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    Hybrid MCCB employing electromechanical contacts and power electronic devices
    1.
    发明授权
    Hybrid MCCB employing electromechanical contacts and power electronic devices 有权

    公开(公告)号：US09922781B2

    公开(公告)日：2018-03-20

    申请号：US15409963

    申请日：2017-01-19

    申请人： Eaton Corporation

    发明人： Xin Zhou

    IPC分类号： H01H9/54

    CPC分类号： H01H9/542 ,  H01H9/0271 ,  H01H9/547 ,  H01H33/596 ,  H01H2009/544 ,  H01H2009/546

    摘要： A hybrid switch assembly for a circuit breaker assembly is provided. The circuit breaker assembly includes a housing assembly and an operating mechanism. The housing assembly defines a power electronic switch assembly cavity. A hybrid switch assembly includes a number of conductor assemblies, each conductor assembly including a movable conductor, and a stationary conductor. Further, each movable conductor is structured to move between an open, first position, wherein each movable conductor is spaced from and not in electrical communication with an associated stationary conductor, and a closed, second position, wherein each movable conductor is coupled to and in electrical communication with an associated stationary conductor. A number of the conductor assemblies further include a power electronic switch assembly. Each power electronic switch assembly includes an isolation contact assembly. Each isolation contact assembly is selectively coupled to, and in electronic communication with, the stationary conductor and the movable conductor.

    Switch contact arc suppressor
    3.
    发明授权
    Switch contact arc suppressor 失效
    开关接触电弧抑制器

    公开(公告)号：US4658320A

    公开(公告)日：1987-04-14

    申请号：US709930

    申请日：1985-03-08

    申请人： Chester C. Hongel

    发明人： Chester C. Hongel

    IPC分类号： H01H9/54 ,  H01H9/30

    CPC分类号： H01H9/542 ,  H01H2009/546

    摘要： An arc suppression circuit for a switch carrying a load current includes a MOSFET having a drain connected to a first contact of the switch and a source connected to a second contact of the switch. A biasing capacitor is coupled at one end to the drain and at another end through a damping resistor to the gate, such that when the switch contacts are opened, the interrupted load current passes through the biasing capacitor to charge an inherent gate-to-source MOSFET capacitance for turning on the MOSFET and shunting the load current around the switch. A biasing resistor, connected between the gate and the source of the MOSFET, subsequently discharges the gate-to-source capacitance, turning off the MOSFET and terminating the shunted load current after the contacts of the switch have separated by a distance sufficient to preclude arcing. A zener diode, having its cathode connected to the gate of the MOSFET and its anode connected to the source of the MOSFET, quickly discharges the biasing capacitor when the switch contacts are reclosed.

    摘要翻译： 用于承载负载电流的开关的电弧抑制电路包括具有连接到开关的第一触点的漏极和连接到开关的第二触点的源极的MOSFET。 偏置电容器的一端耦合到漏极，另一端通过阻尼电阻器连接到栅极，使得当开关触点断开时，中断的负载电流通过偏置电容器以对固有的栅极 - 源极 用于接通MOSFET的MOSFET电容，并分流开关周围的负载电流。 连接在MOSFET的栅极和源极之间的偏置电阻器随后放电栅极至源极电容，关断MOSFET并且在开关的触点间隔开足以阻止电弧的距离​​之后终止分流的负载电流 。 一个齐纳二极管，其阴极连接到MOSFET的栅极，其阳极连接到MOSFET的源极，当开关触点被重新闭合时，它会快速放电偏置电容器。

    System and method for operating an on-load tap changer
    7.
    发明授权
    System and method for operating an on-load tap changer 有权
    用于操作有载分接开关的系统和方法

    公开(公告)号：US09570252B2

    公开(公告)日：2017-02-14

    申请号：US14164620

    申请日：2014-01-27

    申请人： General Electric Company

    发明人： Piniwan Thiwanka Bandara Wijekoon ,  Eva-Maria Baerthlein ,  Simon Herbert Schramm ,  Stefan Schroeder ,  Ara Panosyan ,  Rohit Kumar Gupta

    IPC分类号： H01H9/00 ,  H01H9/54 ,  H01F29/04

    CPC分类号： H01H9/542 ,  H01F29/04 ,  H01H9/0005 ,  H01H9/0016 ,  H01H9/0027 ,  H01H2009/546

    摘要： A system for operating an on-load tap changer (OLTC) includes a plurality of legs that include mechanical switches. At least one leg switches from a first to a second tap of the OLTC on receipt of a tap change signal. At least one mechanical switch is activated to establish an electrical connection between one of the first and the second tap and a power terminal of the OLTC. Further, the system includes semiconductor switches that are parallel to the mechanical switches and when activated electrically couple one of the first and the second tap and the power terminal. The system includes a processing unit that selectively activates and deactivates the mechanical and semiconductor switches in such a way that electrical contact is maintained between at least one of the taps and the power terminal during the transition of at least one leg from the first tap to the second tap.

