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

    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。

    Method of controlling transient recovery voltage and gas insulation
switch gear using the same
    4.
    发明授权
    Method of controlling transient recovery voltage and gas insulation switch gear using the same 失效
    控制使用相同的瞬态恢复电压和气体绝缘开关装置的方法

    公开(公告)号:US5821496A

    公开(公告)日:1998-10-13

    申请号:US529398

    申请日:1995-09-18

    CPC分类号: H01H33/16 H01H33/006

    摘要: The steep initial rate of rise of the transient recovery voltage across the poles of a circuit breaker just after a fault current break is decreased. The breaking performance in the case of a short-circuit fault to ground taking place in an electrical power transmission system at relatively as near a place as several kilometers apart from the circuit breaker, that is a short-line-fault is improved by a saturable reactor having a capacitor connected in parallel therewith to the circuit breaker in series. As a result, as the saturable reactor changes from the magnetically saturated state to the unsaturated state just before the zero point of the fault current, the self-inductance of the saturable reactor gradually increases and an LC resonance is produced between the self-inductance of the saturable reactor and the capacitor connected to the saturable reactor in parallel. Therefore, the peak value and the time period of the current flowing from the saturable reactor can be controlled to control the initial rate of rise of the transient recovery voltage.

    摘要翻译: 刚刚发生故障电流断路之后,断路器两极的瞬态恢复电压的急剧上升速率下降。 在电力传输系统中发生短路故障的情况下的断路性能相对靠近离断路器几公里的地方,即短路故障,由可饱和的 具有与其并联连接到串联的断路器的电容器反应器中。 结果,随着饱和电抗器从故障电流零点之前的饱和状态转变为不饱和状态,可饱和电抗器的自感逐渐增加,并且在谐振电感的自感 饱和电抗器和并联连接到所述饱和电抗器的电容器。 因此,可以控制从可饱和电抗器流出的电流的峰值和时间周期,以控制瞬时恢复电压的初始上升速率。

    Electromagnetic puffer type gas circuit breaker
    5.
    发明授权
    Electromagnetic puffer type gas circuit breaker 失效
    电磁吹风式气体断路器

    公开(公告)号:US4211903A

    公开(公告)日:1980-07-08

    申请号:US805173

    申请日:1977-06-09

    CPC分类号: H01H33/882

    摘要: An electromagnetic puffer type gas circuit breaker comprises two opposing puffer type gas circuit breaking units mounted on midway support means, actuating means for driving the circuit breaking units, an electromagnetic actuating unit drivingly coupled to the actuating means, and current transfer mechanism for transferring and applying the interrupting current to the electromagnetic actuating unit during a circuit breaking operation. The current transfer mechanism is located, in operative connection to the actuating means, at a point above the midway support means and in a spaced relation to the electromagnetic actuating unit. The contact surface area of the current-conducting path portion leading to the transfer mechanism is a fraction of that of another current-conducting path portion for the passage of most of the rated current. These features provide ease of inspection and replacement of the current transfer mechanism and reduces the operating force requirement of the breaker.

    摘要翻译: 一种电磁吹风式气体断路器包括安装在中途支撑装置上的两个相对的河豚式气体断路装置,用于驱动断路单元的驱动装置,驱动地连接到致动装置的电磁致动单元,以及用于转移和施加的电流传递机构 在断路操作期间到电磁致动单元的中断电流。 当前的传送机构位于中途支撑装置上方并以与电磁驱动单元间隔开的位置处于与致动装置有效连接的位置。 通向传送机构的导电通路部分的接触表面积是另一导流路径部分的大部分额定电流通过的一部分。 这些特征提供了便于检查和更换电流传递机构,并降低了断路器的操作力要求。

    Grounded support tank type gas circuit breaker
    6.
    发明授权
    Grounded support tank type gas circuit breaker 失效
    接地支撑式气体断路器

    公开(公告)号:US4239948A

    公开(公告)日:1980-12-16

    申请号:US707350

    申请日:1976-07-21

    IPC分类号: H01H33/16 H01H33/56 H01H33/54

    CPC分类号: H01H33/56 H01H33/16

    摘要: A grounded support tank type gas circuit breaker comprising a cylindrical tank maintained at ground potential and filled with an arc-extinguishing gas, and a breaking unit disposed within the tank with its central axis extending along the axis of the tank. In the circuit breaker, a capacitor unit is disposed within the tank in axially aligned relation with the breaking unit with its axis extending along an extension of the central axis of the breaking unit, so that the capacitor unit can be easily incorporated in the circuit breaker by merely increasing the axial length of the tank.

    摘要翻译: 一种接地的支撑罐式气体断路器,包括保持在地电位并且填充有灭弧气体的圆筒形容器,以及设置在罐内的其中心轴线沿着罐的轴线延伸的断路单元。 在断路器中,电容器单元设置在槽内与断路单元轴向对齐的关系中,其轴线沿着断路单元的中心轴线的延伸线延伸,使得电容器单元可以容易地并入断路器 通过仅增加罐的轴向长度。

    Magnetic puffer type gas circuit breaker
    7.
    发明授权
    Magnetic puffer type gas circuit breaker 失效
    磁性河豚式气体断路器

    公开(公告)号:US4105879A

    公开(公告)日:1978-08-08

    申请号:US775196

    申请日:1977-03-07

    IPC分类号: H01H33/70 H01H33/88

    CPC分类号: H01H33/882

    摘要: In a magnetic puffer type gas circuit breaker including an electromagnetic coil through which a current to be interrupted flows during the breaking operation, and an electromagnetic repulsive member which produces an electromagnetic repulsive force in cooperation with the electromagnetic coil and drives movable parts of a breaking portion of the apparatus, the electromagnetic repulsive member is so arranged that the electromagnetic neutral position of the electromagnetic repulsive member within the electromagnetic coil at the time when the breaking portion has been closed deviates on the closing side with respect to the electromagnetic center of the electromagnetic coil. Further, the characteristics of the electromagnetic repulsive forces between the electromagnetic coil and the electromagnetic repulsive member are so set that their absolute values become smaller on the closing side than on the breaking side with respect to the point at which the electromagnetic center of the electromagnetic coil and the electromagnetic neutral position of the electromagnetic repulsive member are coincident.

    摘要翻译: 在包括电磁线圈的磁性河豚型气体断路器中,在电磁线圈中断流动的电流在断开动作期间流动,以及电磁排斥构件,其产生与电磁线圈协作的电磁排斥力并驱动断开部的可动部 该电磁排斥构件被布置成使得在断开部分已经闭合时电磁线圈内的电磁排斥构件的电磁中立位置相对于电磁线圈的电磁中心在关闭侧偏离 。 此外,电磁线圈和电磁排斥构件之间的电磁排斥力的特性被设定为使得它们的绝对值相对于电磁线圈的电磁中心的点在闭合侧比在断开侧变小 并且电磁排斥构件的电磁中立位置一致。