公开(公告)号：EP2887367A1

公开(公告)日：2015-06-24

申请号：EP13198479.1

申请日：2013-12-19

Applicant: ABB Technology AB

Inventor： Seeger, Martin ,  Panousis, Emmanouil ,  Iordandis, Arthouros ,  Galletti, Bernardo ,  Over, Daniel ,  Dousset, Vincent ,  Lehmann, Joerg

IPC: H01H1/38 ,  H01H33/70

CPC classification number: H01H33/7023 ,  H01H1/385 ,  H01H33/703

Abstract: The gas-insulated high-voltage circuit breaker comprises in coaxial arrangement two arcing contact members (20, 30) which are movable relative to one another along an axis (A) and of which a first (30) is realized as an axially extended contact pin (31) and a second (20) as a first contact tulip (31) with an axially extended flow duct (25) which forms a flexible nozzle throat (24) and which receives the contact pin (31) during current making: During current breaking pressurized arc-extinguishing gas flows from an arcing zone (Z), which takes a switching arc (S), through the flexible nozzle throat (24) to an expansion room (11) and applies an axially aligned first force (F 1 ) to a root of the switching arc (S) when the root is located in the flow duct (25) of the contact tulip (31).
In order to increase the current interrupting performance the contact tulip (31) comprises a swirl chamber (70) for creating a predominantly circumferentially aligned second force (F 2 ) and for applying the second force (F 2 ) to the root of the switching arc (S).

Abstract translation: 气体绝缘高压断路器包括同轴布置的两个电弧接触构件（20,30），其可沿着轴线（A）相对于彼此移动，并且第一（30）被实现为轴向延伸接触件 销（31）和第二接头（20）作为第一接触式郁金香（31），其具有形成柔性喷嘴喉部（24）的轴向延伸的流动管道（25），并且在当前制造期间接收接触销（31） 电流断路加压灭弧气体从通过柔性喷嘴喉部（24）到膨胀室（11）的起弧区（Z）流动，该弧形区（Z）通过切换电弧（S）施加轴向对准的第一力（F 1 ）当根部位于接触件郁金香（31）的流动管道（25）中时切换到切换电弧（S）的根部。 为了增加电流中断性能，接触式郁金香（31）包括用于产生主要为周向对准的第二力（F 2）并用于将第二力（F 2）施加到开关电弧根部的旋流室（70） （S）。