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    • 2. 发明授权
    • Puffer type liquefied-gas self-injection circuit breaker
    • 河豚式液化气自注射断路器
    • US4736080A
    • 1988-04-05
    • US21761
    • 1987-03-04
    • Guy St-JeanMichel LandryRobert JeanjeanDaniel Demissy
    • Guy St-JeanMichel LandryRobert JeanjeanDaniel Demissy
    • H01H33/53H01H33/57H01H33/91H01H33/915H01H33/88
    • H01H33/53H01H33/91H01H2033/912H01H33/57
    • A puffer type liquefied-gas self-injection circuit breaker, used for the interruption at low temperature of a high current carried by a high-voltage power line. The circuit breaker comprises a first fixed contact and a compression chamber. The compression chamber has a bottom part which is fixed and an upper part of which is movable in the axial direction with respect to the bottom part. The upper part of the compression chamber comprises a second contact and an envelope concentrically disposed thereabout. An insulating nozzle is formed in a top portion of the envelope. The internal wall of the envelope is so shaped as to exactly match the external profile of the bottom part of the compression chamber. The breaker is also equipped with a liquefied-gas self-injection system which injects the liquefied-gas from their storage tank via a feed line and valve directly onto the electric arc formed at the moment of current interruption. This system comprises an injection chamber located in the wall of the moving part of the compression chamber. The injection chamber is terminated at one end by a narrow injection channel acting as a nozzle directed towards the electric arc while the other end rests on a compression piston formed by a pre-injection chamber. The latter forms an integral part of the fixed bottom part of the compression chamber and is equipped at its top end with a check valve permitting its use as a compression piston when the valve is closed and permitting the transfer of liqufied-gas to the injection chamber when the valve is in the open position. A storage tank placed at the bottom of the compression chamber provides for the recuperation by gravity of all the liquefied-gas in the apparatus.
    • 一种用于高压电力线承载的高电流低温中断的河豚型液化气自注射断路器。 断路器包括第一固定触点和压缩室。 压缩室具有固定的底部,其上部相对于底部沿轴向移动。 压缩室的上部包括第二接触件和同心地设置在其周围的外壳。 绝缘喷嘴形成在外壳的顶部。 外壳的内壁的形状是与压缩室的底部的外部轮廓精确匹配的。 断路器还配备有液化气自注射系统,其将来自储罐的液化气体通过进料管线和阀直接喷射到在电流中断时形成的电弧上。 该系统包括位于压缩室的移动部分的壁中的注射室。 注射室在一端被一个狭窄的注入通道端接,该狭窄的注入通道用作朝向电弧的喷嘴,而另一端则靠在由预注射室形成的压缩活塞上。 后者形成压缩室的固定底部的整体部分,并且在其顶端配备有止回阀,当止回阀关闭时允许其用作压缩活塞并允许液化气体转移到注射室 当阀处于打开位置时。 放置在压缩室底部的储罐通过设备中所有液化气体的重力来恢复。
    • 6. 发明授权
    • High rupture capacity circuit-breaker
    • 高断路容量断路器
    • US5276285A
    • 1994-01-04
    • US883364
    • 1992-05-15
    • Van Doan PhamRobert JeanjeanJoseph MartinRobert Isbister
    • Van Doan PhamRobert JeanjeanJoseph MartinRobert Isbister
    • H01H33/16
    • H01H33/161
    • A high-voltage circuit-breaker has an interrupting chamber comprising a gas-tight cylindrical casing filled with a gas having good insulative properties such as sulfur hexafluoride. The casing contains a fixed permanent contact, a fixed arc contact and a mobile assembly comprising permanent contacts and arc contacts and associated with a gas blast assembly. The chamber also contains a carbon-based resistor having a resistance of approximately 500 ohms connected in parallel with the circuit-breaker contacts when the arc contacts are opened by an auxiliary switch. This resistor is connected in series with an arrangement of varistors, the resulting combination being disposed inside the casing and connected in series with the auxiliary switch. Opening of the auxiliary switch is effected by opening of the circuit-breaker. The volume of the resistor is greater than that of the arrangement of varistors by a factor of at least five.
    • 高压断路器具有中断室,该中断室包括填充有诸如六氟化硫之类的绝缘性好的气体的气密圆柱形壳体。 壳体包含固定的永久接触件,固定电弧接触件和包括永久接触件和电弧接触件并与气体鼓风组件相关联的移动组件。 当电弧触点由辅助开关打开时,该室还包含具有大约500欧姆电阻的碳基电阻器,与电路断路器触点并联连接。 该电阻器与压敏电阻器的串联连接,所得到的组合件设置在壳体内并与辅助开关串联连接。 辅助开关的打开通过打开断路器来实现。 电阻器的体积大于压敏电阻器的体积至少五倍。