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    • 5. 发明授权
    • Modified magne-blast circuit breaker and method of modification
    • 改进型电磁断路器及其改进方法
    • US5142110A
    • 1992-08-25
    • US644790
    • 1991-01-23
    • Edward J. KuehneWilliam A. McCloyMark S. McCloy
    • Edward J. KuehneWilliam A. McCloyMark S. McCloy
    • H01H9/14H01H33/02H01H33/666H02B11/22
    • H01H33/666H02B11/10H02B11/22H01H33/022H01H9/14
    • A modified magne-blast vertical racking circuit breaker modified to accept vacuum circuit breakers. The main frame of the magne-blast unit is modified to accept the vacuum breaker operating mechanism and vacuum interrupters, which are connected to the load and line stabs of the magne-blast unit. A mechanism operated cell operator is mounted above the vacuum breaker operating mechanism, and the mechanism is modified to accept an interlock switch which is positioned to engage the switch gear associated with the magne-blast breaker. The unit also includes a surge suppressor mounted on the main frame. The modification method includes the removal of the arc chutes, blowout coils, blowout cores, contact arm assemblies, booster cylinders and main operating crank, and replacing them with the vacuum interrupters; the magne-blast operating mechanism is also replaced by the vacuum interrupter operating mechanism. The surge suppressor is mounted in space previously occupied by the arc chutes such that the modified unit can be received in the magne-blast metal-clad switchgear.
    • 修改后的磁鼓式立式破碎断路器经过改装以接受真空断路器。 磁鼓机的主框架被修改为接受真空断路器操作机构和真空断路器,其连接到磁鼓机组的负载和线路。 在真空断路器操作机构上方安装有机构操作的电池操作器,并且该机构被修改以接受互锁开关,其被定位成接合与磁鼓式断路器相关联的开关装置。 该单元还包括安装在主框架上的浪涌抑制器。 该修改方法包括去除电弧槽,井喷线圈,井喷芯,接触臂组件,增压缸和主操作曲柄,并用真空灭弧室代替它们; 磁鼓式操作机构也被真空灭弧室操作机构所取代。 浪涌抑制器安装在先前由电弧槽所占据的空间中,使得改性单元可以被接收在磁鼓式金属包层开关装置中。