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50 条记录 (耗时 0.026 秒)

    Circuit breaker with parallel resistor
    1.
    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。

    Switch mechanism
    2.
    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。

    Electrical power supply system
    3.
    发明授权
    Electrical power supply system 失效
    电源系统

    公开(公告)号：US5473494A

    公开(公告)日：1995-12-05

    申请号：US942810

    申请日：1992-09-10

    申请人： Yukio Kurosawa ,  Youichi Ohshita ,  Masaru Watanabe ,  Isao Nishida ,  Yoshihito Asai ,  Tokio Yamagiwa

    发明人： Yukio Kurosawa ,  Youichi Ohshita ,  Masaru Watanabe ,  Isao Nishida ,  Yoshihito Asai ,  Tokio Yamagiwa

    IPC分类号： H02H7/22 ,  H02H9/00 ,  H02H9/04 ,  H02H3/00

    CPC分类号： H02H7/22 ,  H02H9/005

    摘要： An electrical power supply system includes an electrical power source system connected to a bus bar and a plurality of electric power transmission systems each connected via circuit breakers to the bus bar. The supply system has overvoltage suppression equipments each installed between the transmission system and the ground. The overvoltage suppression equipment includes a switching device and an impedance connected to the switching device. The switching device in a sound transmission system is closed when the circuit breaker operates in other faulty transmission system, thereby an overvoltage being occurred on the sound system is effectively suppressed.

    摘要翻译： 电源系统包括连接到母线的电源系统和多个电力传输系统，每个电力传输系统通过断路器连接到汇流条。 供电系统具有各自安装在传输系统和地面之间的过电压抑制设备。 过压抑制设备包括开关装置和连接到开关装置的阻抗。 当断路器在其他故障传输系统中工作时，声音传输系统中的开关装置闭合，从而有效地抑制了在声音系统上发生的过电压。

    Switch operation monitoring apparatus
    4.
    发明授权
    Switch operation monitoring apparatus 失效
    开关操作监控装置

    公开(公告)号：US4864286A

    公开(公告)日：1989-09-05

    申请号：US180965

    申请日：1988-04-13

    申请人： Youichi Ohshita ,  Akira Hashimoto ,  Masanori Tsukushi ,  Yukio Kurosawa ,  Kiyoshi Okumura

    发明人： Youichi Ohshita ,  Akira Hashimoto ,  Masanori Tsukushi ,  Yukio Kurosawa ,  Kiyoshi Okumura

    IPC分类号： G01R31/327 ,  G01R31/333 ,  H01H1/00 ,  H01H33/00

    CPC分类号： H01H1/0015

    摘要： Disclosed is a switch operation monitoring apparatus for quickly and accurately detecting an abnormal operation of an actuating mechanism actuating a switch such as a power circuit breaker. A normal characteristic stroke of a moving part of the actuating mechanism is previously calculated on the basis of an interrupting current waveform, an environmental gas pressure and an actuating fluid pressure while taking into account the structure of the switch so as to use the calculated characteristic stroke as a reference stroke, and this reference stroke is compared with an actually measured characteristic stroke to decide whether the operation of the actuating mechanism actuating the switch is normal or abnormal.

    摘要翻译： 公开了一种开关操作监视装置，用于快速且准确地检测致动诸如电源断路器的开关的致动机构的异常操作。 根据中断电流波形，环境气体压力和致动流体压力，预先计算出致动机构的运动部分的正常特征行程，同时考虑到开关的结构，以便使用计算出的特征行程 作为参考行程，并将该参考行程与实际测量的特征行程进行比较，以确定致动该开关的致动机构的操作是正常还是异常。

    Puffer type gas circuit interrupter
    5.
    发明授权
    Puffer type gas circuit interrupter 失效
    河豚式气体断路器

    公开(公告)号：US5155312A

    公开(公告)日：1992-10-13

    申请号：US668128

    申请日：1991-03-12

    申请人： Akira Hashimoto ,  Youichi Ohshita ,  Kogi Ishikawa ,  Masanori Tsukushi ,  Yukio Kurosawa

    发明人： Akira Hashimoto ,  Youichi Ohshita ,  Kogi Ishikawa ,  Masanori Tsukushi ,  Yukio Kurosawa

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

    CPC分类号： H01H33/703

    摘要： An interrupter including a gas pressurizer for pressurizing a gas to flow toward a forward end of at least one contact of the interrupter, and a first orifice forming a first space with the forward end of the at least one contact for passing the gas pressurized by the gas pressurizer when a flow of electric current is interrupted. A second orifice forms a second space with the at least one contact for passing the gas which passed through the first orifice, with a chamber being formed between the first and second orifices. The chamber has an inner diameter greater than an inner diameter of the first and second orifices. At least one pressurized gas passage is provided through which a portion of the pressurized gas is supplied to the chamber without passing the first orifice so that the pressurized gas supplied to the chamber through the pressurized gas passage flows to the first space formed by the forward end of the at least one contact and the first orifice.

    摘要翻译： 一种断续器，包括用于对气体进行加压的气体加压器，以朝向所述断流器的至少一个触点的前端流动;以及第一孔口，其与所述至少一个接触件的前端形成第一空间，用于使由 当电流中断时气体加压器。 第二孔形成具有至少一个接触件的第二空间，用于使通过第一孔口的气体通过，腔室形成在第一和第二孔口之间。 腔室具有大于第一和第二孔口的内径的内径。 提供至少一个加压气体通道，通过该至少一个加压气体通道将一部分加压气体供给到室而不通过第一孔，使得通过加压气体通道供应到室的加压气体流到由前端形成的第一空间 的至少一个触点和第一孔。

    Circuit breaker
    6.
    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.

    Puffer type circuit breaker
    8.
    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。

    Puffer type gas circuit breaker
    9.
    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。