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    • 14. 发明专利
    • Vacuum switch
    • 真空开关
    • JP2013222528A
    • 2013-10-28
    • JP2012091760
    • 2012-04-13
    • Hitachi Ltd株式会社日立製作所
    • SATO KAZUHIROMORITA AYUMIKOBAYASHI MASAHITO
    • H01H33/664
    • PROBLEM TO BE SOLVED: To provide a vacuum switch with which a wipe mechanism and an actuator can be miniaturized and made light in weight, and not only the generation of metal powder is suppressed even for highly frequent opening/closing operations but also stable contact resistance is maintained even when a large current is energized and the temperature of a contact part is not elevated.SOLUTION: A vacuum switch of the present invention includes: a cylindrical insulation material; a fixed side end plate joined to one end side of the cylindrical insulating material; a fixed side conductor airtightly passing through the fixed side end plate; a movable side end plate and bellows joined to the other end side of the cylindrical insulating material; a movable side conductor airtightly passing through the bellows, connected with the actuator through an insulation rod and a wipe mechanism, and drivable in an axial direction; a finger type contactor which is brought close to and separated from the movable side conductor; and a stopper for the movable side conductor installed on the axis of the fixed side conductor, for stopping the drive in the axial direction of the movable side conductor.
    • 要解决的问题:提供一种能够使擦拭机构和致动器小型化并且重量轻的真空开关,即使对于高频率的打开/关闭操作也不仅抑制金属粉末的产生,而且还具有稳定的接触电阻 即使在大电流通电并且接触部件的温度不升高时也保持。本发明的真空开关包括:圆柱形绝缘材料; 与圆柱形绝缘材料的一端侧连接的固定侧端板; 气密地穿过固定侧端板的固定侧导体; 连接到圆筒形绝缘材料的另一端侧的可动侧端板和波纹管; 气密地穿过波纹管的可动侧导体,通过绝缘杆和擦拭机构与致动器连接,并可沿轴向驱动; 指状接触器靠近并与可动侧导体分离; 以及安装在固定侧导体的轴线上的用于可动侧导体的止动件,用于在可动侧导体的轴向上停止驱动。
    • 16. 发明专利
    • Switch and operation method of switch
    • 开关的开关和操作方法
    • JP2013127886A
    • 2013-06-27
    • JP2011276606
    • 2011-12-19
    • Hitachi Ltd株式会社日立製作所
    • SUGAI DAISUKEMORITA AYUMISATO TAKASHITSUCHIYA KENJI
    • H01H33/59H01H33/666
    • PROBLEM TO BE SOLVED: To provide an operation method of a switch capable of performing opening operation more reliably.SOLUTION: In an operation method of a switch according to the present invention, a relay 55 is excited by an input of a feed command 53 in closed circuit, and after the relay 55 is excited, a feed circuit is excited so that a movable electrode is operated to a close position. When the movable electrode is at the close position, the relay 55 is being excited always. In open circuit, the feed command 53 is released so that excitation of the relay 55 is released. After excitation of the relay 55 is released, a trip circuit 52 is excited so that the movable electrode is operated to the open position.
    • 要解决的问题:提供能够更可靠地进行打开操作的开关的操作方法。 解决方案:在根据本发明的开关的操作方法中,继电器55由闭合的馈送指令53的输入激励,并且在继电器55被激励之后,馈电电路被激励,使得 可动电极操作到关闭位置。 当可动电极处于关闭位置时,继电器55总是被激励。 在开路中,进给指令53被释放,从而释放继电器55的激励。 在释放继电器55的激励之后,跳闸电路52被激励,使得可动电极操作到打开位置。 版权所有(C)2013,JPO&INPIT
    • 17. 发明专利
    • Circuit breaker, circuit breaker unit, switch gear, and windmill equipped with switch gear
    • 断路器,断路器单元,开关齿轮和带开关齿轮的WINDMILL
    • JP2012043664A
    • 2012-03-01
    • JP2010184555
    • 2010-08-20
    • Hitachi Ltd株式会社日立製作所
    • UCHIUMI TOMOAKIHOSONO TAKAFUMISATO TAKASHITSUCHIYA KENJIMORITA AYUMI
    • H01H33/42H01H33/65H01H33/662H02B13/02
    • PROBLEM TO BE SOLVED: To provide a circuit breaker continuously usable.SOLUTION: A circuit breaker comprises a ground disconnecting part movable conductor 14 having spring contact points 15A, 15B, a stationary electrode 11 contacting the spring contact points 15A, 15B, and an insulation rod 25 connected to an operation unit and transmitting a driving force of the operation unit to the ground disconnecting part movable conductor 14, and the ground disconnecting part movable conductor 14 moves linearly around the insulation rod 25 together with rotation of the insulation rod 25. A metallic screw part 17 is connected to the insulation rod 25, the ground disconnecting part movable conductor 14 has a metallic screw part 16 fitted with the metallic screw part 17, and the screw part 17 connected to the insulating rod 25 is positioned inside the ground disconnecting part movable conductor 14.
