Grounding switch gear device
    1.
    发明授权
    Grounding switch gear device 失效
    接地开关齿轮装置

    公开(公告)号:US5543597A

    公开(公告)日:1996-08-06

    申请号:US225979

    申请日:1994-04-12

    摘要: A first puffer chamber is formed by a puffer cylinder having a substantially cylindrical flange portion and a shaft portion, and a fixedly disposed piston. The piston is formed in a cylindrical shape sealed with respect to an external space, and is constituted to be accommodated in the flange portion of the puffer cylinder at the circuit breaking position of the circuit breaking unit. The internal space of the piston is constituted as a second puffer chamber which is designed to communicate with the first puffer chamber. The gas accumulated in the second puffer chamber is continuously blown out toward between the electrodes, thereby prolonging an effective interruptable arc time span without increasing the size of the circuit interrupting unit and operating unit.

    摘要翻译: 第一吹气室由具有基本上圆柱形的凸缘部分和轴部分以及固定设置的活塞的吹气缸形成。 活塞形成为相对于外部空间密封的圆筒形状,并且构成为在断路单元的断路位置容纳在吹风缸的凸缘部。 活塞的内部空间构成为被设计成与第一吹气室连通的第二冲洗室。 积聚在第二吹气室中的气体朝向电极之间持续吹出,从而延长了有效的可中断电弧时间跨度,而不增加电路中断单元和操作单元的尺寸。

    High-voltage DC circuit breaker apparatus
    2.
    发明授权
    High-voltage DC circuit breaker apparatus 失效
    高压直流断路器

    公开(公告)号:US4578730A

    公开(公告)日:1986-03-25

    申请号:US541245

    申请日:1983-10-12

    IPC分类号: H01H33/59 H02H3/00

    CPC分类号: H01H33/596 Y10T307/832

    摘要: There is disclosed a high-voltage DC circuit breaker apparatus with reverse current insertion system by line voltage charge, which comprises a commutation switch, a series circuit of a capacitor, a reactor and a switch connected in parallel with the commutation switch, a resistor connected so as to charge the capacitor by a line voltage. The charging time constant of the capacitor determined by the capacity of the capacitor and the resistor is used as a reference in a manner so that the rise time constant of the line voltage is smaller than the charging time constant of the capacitor, and the rise time constant of the line current is larger than the charging time constant of the capacitor, thereby interrupting the fault current without fail.

    摘要翻译: 公开了一种具有通过线路电压充电的反向电流插入系统的高压DC断路器装置,其包括换向开关,电容器的串联电路,电抗器和与换向开关并联的开关,电阻器连接 以便通过线路电压对电容器充电。 以电容器和电阻器的容量确定的电容器的充电时间常数用作参考,使得线路电压的上升时间常数小于电容器的充电时间常数,上升时间 线电流的常数大于电容器的充电时间常数,从而中断故障电流。

    D.C. Circuit breaker
    3.
    发明授权
    D.C. Circuit breaker 失效
    直流断路器

    公开(公告)号:US4216513A

    公开(公告)日:1980-08-05

    申请号:US906263

    申请日:1978-05-15

    IPC分类号: H01H33/59 H02H7/22

    CPC分类号: H01H33/596

    摘要: A capacitor and an inductance are connected in parallel with an interruptor disposed in a d-c circuit before the interruptor is mechanically opened. An oscillating current i.sub.o occurs in a circuit composed of the interruptor, the capacitor having a predetermined capacitance and the inductance having a predetermined amount of inductance when the interruptor is mechanically opened. The amplitude of the oscillating current i.sub.o is gradually increased and is superposed on a d-c current I. The interruptor breaks itself when the sum of the d-c current I and the oscillating current i.sub.o across the interruptor reaches zero.

    摘要翻译: 在断开器被机械打开之前,电容器和电感与设置在d-c电路中的中断器并联连接。 在由断路器组成的电路中产生振荡电流io,电容器具有预定的电容,并且当断路器被机械地打开时,电感具有预定的电感量。 振荡电流io的幅度逐渐增大并叠加在d-c电流I上。当d-c电流I和跨过中断器的振荡电流io的和达到零时,断路器自身断开。

    Puffer-type gas-blast circuit breaker
    4.
    发明授权
    Puffer-type gas-blast circuit breaker 失效
    吹气式气体断路器

    公开(公告)号:US3996439A

    公开(公告)日:1976-12-07

    申请号:US539080

    申请日:1975-01-07

    CPC分类号: H01H33/91 H01H33/76

    摘要: A circuit breaker comprising an interrupting unit mounted in a vessel filled with a charge of arc extinguishing gas of uniform pressure and operating such that when the circuit is broken the arc extinguishing gas is compressed to increase its pressure, so that the high pressure gas will be blown against an electric arc established between the contacts to extinguish the same. The circuit breaker is formed therein with two paths for the high pressure gas blown against the arc, each path having an insulating nozzle mounted in it.

    摘要翻译: 一种断路器,包括一个中断单元,该中断单元安装在充满压力均匀的灭弧气体的容器中并且操作使得当电路断开时,灭弧气体被压缩以增加其压力,使得高压气体将 吹在触点之间建立的电弧以使其熄灭。 断路器在其中形成有用于高压气体吹向电弧的两条路径,每个路径上均安装有绝缘喷嘴。

    DC circuit breaker
    5.
    发明授权
    DC circuit breaker 失效
    直流断路器

    公开(公告)号:US4618905A

    公开(公告)日:1986-10-21

    申请号:US653051

    申请日:1984-09-21

    IPC分类号: H01H33/59 H02H7/00

    CPC分类号: H01H33/596

    摘要: A line voltage charging type DC circuit breaker for use in DC transmission, having a series circuit connected in parallel with a commutation breaker, the series circuit being constituted by a capacitor to be charged by a line voltage, a reactor, and a circuit-closing means connected in series with each other, the DC circuit breaker comprising a circuit for charging the capacitor, the charging circuit including a current direction restricting circuit for restricting a current flowing through the restricting circuit only in one direction and a reverse control circuit for controlling the current direction restricting circuit to reverse the direction of a current for charging the capacitor in accordance with the power flow reversal control of the DC transmission.

    摘要翻译: 一种用于直流传输的线路电压充电型直流断路器,具有与换向断路器并联连接的串联电路,串联电路由要由线路电压充电的电容器,电抗器和电路闭合 所述DC断路器包括用于对所述电容器充电的电路,所述充电电路包括用于限制仅在一个方向上流过所述限制电路的电流的电流方向限制电路和用于控制所述限制电路的逆控制电路 电流方向限制电路,以根据DC传输的功率流反转控制来反转用于对电容器充电的电流的方向。