公开(公告)号：US4736078A

公开(公告)日：1988-04-05

申请号：US045754

申请日：1987-04-28

申请人： Koichi Yasuoka ,  Tohru Tamagawa ,  Eiji Kaneko ,  Mitsutaka Homma ,  Satoru Yanabu ,  Takumi Funahashi

发明人： Koichi Yasuoka ,  Tohru Tamagawa ,  Eiji Kaneko ,  Mitsutaka Homma ,  Satoru Yanabu ,  Takumi Funahashi

IPC分类号： H01H1/02 ,  H01H33/66

CPC分类号： H01H1/0206 ,  H01H2001/0205

摘要： A vacuum switch having two main electrodes encased in a vacuum vessel to be operable in opening and closing the main electrodes, is provided with a contact piece made of a copper-chromium alloy secured or formed on at least one of the main electrodes. The operational property of the main electrodes is substantially improved by flowing and interrupting an electric current of a predetermined current density for a number of times through the two main electrodes for improving surface condition of the contact piece by forming a recrystallized layer over the outer surface of the contact piece.

摘要翻译： 具有封装在真空容器中的两个主要电极可操作以打开和关闭主电极的真空开关设置有由至少一个主电极上固定或形成的铜 - 铬合金制成的接触片。 通过在两个主电极之间流过和中断预定电流密度多次的电流来改善主电极的操作性能，通过在接触片的表面的外表面上形成再结晶层来改善接触片的表面状态 接触片。

公开(公告)号：US4246458A

公开(公告)日：1981-01-20

申请号：US893401

申请日：1978-04-04

申请人： Satoru Yanabu ,  Tohoru Tamagawa ,  Shigeo Souma ,  Takumi Funahashi ,  Hiroyuki Okumura ,  Nobuyuki Takahashi

发明人： Satoru Yanabu ,  Tohoru Tamagawa ,  Shigeo Souma ,  Takumi Funahashi ,  Hiroyuki Okumura ,  Nobuyuki Takahashi

IPC分类号： H01H33/66 ,  H01H33/664

CPC分类号： H01H33/664 ,  H01H33/6643 ,  H01H33/6644 ,  H01H33/6646

摘要： In a vacuum interrupter of the type comprising a vacuum vessel and a pair of separable main electrodes located in the vacuum vessel, at least one of the main electrodes being provided with a coil electrode for generating an axial magnetic field, the vacuum interrupter further comprises a flat annular intermediate electrode disposed between the main electrodes and provided with an opening at its center through which one of the main electrodes passes.

摘要翻译： 在包括真空容器和位于真空容器中的一对可分离主电极的真空断路器中，至少一个主电极设置有用于产生轴向磁场的线圈电极，真空断路器还包括一个 平面环形中间电极，设置在主电极之间并且在其中心处设置有开口，通过该开口中的一个主电极通过。

公开(公告)号：US4458121A

公开(公告)日：1984-07-03

申请号：US428949

申请日：1982-09-30

申请人： Satoru Yanabu ,  Tohoru Tamagawa ,  Eiji Kaneko ,  Takumi Funahashi

发明人： Satoru Yanabu ,  Tohoru Tamagawa ,  Eiji Kaneko ,  Takumi Funahashi

IPC分类号： H01H33/59 ,  H01H33/70 ,  H01H33/91

CPC分类号： H01H33/596 ,  H01H33/703

摘要： A DC circuit breaker of the type using a blown arc-extinguishing gas is disclosed which allows for reliable fast interruption of DC currents through the provision of arc extension current paths. The extension current paths are relatively long and are bent after the incidence of the arc-extinguishing gas on the arc. The arc is formed to extend for a long distance in a loop configuration. An auxiliary electrode short-circuits the extended arc with one auxiliary electrode being provided for each extension current path.

摘要翻译： 公开了一种使用吹灭灭弧气体的直流断路器，其允许通过提供电弧延伸电流路径可靠地快速中断直流电流。 延伸电流路径相对较长，并且在弧形灭弧气体的入射之后弯曲。 电弧形成为在环形结构中延伸长距离。 辅助电极使延伸的电弧短路，为每个延伸电流路径提供一个辅助电极。

公开(公告)号：US4442469A

公开(公告)日：1984-04-10

申请号：US409174

申请日：1982-08-18

申请人： Satoru Yanabu ,  Tohoru Tamagawa ,  Takumi Funahashi

发明人： Satoru Yanabu ,  Tohoru Tamagawa ,  Takumi Funahashi

IPC分类号： H02J1/00 ,  H01H33/14 ,  H01H33/59 ,  H02H7/22

CPC分类号： H01H33/596 ,  H01H33/143

摘要： A DC circuit breaker apparatus comprises a first interrupter and a second interrupter connected in series. A first capacitor and a discharge gap are respectively connected in parallel with the first and second interrupters. An impedance element is connected between a first junction between the first capacitor and the discharge gap and a second function between the first and second interrupter, and a second capacitor is connected in parallel with the second interrupter.

摘要翻译： 直流断路器装置包括串联连接的第一断路器和第二断路器。 第一电容器和放电间隙分别与第一和第二断路器并联连接。 阻抗元件连接在第一电容器和放电间隙之间的第一连接点和第一和第二断续器之间的第二功能，第二电容器与第二断续器并联连接。