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50 条记录 (耗时 0.023 秒)

    Puffer type circuit breaker
    1.
    发明授权
    Puffer type circuit breaker 失效
    河豚式断路器

    公开(公告)号：US4939322A

    公开(公告)日：1990-07-03

    申请号：US326652

    申请日：1989-03-21

    申请人： Katsuichi Kashimura ,  Minori Sato ,  Osamu Koyanagi ,  Yukio Kurosawa

    发明人： Katsuichi Kashimura ,  Minori Sato ,  Osamu Koyanagi ,  Yukio Kurosawa

    IPC分类号： H01H33/70 ,  H01H33/91 ,  H01H33/915

    CPC分类号： H01H33/91 ,  H01H33/7023

    摘要： The present invention relates to a puffer type circuit breaker having a high voltage and large capacity, which is provided with an insulating nozzle for blowing a arc-extinguishing gas of high pressure generated by separating a movable contactor from a fixed contactor. The fixed contactor has a larger diameter portion formed on the base portion thereof and a smaller diameter portion formed at the tip end thereof, and the insulating portion has a first throat portion adjusted by the smaller diameter portion and a second throat portion located at the downstream side of the first throat portion and adjusted by the larger diameter portion, thereby allowing the gas inlet portion to be formed by the diameter difference between the first throat portion and the smaller diameter portion which is in such manner that the second throat portion is adjusted by the larger diameter portion. By virtue of these features, when the contactors are separated from each other, even if the arc-extinguishing gas of high pressure flows into the space between the first throat portion and the second throat portion, the rapid gas flow is not generated therein. Accordingly, since the arc-extinguishing gas is prevented from lowering the gas density on the tip of the fixed contactor, it is possible to improve the breaking ability of small capacitive current.

    摘要翻译： 本发明涉及一种具有高电压和大容量的河豚式断路器，其具有用于吹送通过将活动接触器与固定接触器分离而产生的高压灭弧气体的绝缘喷嘴。 固定接触器在其基部形成较大的直径部分，在其前端形成较小直径的部分，绝缘部分具有由较小直径部分调节的第一喉部和位于下游的第二喉部 并且通过较大直径部分进行调节，从而允许气体入口部分由第一喉部和较小直径部分之间的直径差形成，其中第二喉部分和第二喉部分之间的直径差是以第二喉部被第 较大的直径部分。 由于这些特征，当接触器彼此分离时，即使高压灭弧气体流入第一喉部和第二喉部之间的空间，也不会在其中产生快速气体流动。 因此，由于防止灭弧气体降低固定接触器的尖端上的气体密度，因此可以提高小电容电流的断开能力。

    Circuit breaker
    4.
    发明授权
    Circuit breaker 失效

    公开(公告)号：US5039831A

    公开(公告)日：1991-08-13

    申请号：US328559

    申请日：1989-03-24

    申请人： Minori Sato ,  Kastuichi Kashimura ,  Masanori Tsukushi ,  Yukio Kurosawa ,  Kazuhiro Saito ,  Osamu Koyanagi ,  Isao Nishida

    发明人： Minori Sato ,  Kastuichi Kashimura ,  Masanori Tsukushi ,  Yukio Kurosawa ,  Kazuhiro Saito ,  Osamu Koyanagi ,  Isao Nishida

    IPC分类号： H01H33/16 ,  H01H33/24 ,  H02B11/26

    CPC分类号： H02B11/26 ,  H01H33/16 ,  H01H33/24 ,  H02B13/035

    摘要： In a circuit breaker in which an interrupting device, a resistor device and a capacitor device are connected in parallel, a shield device is arranged to shield the interrupting device and the resistor device and comprises a first shield for shielding the stationary main contact and stationary resistor contact and a second shield for shielding the movable main contact and movable resistor contact. Each of the first shield and the second shield comprises a large shield portion and a small shield portion, and the small shield portions are arranged between the large shield portions. The small shield portion terminates in the vicinity of the top of the main contact and of the top of the resistor contact. The small shield portion comprises wide portions situated substantially in the direction of an axis joining centers of the main contact and resistor contact and narrow portions situated substantially in the direction perpendicular to the axis. The width of the narrow portions is smaller than the width of the wide portions, and at least a part of the capacitor device is arranged over the narrow portions.In the circuit breaker, since the capacitor device is arranged over the narrow portions, the space for arranging the capacitor device is larger than the conventional circuit breaker, the arrangement of the isoelectric liens is not disturbed or disordered locally in the vicinity of the top of the shield of the stationary main contact and in the vicinity of the movable main contact and high dielectric strength between the main contacts is obtained.

