公开(公告)号：US3745281A

公开(公告)日：1973-07-10

申请号：US3745281D

申请日：1971-02-22

申请人： HITACHI LTD

发明人： YOSHIOKA Y

IPC分类号： H01H33/88 ,  H01H33/91 ,  H01H33/915 ,  H01H33/82

CPC分类号： H01H33/882 ,  H01H33/91 ,  H01H2033/888

摘要： A gas breaker wherein an electromagnetic force is generated between a primary coil fixed to an operating rod manipulating a movable contact element and an end ring or a short ring fixed to a floating puffer piston slidably supported against said operating rod, said floating puffer piston being driven to compress arc-extinguishing gas in said puffer cylinder by an electromagnetic repulsive force and an arc is extinguished by compressed arc extinguishing gas which is blasted to the contact element. A movement of the puffer piston for compressing arcextinguishing gas is shut off from that of the operating rod, so that the electromagnetic repulsive force is utilized for compression of the arc-extinguishing gas in the puffer cylinder, whereby the electromagnetic force is not effected to the operating rod, thus resulting in making the control system for the operating rod more compact.

摘要翻译： 一种气体破碎器，其中在固定到操作可动接触元件的操作杆的初级线圈和固定到可滑动地支撑在所述操作杆上的浮动冲击活塞的端环或短环之间产生电磁力，所述浮动冲击活塞被驱动 通过电磁排斥力压缩所述吹气缸中的灭弧气体，并且通过对接触元件喷射的压缩的灭弧气体熄灭电弧。

公开(公告)号：US3740506A

公开(公告)日：1973-06-19

申请号：US3740506D

申请日：1972-06-20

申请人： HITACHI LTD

发明人： KASHIMURA K ,  YOSHIOKA Y ,  HIRASAWA K

IPC分类号： H01H33/30 ,  H01H35/38

CPC分类号： H01H33/30

摘要： A circuit breaker having an actuating system comprising a signal responsive valve member of large diameter and a making force imparting valve member of small diameter connected to each other by an actuating rod so that a first differential force relationship can be established therebetween. A movable valve seat of diameter smaller than that of the making force imparting valve member is movable toward and away from the signal responsive valve member so that a second differential force relationship can be established between the two valve members when the movable valve seat engages the signal responsive valve member to limit the effective area of the latter. The movable valve seat is moved toward and away from the signal responsive valve member and fluid under pressure applied to the signal responsive valve member is suitably controlled so as to selectively bias the actuating rod in one of the making and breaking directions. A control valve member is disposed in proximity to the movable valve seat so that it moves in response to the movement of the actuating rod in the breaking direction for controlling the application of the fluid pressure to the signal responsive valve member. This control valve member acts to reduce the moving distance of the movable valve seat following the movement of the signal responsive valve member so that the movable valve seat can take a floating position ready to move in the making direction.

摘要翻译： 一种具有致动系统的断路器，其包括大直径的信号响应阀构件和通过致动杆彼此连接的小直径的施力赋予阀构件，从而可以在它们之间建立第一差分力关系。 直径小于制动力阀构件的可移动阀座可以朝向和远离信号响应阀构件移动，使得当可动阀座接合信号时可以在两个阀构件之间建立第二差速力关系 响应阀构件来限制后者的有效面积。 可移动阀座朝向和远离信号响应阀构件移动，并且适当地控制施加到信号响应阀构件的压力下的流体，以便在制动和断开方向之一上选择性地偏压致动杆。 控制阀构件设置在可动阀座附近，使得其响应于致动杆在断开方向上的移动而移动，以控制对信号响应阀构件施加流体压力。 该控制阀构件用于减小可动阀座在信号响应阀构件的移动之后的移动距离，使得可动阀座能够准备好沿着制造方向移动的浮动位置。

公开(公告)号：US3721786A

公开(公告)日：1973-03-20

申请号：US20323471

申请日：1971-11-30

申请人： HITACHI LTD

发明人： YOSHIOKA Y

IPC分类号： H01H33/70 ,  F28G13/00 ,  H01H20060101 ,  H01H33/28 ,  H01H33/88 ,  H01H33/91 ,  H01H33/915

CPC分类号： H01H33/91 ,  H01H33/285 ,  H01H33/882

摘要： A puffer type circuit breaker is provided in which an arc extinguishing gas is compressed and released into an arc between contacts upon the initiation of an interrupting operation. The means for compressing the arc extinguishing gas is actuated by an electromagnetic driving means comprising at least two electromagnetic driving units provided by a primary coil and a short ring electromagnetically coupled to said primary coil, and the electromagnetic driving means exhibits a stepped electromagnetic driving force characteristic in response to the displacement in the driving direction when a predetermined current flows in the primary coil. Thus, current arcs for a range of small and medium currents may be extinguished by means of gases compressed by the driving forces generated in the neighborhood of the upper step portion of the stepped electromagnetic driving force characteristic and directed to the current arcs, while current arcs for a range of large currents may be extinguished by means of gases compressed by the driving forces generated in the neighborhood of the lower step portion of the stepped electromagnetic driving force characteristic and directed to the current arcs.

摘要翻译： 提供了一种波纹式断路器，其中在开始中断操作时，灭弧气体被压缩并释放到触点之间的电弧中。 用于压缩灭弧气体的装置由包括由初级线圈提供的至少两个电磁驱动单元和电磁耦合到所述初级线圈的短环的电磁驱动装置致动，并且电磁驱动装置呈现阶梯式电磁驱动力特性 响应于当预定电流在初级线圈中流动时在驱动方向上的位移。 因此，用于一小段和中等电流范围的电流可以通过在步进电磁驱动力特性的上阶梯部分附近产生的驱动力压缩的气体熄灭并且被引导到当前电弧，而当前电弧 因为通过在步进电磁驱动力特性的下阶段附近产生的驱动力压缩的气体被引导到目前的电弧，所以可以使大范围的大电流熄灭。

公开(公告)号：US3792220A

公开(公告)日：1974-02-12

申请号：US3792220D

申请日：1972-09-19

申请人： HITACHI LTD

发明人： YOSHIOKA Y ,  OKUYAMA K

IPC分类号： H01H33/64 ,  H01H33/66 ,  H02G15/24 ,  H01H31/32 ,  H02G15/22

CPC分类号： H02G15/24 ,  H01H33/64 ,  H01H33/66

摘要： A disconnecting switch is provided in the connecting part between a cable kept at extremely low temperature by means of extremely low temperature coolant and an electric apparatus kept at normal room temperature such as a gas-filled duct transmission line, transformer etc., which disconnecting switch is opened when current is interrupted. And the disconnecting switch is housed in a vacuum casing.

摘要翻译： 通过极低温度的冷却剂和保持在正常室温的电气设备（例如气体填充的管道传输线，变压器等）在连接部分之间的连接部分设置断开开关，断开开关 当电流中断时打开。 并且断开开关被容纳在真空壳体中。