公开(公告)号：US20150340179A1

公开(公告)日：2015-11-26

申请号：US14435882

申请日：2013-10-17

Applicant: ALSTOM TECHNOLOGY LTD

Inventor： Oana AITKEN ,  Chakib FNINECHE

IPC: H01H33/02 ,  H01H33/12 ,  H01H33/78

CPC classification number: H01H33/025 ,  H01H1/02 ,  H01H1/0233 ,  H01H1/0237 ,  H01H1/385 ,  H01H33/12 ,  H01H33/78 ,  H01H2201/008 ,  H01H2201/026

Abstract: Device for making and/or breaking a current including a pair of permanent contacts (3, 4), at least one of the contacts (3, 4) being movable. At least one permanent contact (3, 4) including a main portion (3.1, 4.1) having a free end and an end protection portion (3.2, 4.2) secured to the free end of the main portion (3.1, 4.1), designed to be in mechanical and electrical contact with the other permanent contact (4, 3) only during an operation for opening or closing the pair. The end protection portion (3.2, 4.2) is made of a single transition metal having a melting temperature that is strictly higher than that of the main portion (3.1, 4.1) to which it is secured, or of an oxide or carbide of such a metal, or even of zinc oxide. For application in particular to high- or medium-voltage circuit breakers.

Abstract translation: 用于制造和/或断开包括一对永久触头（3,4）的电流的装置，所述触点（3,4）中的至少一个是可移动的。 至少一个包括具有自由端的主要部分（3.1,4.1）和固定到主要部分（3.1,4.1）的自由端的端部保护部分（3.2,4.2）的永久接触件（3,4），设计成 仅在打开或关闭该对的操作期间与另一个永久触点（4,3）机械和电接触。 端部保护部分（3.2,4.2）由具有严格高于其固定的主要部分（3.1,4.1）的熔化温度的单一过渡金属制成，或由这种 金属，甚至氧化锌。 适用于高压或中压断路器。