    Switch mechanism
    5.
    发明授权
    Switch mechanism 失效
    开关机构

    公开(公告)号：US5502290A

    公开(公告)日：1996-03-26

    申请号：US483878

    申请日：1995-06-07

    申请人： Osamu Koyanagi ,  Kunio Hirasawa ,  Masanori Tsukushi ,  Yukio Kurosawa ,  Tadashi Sato ,  Youichi Ohshita

    发明人： Osamu Koyanagi ,  Kunio Hirasawa ,  Masanori Tsukushi ,  Yukio Kurosawa ,  Tadashi Sato ,  Youichi Ohshita

    IPC分类号： H01H33/34 ,  H01H33/56

    CPC分类号： H01H33/34 ,  H01H33/563

    摘要： A switching mechanism for use e.g. in a circuit breaker of an underground electric substation has a movable rod which causes opening and closing of an electrical contact and a hydraulic operating system. The hydraulic operating system uses a hydraulic fluid which has a high flammability temperature or is incombustible. Thus, even if such fluid leaks from the hydraulic operating system, the risk of fire or explosion is minimized. The hydraulic operating system may have a sealed tank for the fluid, preferably with a variable volume expansion chamber. In a further development, the hydraulic operating system and possibly parts of the movable rod, is enclosed in a casing which is sealed and is filled with a gas which does not support combustion therein. Thus, the risk of fire or explosion is further reduced. The casing may have a variable volume expansion chamber.

    摘要翻译： 一种切换机制。 在地下电力变电站的断路器中具有使电触头和液压操作系统打开和关闭的活动杆。 液压操作系统使用具有高可燃性温度或不燃的液压油。 因此，即使这种液体从液压操作系统泄漏，也会使火灾或爆炸的风险最小化。 液压操作系统可以具有用于流体的密封罐，优选地具有可变体积膨胀室。 在进一步的发展中，液压操作系统和可能的可移动杆的部分被封装在密封的壳体中并且填充有不支持燃烧的气体。 因此，进一步降低了火灾或爆炸的危险。 壳体可以具有可变体积膨胀室。

    Puffer type gas circuit breaker
    6.
    发明授权
    Puffer type gas circuit breaker 失效
    河豚式气体断路器

    公开(公告)号：US5814781A

    公开(公告)日：1998-09-29

    申请号：US594491

    申请日：1996-01-31

    申请人： Osamu Koyanagi ,  Kastuichi Kashimura ,  Yoshihito Asai ,  Yukio Kurosawa ,  Goro Daimon ,  Kenji Tsuchiya ,  Eisaku Mizufune ,  Kogi Ishikawa

    发明人： Osamu Koyanagi ,  Kastuichi Kashimura ,  Yoshihito Asai ,  Yukio Kurosawa ,  Goro Daimon ,  Kenji Tsuchiya ,  Eisaku Mizufune ,  Kogi Ishikawa

    IPC分类号： H01H33/91 ,  H01H33/42 ,  H01H33/90 ,  H01H33/88

    CPC分类号： H01H33/904

    摘要： A puffer type gas-blast circuit breaker includes a guide section arranged at a coupler section between a shaft section of a puffer cylinder and a dielectric operating rod, for guiding both in the axis direction of a current interruption section and in the radial direction thereof, thereby to suppress or eliminate the occurrence of misalignment of center axis between movable components and fixed ones thus causing a gap to remain constant between a dielectric nozzle and a fixed arc contact. With such an arrangement, the gap between the nozzle and the contact can be kept uniform even when the pole-to-pole distance is increased with an increase in the high withstanding voltage of the breaker. This ensures that the surface-creeping electric field on the inner surface of the dielectric nozzle can be at a desired design value, thus enabling to provide a stable pole-to-pole insulation characteristic during current interruption operations.

    摘要翻译： 吹气式气体爆破断路器包括引导部分，该引导部分布置在吹气筒的轴部和介电操作杆之间的耦合部分处，用于沿电流中断部分的轴线方向和沿其径向方向引导， 从而抑制或消除可移动部件和固定部件之间的中心轴的不对准的发生，从而使得间隙在介电喷嘴和固定电弧接触之间保持恒定。 通过这样的布置，即使随着断路器的高耐受电压的增加，极点距离增加，喷嘴和接触件之间的间隙也可以保持均匀。 这确保了电介质喷嘴的内表面上的表面蠕变电场可以处于所需的设计值，从而能够在电流中断操作期间提供稳定的极 - 极绝缘特性。

    Circuit breaker with parallel resistor
    7.
    发明授权
    Circuit breaker with parallel resistor 失效
    具有并联电阻的断路器

    公开(公告)号：US5391930A

    公开(公告)日：1995-02-21

    申请号：US887937

    申请日：1992-05-26

    申请人： Youichi Ohshita ,  Katuichi Kashimura ,  Akira Hashimoto ,  Osamu Koyanagi ,  Yukio Kurosawa ,  Isao Nishida

    发明人： Youichi Ohshita ,  Katuichi Kashimura ,  Akira Hashimoto ,  Osamu Koyanagi ,  Yukio Kurosawa ,  Isao Nishida

    IPC分类号： H01H33/16 ,  H01H33/24

    CPC分类号： H01H33/168 ,  H01H33/24 ,  Y10T307/76

    摘要： A circuit breaker with a parallel resistor which fulfills with a simple structure incompatible requirements for a resistance circuit making contact with regard to maintenance of the dielectric strength and prearcing characteristic between electrodes. A resistance circuit making contact 2 and a resistance circuit breaking contact 3 are electrically connected in parallel, one end of the parallel circuit is connected to one end of a common resistor and the other end of the parallel circuit and the other end of the resistor are connected to the respective ends of a main contact 1. After the opening of the resistance circuit making contact 2 the resistance circuit breaking contact 3 is still closed.