    • 要解决的问题:提供一种连续可用的断路器。 解决方案:断路器包括具有弹簧接触点15A,15B的接地断​​路部分可移动导体14,与弹簧接触点15A,15B接触的固定电极11和连接到操作单元的绝缘杆25, 操作单元对接地断路部分可动导体14的驱动力,以及接地断路部分可动导体14随着绝缘杆25的旋转而围绕绝缘棒25线性移动。金属螺纹部17连接到绝缘棒 如图25所示,接地断路部可动导体14具有与金属螺钉部17嵌合的金属螺纹部16,与绝缘杆25连接的螺纹部17位于接地断路部可动导体14的内部。 (C)2012,JPO&INPIT
    • 18. 发明专利
    • High voltage switchgear
    • 高电压开关
    • JP2012015009A
    • 2012-01-19
    • JP2010151844
    • 2010-07-02
    • Hitachi Ltd株式会社日立製作所
    • ROKUNOHE TOSHIAKIKATO TATSUROTSUCHIYA KENJIMORITA AYUMI
    • H01H31/28H01H31/02H01H33/64
    • PROBLEM TO BE SOLVED: To provide a high voltage switchgear miniaturized by reducing an electric field in a blade end and a stator end and improving a voltage resistance property without using a larger shield.SOLUTION: A high voltage switchgear has a switchgear including: a movable side conductor 2 connected to one of bus conductors: a movable element 4 provided for each phase and made of a conductive member with one end side pivotally supported by the movable side conductor 2 in a rotatable manner; and insulating gas. The switchgear also has shields 7a and 7b in which a surface of each of shield electrodes 10c and 10d electrically and mechanically secured to the movable side conductor 2 is insulation-covered or molded with an insulator, and the shields 7a and 7b are each arranged to face a side surface of the movable element 4 at an opening position of the movable element 4.
    • 要解决的问题:通过减小叶片端部和定子端部的电场来提供小型化的高压开关装置,并且不使用较大的屏蔽物来提高耐电压性能。 解决方案:高压开关设备具有开关装置,该开关装置包括:连接到总线导体中的一个的可移动侧导体2:为每相设置的可动元件4,由导电构件制成,其一端侧由可动侧枢转地支撑 导体2; 和绝缘气体。 开关装置还具有屏蔽部7a,7b,其中屏蔽电极10c,10d的表面电气地和机械地固定在可动侧导体2上的绝缘体被绝缘覆盖或模制,并且屏蔽7a和7b分别布置成 在可移动元件4的打开位置处面对可移动元件4的侧表面。版权所有(C)2012,JPO&INPIT
    • 20. 发明专利
    • Switchgear
    • 开关设备
    • JP2010098776A
    • 2010-04-30
    • JP2008264746
    • 2008-10-14
    • Hitachi Ltd株式会社日立製作所
    • MORITA AYUMIKOBAYASHI MASAHITOSOTOZAKI HIRONORIYAMAZAKI MISHUKU
    • H02B1/30H01H31/06H01H31/10H01H33/48H01H33/52
    • H01H9/22H01H31/003H01H33/6661H01H2033/6668H01H2300/056
    • PROBLEM TO BE SOLVED: To provide a switchgear equipped with interlocks improving safety and reliability. SOLUTION: On a front face panel 2, a single line connection diagram 4, an indicator 5 showing state of ON, OFF and disconnection, an indicator 6 showing a state of an grounding switch, a selection mechanism 7 for selecting manipulation of circuit break, disconnection and grounding, push button switches 8, 9 for closing and opening a circuit breaker, a manipulation handle insertion hole 20 for disconnecting and a manipulation handle insertion hole 30 for grounding are provided. Depending on positions of a manipulation pin 12 of the selection mechanism 7, a machine and apparatus to be manipulated is selected. Further, other than the selection of the manipulation, the selection mechanism 7 mechanically engages with shutters respectively provided at the manipulation handle insertion hole 20 for disconnecting and the manipulation handle insertion hole 30 for grounding, and achieves mechanical interlocks in series of manipulations between circuit break, disconnection and grounding. According to this switchgear 1, an erroneous operation can be prevented, various interlocks required for the switchgear is mechanically achieved, and safety and reliability are improved. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种配备互锁的开关柜,提高安全性和可靠性。 解决方案:在前面板2上,单线连接图4,表示ON,OFF和断开状态的指示器5,示出接地开关状态的指示器6,用于选择操作的选择机构7 断路,断路和接地,用于闭合和断开断路器的按钮开关8,9,用于断开的操作手柄插入孔20和用于接地的操纵手柄插入孔30。 根据选择机构7的操作销12的位置,选择要操纵的机器和装置。 此外,除了选择操作之外,选择机构7机械地与分别设置在用于断开的操作手柄插入孔20和用于接地的操作手柄插入孔30中的快门机械地接合,并且实现在断路之间的一系列操作中的机械互锁 ,断开和接地。 根据该开关装置1,可以防止错误的动作,机械地实现开关装置所需的各种互锁,提高安全性和可靠性。 版权所有(C)2010,JPO&INPIT