: H01H33/7023 ,  H01H33/7069 ,  H01H33/7076

Abstract: A gas insulated high voltage circuit breaker (1) comprises: a first arcing contact (31) and a second arcing contact (41), wherein at least one of the two arcing contacts (31, 41) is axially movable along an axis (A-A'); and a nozzle (32) surrounding an axially extending channel (33), wherein during a breaking operation, an arc between the first arcing contact and the second arcing contact is formed in an arcing region in the channel (33), wherein at least a part of an inner surface of the nozzle (32) is coated with a first ceramic coating (34) in order to protect it from an influence of the arc.

Abstract translation: 气体绝缘高压断路器（1）包括：第一电弧触点（31）和第二电弧触点（41），其中两个电弧触头（31,41）中的至少一个可沿轴线（A -一个'）; 以及围绕轴向延伸通道（33）的喷嘴（32），其中在断裂操作期间，在所述通道（33）中的电弧区域中形成所述第一电弧触点和所述第二电弧触点之间的电弧，其中至少一个 喷嘴（32）的内表面的一部分涂覆有第一陶瓷涂层（34），以防止其受到电弧的影响。