Gas-insulated high-voltage switch
    7.
    发明授权
    Gas-insulated high-voltage switch 有权
    气体绝缘高压开关

    公开(公告)号:US08766131B2

    公开(公告)日:2014-07-01

    申请号:US13105377

    申请日:2011-05-11

    IPC分类号: H01H33/82

    CPC分类号: H01H33/903

    摘要: A high-voltage switch includes a contact arrangement having two arcing contacts, one of which is supported displaceably against the action of a pretensioned spring. When the contact arrangement is closed, the free ends of the two arcing contacts are supported on one another. When the contact arrangement is opened, the two arcing contacts separate and during this process an arcing zone, accommodating compressed arc gas, is produced which is limited axially by free ends of the two arcing contacts and radially by an insulating nozzle toward the outside. To prevent the displaceably supported arcing contact from returning against the action of the pretensioned spring when a large short-circuit current is interrupted, the switch includes a piston/cylinder system functioning as a restoring device, which communicates with the arcing zone and which, with increasing pressure of the compressed arc gas produced in the arcing zone, generates a restoring force supporting the repelling force of the pretensioned spring.

    摘要翻译: 高压开关包括具有两个电弧触点的触点装置,其中一个触点抵抗预拉伸弹簧的作用被可移动地支撑。 当接触装置关闭时,两个电弧触头的自由端彼此支撑。 当接触装置打开时,两个电弧触头分离,并且在该过程中,产生容纳压缩电弧气体的电弧区,该电弧区由两个电弧触点的自由端轴向限制,并且通过绝缘喷嘴径向径向向外限制。 为了防止可移动地支撑的电弧触头在大的短路电流被中断时抵抗预拉伸弹簧的作用而返回,开关包括用作恢复装置的活塞/气缸系统,其与电弧区域连通,并且与 在电弧区产生的压缩电弧气体的增加的压力产生支撑预紧弹簧的排斥力的恢复力。

    Circuit breaker with parallel rated current paths
    8.
    发明授权
    Circuit breaker with parallel rated current paths 有权
    具有并联额定电流通路的断路器

    公开(公告)号:US08901447B2

    公开(公告)日:2014-12-02

    申请号:US12889054

    申请日:2010-09-23

    IPC分类号: H01H33/12 H01H33/16

    CPC分类号: H01H33/16 H01H33/12

    摘要: A circuit breaker is provided which can be filled with a quenching gas and which has two contact arrangements, which can be moved relative to one another and along a longitudinal axis of the circuit breaker. The contact arrangements form a arcing contact system and a rated current contact system connected electrically in parallel with it. One of the contact arrangements includes inner rated current contacts and outer rated current contacts of the rated current contact system, where the inner rated current contacts overhang the outer rated current contacts in the direction of the longitudinal axis, and the outer rated current contacts coaxially surround the inner rated current contacts. The circuit breaker has a high current carrying capability as well as a reliable switching-on and -off behavior, such as during and after the occurrence of a short-circuit current in the circuit breaker.

    摘要翻译: 提供一种断路器,其可以填充有淬火气体,并且具有两个接触装置,该接触装置可以相对于彼此并沿着断路器的纵向轴线移动。 接触布置形成电弧接触系统和与其并联连接的额定电流接触系统。 接触装置之一包括额定电流接触系统的内部额定电流触点和外部额定电流触点,其中内部额定电流触点在纵向轴线方向上伸出外部额定电流触点,并且外部额定电流触点同轴地环绕 内部额定电流触点。 断路器具有高电流承载能力以及可靠的接通和断开行为,例如在断路器中发生短路电流期间和之后。