Puffer type gas-insulated circuit breaker
    1.
    发明公开
    Puffer type gas-insulated circuit breaker 失效
    Gasisolierter Schalter mit Selbstbeblasung。

    公开(公告)号:EP0468294A2

    公开(公告)日:1992-01-29

    申请号:EP91111575.6

    申请日:1991-07-11

    申请人: HITACHI, LTD.

    IPC分类号: H01H33/70

    CPC分类号: H01H33/7069

    摘要: A puffer type gas-insulated circuit breaker is adapted to, when its movable electrode (3) separates from a stationary electrode (4), let an insulating gas (10) blow to an occurring arc (A) to extinguish the same. As insulated nozzle (1) is provided to direct the gas (10) toward the arc (A) and forms a gas passage (16) in cooperation with an insulating cover (2) which covers the movable electrode (3). The insulated cover (2) is formed of an insulating material which contains a filler for preventing energy lines of the arc (A) from entering the cover (2). Furthermore, the insulated cover (2) has a specific inductive capacity larger than that of the insulated nozzle (1) so as to make small the electric field strength at the front end of the movable electrode (3).

    摘要翻译: 吹气式气体绝缘断路器,当其可动电极(3)与固定电极(4)分离时,使绝缘气体(10)吹向发生的电弧(A)以将其熄灭。 由于绝缘喷嘴(1)被设置成将气体(10)引向电弧(A)并且与覆盖可动电极(3)的绝缘盖(2)配合形成气体通道(16)。 绝缘盖(2)由绝缘材料形成,其包含用于防止电弧(A)的能量线进入盖(2)的填料。 此外,绝缘盖(2)具有比绝缘喷嘴(1)更大的比感应能力,从而使可动电极(3)前端的电场强度变小。

    Puffer type gas-insulated circuit breaker
    2.
    发明公开
    Puffer type gas-insulated circuit breaker 失效
    PUFFER型气体绝缘电路断路器

    公开(公告)号:EP0468294A3

    公开(公告)日:1992-04-15

    申请号:EP91111575.6

    申请日:1991-07-11

    申请人: HITACHI, LTD.

    IPC分类号: H01H33/70

    CPC分类号: H01H33/7069

    摘要: A puffer type gas-insulated circuit breaker is adapted to, when its movable electrode (3) separates from a stationary electrode (4), let an insulating gas (10) blow to an occurring arc (A) to extinguish the same. As insulated nozzle (1) is provided to direct the gas (10) toward the arc (A) and forms a gas passage (16) in cooperation with an insulating cover (2) which covers the movable electrode (3). The insulated cover (2) is formed of an insulating material which contains a filler for preventing energy lines of the arc (A) from entering the cover (2). Furthermore, the insulated cover (2) has a specific inductive capacity larger than that of the insulated nozzle (1) so as to make small the electric field strength at the front end of the movable electrode (3).

    Automation system for nuclear power plants
    5.
    发明公开
    Automation system for nuclear power plants 失效
    AutomaticallysystemfürKernkraftwerkanlage。

    公开(公告)号:EP0414256A1

    公开(公告)日:1991-02-27

    申请号:EP90116245.3

    申请日:1990-08-24

    申请人: HITACHI, LTD.

    IPC分类号: G21C17/00 G21D3/04

    CPC分类号: G21D3/04 Y02E30/40

    摘要: This invention relates to an automation system for nuclear power plants. This system comprises operation plan making means (4), supervisory control means (2), and control means (31, 32) for controlling controlled objects. The operation plan making means (4) makes a new operation plan to restore a normal operating condition which existed before the plant condition deviated from the normal operation range. The supervisory control means (2) outputs control commands according to an operation plan under abnormal condition when the plant operating condition deviates from the normal operation range. Furthermore, the supervisory control means (2) outputs control commands according a new operation plan prepared by the operation plan making means (4) after an operation according to an operation plan under abnormal condition has been finished. The control means (31, 32) for controlling controlled objects controls the controlled objects according to control commands output from the supervisory control means (2).

    摘要翻译: 本发明涉及一种用于核电站的自动化系统。 该系统包括操作计划制作装置(4),监视控制装置(2)和用于控制受控对象的控制装置(31,32)。 操作计划制定装置(4)制定新的操作计划以恢复在工厂条件偏离正常操作范围之前存在的正常操作条件。 当工厂工作状态偏离正常工作范围时,监控控制装置(2)根据异常状态下的操作计划输出控制命令。 此外,根据在异常状态下的运行方案的运转结束后,由运行计划制定单元(4)准备的新的运行计划,输出控制指令。 用于控制受控对象的控制装置(31,32)根据从监控装置(2)输出的控制命令来控制受控对象。