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    • 11. 发明授权
    • Electromagnetic puffer type gas circuit breaker
    • 电磁吹风式气体断路器
    • US4211903A
    • 1980-07-08
    • US805173
    • 1977-06-09
    • Masanori TsukushiKatsuichi KashimuraOsamu KoyanagiYoshio YoshiokaKunio Hirasawa
    • Masanori TsukushiKatsuichi KashimuraOsamu KoyanagiYoshio YoshiokaKunio Hirasawa
    • H01H33/70H01H33/88H01H33/915
    • H01H33/882
    • 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.
    • 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。
    • 12. 发明授权
    • Puffer type circuit breaker
    • 河豚式断路器
    • US4939322A
    • 1990-07-03
    • US326652
    • 1989-03-21
    • Katsuichi KashimuraMinori SatoOsamu KoyanagiYukio Kurosawa
    • Katsuichi KashimuraMinori SatoOsamu KoyanagiYukio Kurosawa
    • H01H33/70H01H33/91H01H33/915
    • H01H33/91H01H33/7023
    • 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.
    • 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。
    • 16. 发明授权
    • Method of controlling transient recovery voltage and gas insulation
switch gear using the same
    • 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
    • US5821496A
    • 1998-10-13
    • US529398
    • 1995-09-18
    • Eisaku MizufuneTakashi SatoKatsuichi KashimuraOsamu KoyanagiYoshihito AsaiYukio Korosawa
    • Eisaku MizufuneTakashi SatoKatsuichi KashimuraOsamu KoyanagiYoshihito AsaiYukio Korosawa
    • H01H33/59H01H33/00H01H33/16H02H3/00
    • H01H33/16H01H33/006
    • 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.
    • 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。
    • 20. 发明授权
    • Puffer-type gas-blast circuit breaker
    • 吹气式气体断路器
    • US4182942A
    • 1980-01-08
    • US792004
    • 1977-04-28
    • Osamu KoyanagiKen-ichi NatsuiYoshio Yoshioka
    • Osamu KoyanagiKen-ichi NatsuiYoshio Yoshioka
    • H01H33/88H01H33/91H01H33/915
    • H01H33/91
    • A puffer type gas-blast circuit breaker includes at least one interrupting unit mounted in a vessel filled with an arc-extinguishing gas of a unitary pressure. The interrupting unit comprises: a fixed contact; a movable contact movable toward and away from the fixed contact to be engaged with and to be disengaged from the fixed contact respectively, the movable contact having therein an axial hollow portion, wherein an arc is established between the contacts upon disengagement of the movable contact from the fixed contact; a compression chamber filled with an arc extinguishing gas; a suction chamber, wherein an arc extinguishing gas within the compression chamber is compressed and the volume of the suction chamber is enlarged upon movement of the movable contact away from the fixed contact, and wherein a pressure difference between the compression chamber and the suction chamber causes the arc extinguishing gas to be directed from the compression chamber through the axial hollow portion into the suction chamber thereby to be blown against an arc produced between the fixed contact and the movable contact; and means provided in the suction chamber for cooling an arc extinguishing gas introduced into the suction chamber to suppress a pressure rise within the suction chamber for maintaining a sufficiently large pressure difference between the compression chamber and the suction chamber, thereby shortening an arcing time and improving a breaking performance.
    • 吹气式气体爆炸断路器包括至少一个中断单元,其安装在填充有单一压力的灭弧气体的容器中。 所述中断单元包括:固定触点; 可移动接触件可以朝向和远离固定触头移动以分别与固定触头接合并与固定触头分离,所述可动触头具有轴向中空部分,其中在触点之间建立电弧,使可动触头脱离 固定接触; 填充有灭弧气体的压缩室; 吸入室,其中压缩室内的灭弧气体被压缩,并且当可动触头远离固定触头移动时吸入室的体积增大,并且其中压缩室和吸入室之间的压力差导致 将通过轴向中空部分从压缩室引导到吸入室中的灭弧气体被吹送到在固定触头和可动触点之间产生的电弧; 以及设置在所述吸入室中的装置,用于冷却引入所述吸入室的灭弧气体,以抑制所述吸入室内的压力上升,以保持所述压缩室和所述吸入室之间的压力差足够大,由此缩短电弧时间并提高 打破性能。