    摘要翻译： 具有并联电阻器的断路器，其结构简单，与电阻电路不兼容的要求相关，以保持电极之间的介电强度和预焊特性。 使接点2和电阻断路触头3的电阻电路并联电连接，并联电路的一端连接到公共电阻的一端，并联电路的另一端和电阻的另一端 连接到主触点1的相应端。在电阻回路接通2打开之后，电阻断路触点3仍然闭合。

    Gas circuit breaker
    8.
    发明授权
    Gas circuit breaker 失效

    公开(公告)号：US5079392A

    公开(公告)日：1992-01-07

    申请号：US543440

    申请日：1990-06-26

    申请人： Masanori Tsukushi ,  Osamu Koyanagi ,  Yashuharu Seki ,  Yukio Kurosawa

    发明人： Masanori Tsukushi ,  Osamu Koyanagi ,  Yashuharu Seki ,  Yukio Kurosawa

    IPC分类号： H01H33/90 ,  H01H33/91 ,  H01H33/915

    CPC分类号： H01H33/91 ,  H01H33/901

    摘要： A gas circuit breaker comprising a pair of contactors contact portions of which are separable relatively from each other, an insulating nozzle of an electrically insulating material surrounding the contact portions of said contactors so as to guide a flow of gas, and a puffer chamber for compressing the gas in conjunction with a separating operation of the contact portions so as to supply it under guidance of the insulating nozzle, the gas from the puffer chamber being exhausted through exhaust passages passing through a hollow portion of the one contactor located within the insulating nozzle, wherein the exhaust passages are formed between the puffer chamber and the one contactor, and the gas circuit breaker further comprises block means serving to close during an initial stage of the separating operation and open afterward exhaust ports formed at ends of the exhaust passages located on the downstream side of the gas flow. This makes it possible to reduce the flow resistance to the gas flow used for arc extinguishment in cooperation with an arc-extinguishing gas flow passing through a throat portion of the insulating nozzle as well as to reduce a force required for operation.

    Puffer type gas circuit breaker, contact cover and insulated nozzle of the breaker
    9.
    发明授权
    Puffer type gas circuit breaker, contact cover and insulated nozzle of the breaker 失效
    河豚式气体断路器，接触盖和断路器绝缘喷嘴

    公开(公告)号：US5079391A

    公开(公告)日：1992-01-07

    申请号：US604227

    申请日：1990-10-29

    申请人： Osamu Koyanagi ,  Masanori Tsukushi ,  Yasuharu Seki ,  Yukio Kurosawa

    发明人： Osamu Koyanagi ,  Masanori Tsukushi ,  Yasuharu Seki ,  Yukio Kurosawa

    IPC分类号： H01H33/70 ,  H01H33/91 ,  H01H33/915

    CPC分类号： H01H33/91 ,  H01H33/7015

    摘要： A puffer type gas circuit breaker having at least one pair of a stationary contact and a movable contact capable of being separated from each other, a pressure producing section including a puffer cylinder and a puffer piston. The puffer cylinder is connected to the movable contact and serves to compress an arc extinguishing gas blown to an arc generated between the contacts at the time of current breaking. The breaker also has a cover surrounding the movable contact, an insulated nozzle extending from the puffer cylinder and surrounding the cover and the stationary contact to form a flow passage through which the compressed gas is supplied from the puffer cylinder to the generated arc, and a flow straightening member provided in said flow passage. The flow straightening member extends from the puffer cylinder and is mounted on the cover, and the flow passage has an expanded section having a gas flow sectional area larger than that of the section of the flow passage upstream of the expanded section.

    摘要翻译： 一种吹气式气体断路器，其具有至少一对固定触点和能够彼此分离的可动触头，压力产生部分包括吹气缸和冲压活塞。 吹气圆筒连接到可动触头，用于在当前断裂时压缩在触头之间产生的电弧中被吹送的灭弧气体。 断路器还具有围绕可动触头的盖，从吹气缸延伸并围绕盖和固定触点的绝缘喷嘴，以形成流动通道，压缩气体通过该流路从吹气缸供应到产生的电弧， 设置在所述流路中的流动矫直构件。 流动矫正构件从吹气缸延伸并安装在盖上，并且流动通道具有膨胀部分，其具有比扩张部分上游的流动通道部分的气体流动截面积大的膨胀部分。