公开(公告)号：EP2830078A1

公开(公告)日：2015-01-28

申请号：EP13003743.5

申请日：2013-07-26

Applicant: ABB Technology AG

Inventor： Gentsch, Dietmar ,  Hencken, Kai

IPC: H01H33/668

CPC classification number: H01H33/668 ,  G01L21/34

Abstract: The invention relates to a method to determine the pressure inside of a vacuum interrupter for medium or high voltage use, wherein at least one fixed contact piece and at least one movable contact piece are arranged inside the technical vacuum of a vacuum interrupter, and wherein the contact pieces are electrically connected to external electrical fixation points, according to the preamble of claim 1 and 5.
In order to to implement a high accuracy pressure sensoring in the rough conditions inside a vacuum interrupter, without additional means internally to the vacuum interrupter, the external electrical fixation points are connected with an external electrical energy source, and that in the disconnected or open position of the vacuum interrupter, the effect of a cold cathode vacuum gauge will be used, in that the leakage current between the open contacts generates an x-ray induced ionization of the restgas inside the vaccum interrupter, and that the resulting current is measured with high resolution, in order to determine by this current the restgas pressure inside the vacuum interrupter.

Abstract translation: 本发明涉及一种确定用于中压或高压用途的真空断路器内部的压力的方法，其中至少一个固定接触件和至少一个可动接触片布置在真空断路器的技术真空内部，并且其中 根据权利要求1和5的前序部分，接触件电连接到外部电气固定点。为了在真空断路器内的粗糙状态下实现高精度的压力传感器，在真空断路器内部没有附加的装置， 外部电气固定点与外部电能源连接，而在真空断路器断开或打开位置时，将使用冷阴极真空计的影响，因为打开的触点之间的漏电流产生x 射线诱导真空灭弧室内的再生气体的电离，并且用h测量所得电流 高分辨率，以便通过此电流来确定真空断路器内的再生气压力。

公开(公告)号：EP2731120A1

公开(公告)日：2014-05-14

申请号：EP12007608.8

申请日：2012-11-08

Applicant: ABB Technology AG

Inventor： Gentsch, Dietmar ,  Hencken, Kai ,  Lamara, Tarek

IPC: H01H33/664

CPC classification number: H01H33/6642

Abstract: The invention relates to a vacuum interrupter arrangement for a medium voltage circuit breaker comprising a vacuum housing (4) within which a pair of electrical contacts (2a, 2b) are coaxially arranged and concentrically surrounded by the cylindrical shaped vacuum housing (4), wherein the electrical contacts (2a, 2b) are formed in a type of TMF-contacts, each comprising a slotted cup-shaped contact part (9a; 9b) which is attached to the distal end of a contact shaft (8a; 8b) and which is covered by a contact ring (10) disposed on the rim (11) of the cup-shaped contact part (9a; 9b), wherein each cup-shaped contact part (9; 9'; 9"; 9""; 9"") is provided with a vertical inward bending towards the contact ring (10), wherein the outer diameter of the bottom section of the cup-shaped contact part (9; 9'; 9"; 9""; 9"") is larger than the outer diameter of its rim section (11), in order to alter the Lorentz force to a respective inward direction.

Abstract translation: 本发明涉及一种用于中压断路器的真空断路器装置，其包括真空壳体（4），一对电触点（2a，2b）同轴地布置并同心地布置并由圆柱形真空壳体（4）包围，其中 电触头（2a，2b）形成为一种TMF触头，每个TMF触头包括连接到接触轴（8a; 8b）的远端的开槽的杯形接触部分（9a; 9b），并且 被设置在杯状接触部分（9a; 9b）的边缘（11）上的接触环（10）覆盖，其中每个杯形接触部分（9; 9'; 9“; 9”“; 9 “”）具有朝向接触环（10）的垂直向内弯曲，其中杯形接触部分（9; 9'; 9“; 9”“9”“）的底部部分的外径 大于其边缘部分（11）的外径，以便将洛伦兹力改变到相应的向内方向。