Downstream piston-type compressed-gas circuit interrupters
    4.
    发明授权
    Downstream piston-type compressed-gas circuit interrupters 失效
    下游活塞式压缩气体电路中断器

    公开(公告)号:US3557330A

    公开(公告)日:1971-01-19

    申请号:US3557330D

    申请日:1967-03-22

    CPC classification number: H01H33/32 H01H33/91

    Abstract: A piston-type of gas-blast circuit interrupter provides a cavitation region downstream of a moving tubular contact to cause exhausting flow of gas therethrough. Means are provided for a fixed open gap distance between the separated contacts to avoid excessive arc lengthening. Cooling means are employed within the moving tubular contact and downstream thereof to prevent gasclogging action and to protect a rolling rubber diaphragm sealing the moving piston.

    Contact indicating valve actuator for gas-operated circuit breakers
    5.
    发明授权
    Contact indicating valve actuator for gas-operated circuit breakers 失效
    用于气动断路器的接触指示阀执行器

    公开(公告)号:US3555226A

    公开(公告)日:1971-01-12

    申请号:US3555226D

    申请日:1968-03-21

    Inventor: SPINDLE HARVEY E

    CPC classification number: H01H9/16 H01H33/32

    Abstract: The movable contact of a gas blast operated circuit interrupter has a piston connected thereto, which is connected to either an exhaust chamber or to a high-pressure gas supply. The three-way control valve, controlling the opening and closing operations of the piston-actuated movable contact, is linked to a bellcrankshaped valve operating lever which is moved by an insulating operating rod extending down to ground potential. An indicator lever is pivotally connected to said operating lever and has a stationary pivotal support. The arrangement causes the insulating operating rod, extending down to ground potential, to indicate the opening and closed circuit positions of the separable contact structure and, additionally, effects valve operating movement.

    High voltage converter apparatus having a plurality of serially connected controllable semiconductor devices
    7.
    发明授权
    High voltage converter apparatus having a plurality of serially connected controllable semiconductor devices 失效
    具有多个串联连接的可控半导体器件的高电压转换器装置

    公开(公告)号:US3386027A

    公开(公告)日:1968-05-28

    申请号:US48574365

    申请日:1965-09-08

    CPC classification number: H02M1/092 H02M1/088 H02M7/493

    Abstract: High voltage converter apparatus of the type having a plurality of serially connected, controllable semiconductor devices. The converter apparatus includes means for providing a substantially uniform voltage distribution across the devices, and for maintaining the uniform distribution while the devices are being switched. The converter apparatus also includes firing means for switching the devices, using electromagnetic radiation to trigger the firing means.

    Abstract translation: 该类型的高电压转换器装置具有多个串联连接的可控半导体器件。 转换器装置包括用于在装置之间提供基本均匀的电压分布的装置,并且用于在装置被切换时保持均匀分布。 转换器装置还包括用于使用电磁辐射来切换装置的触发装置来触发击发装置。

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