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    Gas blast circuit interrupter with movable flow director engagable with a stationary resistance inserting means during opening and closing
    4.
    发明授权
    Gas blast circuit interrupter with movable flow director engagable with a stationary resistance inserting means during opening and closing 失效
    具有可移动流动导体的气体电路中断器，在开启和关闭期间具有稳定的电阻插入装置

    公开(公告)号：US3590190A

    公开(公告)日：1971-06-29

    申请号：US3590190D

    申请日：1968-11-05

    申请人： WESTINGHOUSE ELECTRIC CORP

    发明人： COLCLASER ROBERT G JR ,  CROMER CHARLES F

    IPC分类号： H01H33/16 ,  H01H33/70 ,  H01H33/825 ,  H01H33/74

    CPC分类号： H01H33/16 ,  H01H33/7069

    摘要： In order to reduce the rate of rise of the recovery voltage of a kilometric or short-line fault, resistors are connected in the circuit to be interrupted during an opening operation. A resistor is provided on each one of two terminal bushings extending through the ends of the housing for each interrupting unit of a circuit breaker. The resistors also function to divide the voltage equally across the two series breaks in the interrupter and they function as damping resistors to prevent restrikes during opening and excessive over voltages during closing. During opening, the resistors are inserted in the circuit and then are disconnected. During closing, the resistors are inserted in the circuit and then shorted out of the circuit. The resistor contacts are mounted on a stationary flow director and are engaged by the outer surface of a conductive movable flow director which is concentric with the movable hollow contact.