公开(公告)号：US5691521A

公开(公告)日：1997-11-25

申请号：US419542

申请日：1995-04-10

申请人： Katsuhiro Komuro ,  Yoshitaka Kojima ,  Yukio Kurosawa ,  Shunkichi Endoo ,  Tooru Tanimizu ,  Yoshimi Hakamata ,  Katsumi Kuroda

发明人： Katsuhiro Komuro ,  Yoshitaka Kojima ,  Yukio Kurosawa ,  Shunkichi Endoo ,  Tooru Tanimizu ,  Yoshimi Hakamata ,  Katsumi Kuroda

IPC分类号： H01H1/02 ,  H01H11/04 ,  H01H33/66 ,  H01H33/664

CPC分类号： H01H33/664 ,  H01H1/0203 ,  H01H11/048 ,  H01H33/6642

摘要： A vacuum switch having a fixed side electrode unit and a movable side electrode unit mounted in a vacuum vessel. Each electrode unit includes an arc electrode, an arc electrode supporting member for supporting the arc electrode, a coil electrode and a conducting rod. Joining portions between the arc electrode and the arc electrode supporting member, the coil electrode and the conducting rod are integrally and directly formed metallurgically by solid phase diffusion using a hot isostatic process. A vacuum circuit breaker may be constructed incorporating the vacuum switch.

摘要翻译： 一种具有固定侧电极单元和安装在真空容器中的可动侧电极单元的真空开关。 每个电极单元包括弧形电极，用于支撑电弧电极的弧形电极支撑构件，线圈电极和导电棒。 通过使用热等静压工艺的固相扩散，在电弧电极和电弧电极支撑构件，线圈电极和导电棒之间的连接部分一体地并且直接地通过固相扩散形成。 可以构造真空断路器并入真空开关。

公开(公告)号：US5379014A

公开(公告)日：1995-01-03

申请号：US41470

申请日：1993-04-02

申请人： Takashi Sato ,  Yukio Kurosawa ,  Kouji Suzuki ,  Akira Hashimoto ,  Shunkichi Endoo

发明人： Takashi Sato ,  Yukio Kurosawa ,  Kouji Suzuki ,  Akira Hashimoto ,  Shunkichi Endoo

IPC分类号： H01H33/66 ,  H01H33/59 ,  H01H33/664 ,  H01H9/00

CPC分类号： H01H33/6641 ,  H01H33/596

摘要： A vacuum circuit breaker comprising an external coil which is arranged outside a vacuum interrupter, and a power supply circuit which causes current to flow through the external coil. An overcurrent flowing through the main circuit of the circuit breaker, which leads to a load, is detected by an overcurrent tripping device so as to separate the movable electrode of the vacuum interrupter from the fixed electrode thereof and to subject a striking electric arc to a magnetic flux generated axially of the vacuum interrupter by the electrodes themselves. Thereafter, a trigger gap is ignited by a signal delivered from the overcurrent tripping device, so as to introduce a reverse current into the vacuum interrupter. Herein, the trigger gap is ignited by a signal delivered from the overcurrent tripping device, in order that the zero point of currents may be formed at the point of time at which the axial magnetic flux has been canceled by the resulting current of the external coil. Since the axial magnetic flux remaining at the zero point of the currents is nullified, charged particles are not hindered from diffusing radially of the vacuum interrupter, and hence, an enhanced breaking performance is attained.

摘要翻译： 一种真空断路器，包括设置在真空断续器外部的外部线圈和使电流流过外部线圈的电源电路。 通过过电流跳闸装置检测出通过断路器的主电路流过负载的过电流，以将真空断路器的可动电极与其固定电极分离，并将击打电弧施加到 由电极本身在真空断路器的轴向产生磁通。 此后，通过从过电流跳闸装置传递的信号点燃触发间隙，以便将反向电流引入真空断路器。 这里，触发间隙由从过电流跳闸装置传递的信号点燃，以便可以在由外部线圈产生的电流消除轴向磁通量的时间点形成电流零点 。 由于在电流零点处残留的轴向磁通无效，所以带电粒子不会妨碍真空断路器的径向扩散，因此获得了提高的断开性能。