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    • 46. 发明授权
    • Puffer-type compressed-gas circuit interrupter
    • 河豚式压缩气体断路器
    • US4139751A
    • 1979-02-13
    • US616703
    • 1975-09-25
    • Joseph R. RostronCharles F. CromerPaul J. Yuran
    • Joseph R. RostronCharles F. CromerPaul J. Yuran
    • H01H33/91H01H33/88
    • H01H33/91
    • An improved puffer-type gas-blast circuit-interrupter is provided having a movable operating cylinder assembly movable over a relatively-fixed piston structure. A high compression ratio is obtained during the opening operation by minimizing the "dead" volume of arc-quenching gas within the movable operating cylinder, and an efficient gas-flow path through the movable cylinder assembly smoothly converges through the movable nozzle throat-area into the drawn arc. A high electrical withstand capability is accomplished by using a generous radius on the lower ends of external stationary main contact fingers, and by shrouding, or shielding the stationary contact probe within the surrounding shield of the stationary contact fingers. The circuit-interrupter of the present invention is adapted for various current ratings, such as 2,000 amperes, 3,000 amperes, or 4,000 amperes, for example, by varying the number of stationary main contact fingers used surrounding the movable operating gas-cylinder. High-interrupting performance is obtained with a reduced residual gas volume at the end of the opening stroke, and, consequently, a higher gas-compression ratio is obtained. The gas-flow downstream of the nozzle throat area is confined within the cluster of stationary main contact fingers, and this cools the ejected gas to prevent voltage breakdown to electrical members at another potential. Open venting ports are provided at the upper end of the stationary contact finger cluster to prevent stagnation of the hot arced gas flowing into the stationary contact finger cluster, which thereby permits the hot arcing gases to be blown out of the way to insure good interrupting performance and a high breakdown value.
    • 提供了一种改进的气流式气体爆炸电路断路器,其具有可在相对固定的活塞结构上移动的可移动的工作缸组件。 在打开操作期间通过使可移动操作缸内的灭弧气体的“死区”体积最小化而获得高压缩比,并且通过可移动缸组件的有效气体流动通过可移动喷嘴喉部区域平滑地收敛到 绘制的弧。 通过在外部固定主接触指的下端上使用慷慨的半径,并通过遮盖或屏蔽固定接触指的周围屏蔽内的固定接触探针来实现高的电承受能力。 本发明的电路断路器适用于各种电流额定值,例如2000安培,3,000安培或4,000安培,例如通过改变围绕可移动工作气瓶的固定主触头指数。 在打开行程结束时,通过降低的残余气体体积获得高中断性能,因此获得更高的气体压缩比。 喷嘴喉部区域下游的气流被限制在固定的主接触指的簇内,这样可以冷却喷出的气体,以防止在另一个电位下对电气部件施加电压击穿。 开放式排气口设置在固定接触指状簇的上端,以防止流入固定接触指状簇的热气体停滞,由此允许热电弧气体吹出,以确保良好的中断性能 和高的击穿值。
    • 47. 发明授权
    • Multi-pole high-voltage circuit-interrupter having independent pole
tripping with a single common operating mechanism
    • 多极高压断路器具有独立的极点跳闸与单一的常见操作机构
    • US4123635A
    • 1978-10-31
    • US646796
    • 1976-01-06
    • Joseph R. Rostron
    • Joseph R. Rostron
    • H01H3/30H01H33/28
    • H01H3/3031H01H2003/3036H01H3/301H01H3/3042
    • A multi-pole high-power circuit-interrupter is provided having a single common operating mechanism therefor, and having independent pole tripping operation by associating with at least one of a plurality of the pole-units its independent ball latching means, which may be very quickly mechanically released upon a tripping operation associated with the respective one pole-unit to which said ball latching device is connected.Another important feature of the invention is the provision of a plurality of load-release latching balls, which may be quickly released from their latched position by a pneumatic releasing device, which is energized in response to electrical overload conditions existing in the respective pole-unit to provide thereby a tripping operation for the particular pole-unit, to which the ball-latching releaseable device is mechanically connected.Still another feature of the present invention is the provision of a spring-return catch-member in a ball-latch releasing device, which holds the load-release balls in their latched position, and provides a desirable quick relatching operation at the end of the closing operation of the circuit-interrupter.
    • 提供一种多极大功率断路器,其具有单一的公共操作机构,并通过与多个极单元中的至少一个相关联而具有独立的极点跳闸操作,其独立的球锁定装置可以是非常 在与所述球闩锁装置连接的相应的一个极单元相关联的跳闸操作时快速机械地释放。