    摘要翻译： 用于操作有载分接开关（OLTC）的系统包括多个包括机械开关的支脚。 在接收到抽头变换信号时，至少一个支路从OLTC的第一个抽头切换到第二个抽头。 至少一个机械开关被激活以在第一和第二抽头中的一个和OLTC的电源端之间建立电连接。 此外，该系统包括与机械开关平行的半导体开关，并且当被激活时电耦合第一和第二抽头之一以及电源端子。 该系统包括处理单元，其选择性地激活和停用机械和半导体开关，使得在至少一个支路从第一分接头到第一分接头的转换期间电触头保持在至少一个抽头和电源端子之间 第二击。

    Disconnector switch for galvanic direct current interruption
    8.
    发明授权
    Disconnector switch for galvanic direct current interruption 有权
    隔离开关用于电流直流中断

    公开(公告)号：US08742828B2

    公开(公告)日：2014-06-03

    申请号：US13240505

    申请日：2011-09-22

    申请人： Michael Naumann ,  Thomas Zitzelsperger ,  Frank Gerdinand

    发明人： Michael Naumann ,  Thomas Zitzelsperger ,  Frank Gerdinand

    IPC分类号： H03K17/687

    CPC分类号： H01H9/542 ,  H01H2009/544 ,  H01H2009/546

    摘要： A disconnecting apparatus for direct current interruption between a direct current source and an electrical device, in particular between a photovoltaic generator and an inverter, has a current-conducting mechanical switching contact and semiconductor electronics connected in parallel with the switching contact. The semiconductor electronics are non-conducting when the switching contact is closed, wherein a control input of the semiconductor electronics is wired with the switching contact in such a way that, when the switching contact opens, an arc voltage generated as a result of an arc via the switching contact switches the semiconductor electronics to become conducting.

    摘要翻译： 用于在直流电源和电气装置之间，特别是光伏发电机和逆变器之间的直流中断的断开装置具有与开关触点并联连接的导电机械开关触点和半导体电子装置。 当开关触点闭合时，半导体电子器件不导通，其中半导体电子器件的控制输入端与开关触点相连，使得当开关触点断开时，由于电弧产生的电弧电压 通过开关触点将半导体电子器件切换成导通。

    Two terminal active arc suppressor
    9.
    发明授权
    Two terminal active arc suppressor 失效
    两端有源电弧抑制器

    公开(公告)号：US5703743A

    公开(公告)日：1997-12-30

    申请号：US641112

    申请日：1996-04-29

    申请人： Tony J. Lee

    发明人： Tony J. Lee

    IPC分类号： H01H9/54 ,  H02H3/00

    CPC分类号： H01H9/542 ,  H01H2009/543 ,  H01H2009/544 ,  H01H2009/546

    摘要： The arc suppression circuit includes an insulated gate bipolar junction transistor (IGBT) connected across the electrical switch contacts to be protected. When the contacts open, the combination of added Miller capacitance and the gate-to-emitter capacitance of the IGBT results in the IGBT turning on. The IGBT is quickly turned off thereafter by a second transistor, which turns on as the voltage across the suppression circuit rises following turn-on of the IGBT. The turning on of the second transistor results in the first power transistor quickly and abruptly turning off so that relatively little of the load energy is dissipated in the power transistor.

    摘要翻译： 电弧抑制电路包括跨越要保护的电开关触点的绝缘栅极双极结型晶体管（IGBT）。 当触点断开时，增加的米勒电容和IGBT的栅极 - 发射极电容的组合导致IGBT导通。 IGBT之后由第二晶体管快速关断，随着IGBT导通时，抑制电路两端的电压上升，导通。 第二晶体管的导通导致第一功率晶体管快速并突然关断，从而在功率晶体管中消耗相对较小的负载能量。

    Circuit for protecting contacts against damage from arcing
    10.
    发明授权
    Circuit for protecting contacts against damage from arcing 失效
    用于保护与ARCING有关的损害联系人的电路

    公开(公告)号：US3868549A

    公开(公告)日：1975-02-25

    申请号：US35469473

    申请日：1973-04-26

    申请人： FRANKLIN ELECTRIC CO INC

    发明人： SCHAEFER EDWARD J ,  STREATER AUGUST L

    IPC分类号： H02P25/04 ,  H01H9/54 ,  H02P27/02 ,  H02H7/22

    CPC分类号： H01H9/542 ,  H01H2009/546

    摘要： This disclosure deals with a circuit for substantially reducing or eliminating switch contact damage due to arcing when opening or closing the switch contacts under heavy AC current load conditions. This is accomplished by providing a normally open shunt path across the contacts and momentarily closing the path at the instant of arcing. The shunt path includes contactless switch means which is normally open. Opening of the switch contacts effects turning on of the switch means and transfer of the load current thereto, thus quenching the arc. At the next subsequent zero crossing of the AC wave, the switch means is again opened. Similar operation occurs when the switch contacts close and an arc starts to develop due to contact bounce.

    摘要翻译： 本公开涉及一种电路，用于在大的AC电流负载条件下打开或关闭开关触点时，大大减少或消除由于电弧引起的开关触点损坏。 这通过提供穿过触头的常开分路路径并在电弧瞬间瞬间闭合路径来实现。 分流路径包括常开的非接触式开关装置。 开关触点的打开会影响开关装置的接通和负载电流的传递，从而使电弧骤冷。 在下一次AC交流的零交叉时，开关装置再次打开。 当触点闭合并且由于接触反弹而开始发生电弧时，发生类似的操作。