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    • 83. 发明授权
    • Compressed-gas circuit interrupter
    • 压缩气体电路中断器
    • US3846601A
    • 1974-11-05
    • US24014472
    • 1972-03-31
    • WESTINGHOUSE ELECTRIC CORP
    • LEEDS W
    • H01H33/86H01H33/56H01H33/82H01H33/825
    • H01H33/562H01H33/82
    • A high-voltage compressed-gas circuit interrupter is provided including a tank structure, and a terminal bushing extending therein supporting an arc-extinguishing unit. A high-pressure gas-reservoir chamber is disposed adjacent the inner end of the terminal bushing for close proximity to the separable contact structure of the arc-extinguishing unit. Additional features include a blast-valve means, disposed in close proximity to the stationary contact structure, and the partial storage of high-pressure gas within the hollow stud of the terminal bushing to prevent liquefaction of a liquefiable gas under low-ambient temperature conditions. Another feature of the invention includes a rotating operating rod for low inertia, and the pilot-valve operation of the blastvalve mechanism by a cam interconnection between the pilot-rod linkage and the rotating operating tube.
    • 提供了一种高压压缩气体断路器,其包括罐结构和在其中延伸的支撑灭弧单元的端子衬套。 高压气体储存室邻近端子衬套的内端设置,靠近灭弧单元的可分离接触结构。
    • 84. 发明授权
    • Gas blast circuit breaker of the axial blast type
    • 气动爆破式气动断路器
    • US3780244A
    • 1973-12-18
    • US3780244D
    • 1972-10-18
    • GEN ELECTRIC
    • BEATTY J
    • H01H33/12H01H33/86H01H33/867H01H33/82
    • H01H33/12H01H33/86
    • A gas-blast circuit breaker comprises arcing contacts connected in parallel with the usual current-carrying contacts and means for separating the arcing contacts to establish an arc therebetween after the current-carrying contacts have separated. One of the arcing contacts comprises an orifice through which the arc extends and through which a gas blast is developed by the opening of a blast valve downstream therefrom. The other arcing contact comprises a movable contact blocking flow through the orifice until the pressure downstream from the orifice has fallen in response to blast-valve opening to a sufficiently low level that critical flow will take place through the orifice immediately following separation of the arcing contacts and establishment of the arc therebetween.
    • 气体断路器包括与通常的载流触点并联连接的电弧触点和用于分离电弧触点以在载流触点分离之后形成电弧的装置。 其中一个电弧触点包括一个孔,电弧延伸穿过该孔,并通过其在其下游的鼓风阀的打开而使气体吹出。 另一个电弧触点包括通过孔口的可动接触件阻塞流,直到孔口下游的压力响应于鼓风阀开度而下降到足够低的水平,临时流动将通过紧接着分离电弧触点之后的孔口发生 并在其间建立电弧。
    • 87. 发明授权
    • Gas-blast circuit breakers
    • 气体断路器
    • US3649792A
    • 1972-03-14
    • US3649792D
    • 1969-12-10
    • COQ NV
    • FROWEIN EGBERTUS A
    • H01H33/83H01H33/867H01H33/873H01H33/86
    • H01H33/83
    • A gas-blast circuit breaker comprising, within a switching chamber permanently filled with extinguishing gas under overpressure, a first and a second switching contact, the switching-off action of said switching contacts being effected by pistons which are spring biased against such action and are mounted within cylinders associated with said switching contacts, respectively, at least one of said cylinders being permanently in open communication with said switching chamber, a locking member being provided which is adapted to be released by a switching-off command and which is holding the switching contacts in their respective rest positions corresponding to the closed condition of the circuit breaker.
    • 一种气体断路器,包括在超压下永久充满灭火气体的开关室内具有第一和第二开关触点,所述开关触点的关断动作由针对这种动作而被弹簧偏置的活塞实现,并且是 安装在与所述开关触点相关联的气缸内,所述气缸中的至少一个与所述开关室永久地开放连通;提供锁定构件,所述锁定构件适于通过断开指令释放并保持所述开关 触点处于与断路器的闭合状态对应的各自的静止位置。
    • 88. 发明授权
    • Gas-blast circuit breaker with double-nozzle contact system
    • 具有双喷嘴接触系统的气体断路器
    • US3649790A
    • 1972-03-14
    • US3649790D
    • 1970-10-19
    • BBC BROWN BOVERI & CIE
    • FRIEDRICH EDMUNDSTRUBIN HARALD
    • H01H33/12H01H33/825H01H33/86H01H33/867H01H33/873H01H33/80
    • H01H33/122H01H33/86
    • A gas-blast circuit breaker includes within a contact chamber which is filled with a pressurized arc extinguishing gas a hollow shaft rotatable about its axis, a pair of normally open power switching contact structures located at opposite sides of the shaft and which are connectable temporarily in series during an opening operation of the breaker, and a normally closed supplementary switching means of the knife blade type arranged in a current path electrically in parallel with the power switching contact structures. Each of the power switching contact structures includes a movable contact carried by the rotatable shaft and a nozzle communicating with the interior of the shaft for carrying off the flow of arc extinguishing gas when the movable contact disengages from its associated stationary contact, and the supplementary switching means includes a movable contact blade carried by the rotatable shaft in association with a stationary contact. The operating sequence of the switches during a circuit breaking operation is that when the hollow shaft is rotated, the circuit through the power switching contact structures is completed before the circuit through the supplementary switching means is opened thereby enabling the contacts of the latter to open in an arc-free manner and transfer the load current to the circuit through the then in series connected power switching contact structures.
    • 气体断路器包括在接触室内,其中填充有加压灭弧气体,其可围绕其轴线旋转的中空轴,位于轴的相对侧处的一对常开的动力开关接触结构,其可临时连接 断路器的打开操作期间的串联连接,以及布置在与电源开关接触结构并联的电流通路中的刀片式的常闭辅助开关装置。 每个电源切换接触结构包括由可旋转轴承载的可动触头和与轴内部连通的喷嘴,用于当可动触头与其相关联的固定触点脱离时,用于驱除灭弧气体的流动,并且辅助开关 装置包括与静止触点相关联的由可旋转轴承载的可动接触片。 在断路操作期间开关的操作顺序是当中空轴旋转时,通过辅助开关装置的电路被打开之前通过功率开关触点结构的电路完成,从而使得后者的触点能够打开 无电弧的方式,并通过当时串联的功率开关接触结构将负载电流转移到电路。
    • 90. 发明授权
    • Compressed-gas circuit interrupter having two component containing legs upstanding from a grounded u-shaped high pressure tank
    • 压缩气体电路中断器,具有两个组件,包括接地U形高压罐中的LEGS UPSTANDING
    • US3596028A
    • 1971-07-27
    • US3596028D
    • 1968-12-09
    • WESTINGHOUSE ELECTRIC CORP
    • KANE RICHARD EREESE FRANK L
    • H01H33/86H01H33/56H01H33/867H01H33/873H01H33/74
    • H01H33/56
    • A compressed-gas circuit interrupter has a generally U-shape with interrupting elements, or terminal-bushing structures, disposed in the upstanding legs of the ''''U,'''' depending upon the rating requirements; and a grounded high-pressure chamber constitutes the lower bend of the U-shaped circuit interrupter. The compressed-gas circuit interrupter is of the dual-pressure type in which the one or more pairs of contacts are separated in a high-pressure gaseous environment, and the high-pressure gas exhausts through one or both of the separable contacts themselves. Downstream blast valves control the continued exhaust of gas through the separable contact structure, and in the fully open-circuit position of the interrupter, the contact space contains high-pressure gas, resulting in reduced separation distance between the separated contacts. For the lower ratings, a terminal bushing, preferably of the gaseous type, constitutes one of the legs of the ''''U'''' and the interrupting elements are disposed along the other leg of the U. For the higher ratings, both legs of the U may comprise one or more serially related interrupting elements to provide, where desired, a number of serially related arc-extinguishing units. The movable contact structure is preferably actuated pneumatically by a piston structure disposed at the upper end of the arc-extinguishing side of the interrupter, which is controlled by a three-way tripping control valve initiated by an insulating operating rod extending down to ground potential, and mechanically connected to the other phase units of the circuit interrupter, a common valve actuator employed. The legs of the U comprise an outer weatherproof insulating shell and an inner insulating tube, which may be under tension, surrounding the serially related arc-extinguishing units. As stated, the inner insulating tube contains high-pressure gas immediately surrounding the separable contact structure, so that high-pressure gas is immediately available at the contacts for the interrupting operation upon their separation.