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    Method and apparatus for controlling solid state circuit breaker, and solid state circuit breaker
    2.
    发明授权
    Method and apparatus for controlling solid state circuit breaker, and solid state circuit breaker 有权

    公开(公告)号：US11923674B2

    公开(公告)日：2024-03-05

    申请号：US17598394

    申请日：2019-03-29

    Applicant: Siemens Aktiengesellschaft

    Inventor： Feng Du ,  Wei Gang Chen

    IPC: H02H3/087 ,  H02H7/00

    CPC classification number: H02H3/087 ,  H02H7/008

    Abstract: A method for controlling a solid state circuit breaker includes detecting a direction of a current flowing through the solid state circuit breaker, obtaining a breaking current value of the solid state circuit breaker according to the detected direction of the current, obtaining a value of a maximum threshold current to flow through the solid state circuit breaker, obtaining a predicted current value within a next sampling period of a present sampling period of the solid state circuit breaker, comparing the predicted current value with the breaking current value, and upon the predicted current value being greater than the breaking current value, delaying the solid state circuit breaker, and upon the predicted current value being greater than the maximum threshold current value, controlling the solid state circuit breaker to disconnect a circuit in which the solid state circuit breaker resides.

    ELECTROSTATIC PROTECTION CIRCUIT
    4.
    发明申请
    ELECTROSTATIC PROTECTION CIRCUIT 审中-公开
    静电保护电路

    公开(公告)号：US20160261105A1

    公开(公告)日：2016-09-08

    申请号：US15019645

    申请日：2016-02-09

    Applicant: KABUSHIKI KAISHA TOSHIBA

    Inventor： Kazuhiro KATO

    IPC: H02H3/20

    CPC classification number: H02H3/20 ,  H02H7/008 ,  H02H9/041 ,  H02H9/042

    Abstract: An electrostatic protection circuit includes a trigger circuit that is connected between a first power line and a second power line. The trigger circuit is configured to output a trigger signal in response to a voltage fluctuation between the first and second power lines. A shunt element has a main current path between the first power line and the second power line and is controllable to be on and off using the trigger signal. A control circuit is configured to supply a control signal to turn off the shunt element when a current value of the main current path of the shunt element exceeds a predetermined threshold value.

    Abstract translation: 静电保护电路包括连接在第一电力线和第二电力线之间的触发电路。 触发电路被配置为响应于第一和第二电力线之间的电压波动而输出触发信号。 分路元件具有在第一电力线和第二电力线之间的主电流路径，并且可以使用触发信号来控制开和关。 控制电路被配置为当分流元件的主电流路径的当前值超过预定阈值时，提供控制信号以关闭分流元件。

    FAULT CURRENT LIMITER
    5.
    发明申请
    FAULT CURRENT LIMITER 有权
    故障电流限制

    公开(公告)号：US20150333506A1

    公开(公告)日：2015-11-19

    申请号：US14708076

    申请日：2015-05-08

    Applicant: LSIS CO., LTD.

    Inventor： Seung Hyun BANG ,  Won Joon CHOE ,  MIN Jee KIM ,  Kil Young AHN

    IPC: H02H9/02

    CPC classification number: H02H9/023 ,  H02H7/001 ,  H02H7/008 ,  H02H9/026 ,  Y02E40/69

    Abstract: This specification relates to fault current limiter (FCL). More particularly, to solve problems of protecting and designing current limiting impedance in a protective coordination system, as limitations of the related art, the fault current limiter may measure heat capacity of a current limiting impedance unit by detecting fault current flowing to the current limiting impedance unit and limiting the fault current flowing to the current limiting impedance unit according to the measured heat capacity, which may result in preventing the current limiting impedance unit from being damaged due to the fault current, preventing an extended accident due to the damaged current limiting impedance unit and enabling a stabilized system and line protection.

    Abstract translation: 本规范涉及故障限流器（FCL）。 更具体地，为了解决在保护性协调系统中保护和设计电流限制阻抗的问题，作为现有技术的限制，故障限流器可以通过检测流到限流阻抗的故障电流来测量限流阻抗单元的热容量 单元，并根据测量的热容量限制流向限流阻抗单元的故障电流，这可能导致阻止电流限制阻抗单元由于故障电流而损坏，从而防止由于损坏的电流限制阻抗引起的延长事故 并实现了稳定的系统和线路保护。

    Auto recloser coil burn-out protection
    7.
    发明授权
    Auto recloser coil burn-out protection 失效
    自动重合闸线圈烧坏保护

    公开(公告)号：US4899247A

    公开(公告)日：1990-02-06

    申请号：US215731

    申请日：1988-07-06

    Applicant: John S. Stewart

    Inventor： John S. Stewart

    IPC: H02H3/06 ,  H02H7/00

    CPC classification number: H02H3/06 ,  H02H7/008

    Abstract: An auto-recloser for a power line has a high voltage closing coil (12) for closing the main contact (14) in the power line, the closing coil being energized via a non-latching switching (18) in turn controlled by a low voltage closing coil (20). A time closing pulse is applied to the low voltage coil (20) to close switch (18) for a very short time period. A coil protection (24) monitors the status of the main contants (14) and if these have not closed after a preselected time period of typically 100 ms then the protection circuit opens a normally closed switch in series with the low voltage coil (20) to prevent further closing pulses being applied in further attempts to close the main contacts (14).

    Abstract translation: 用于电力线的自动重合器具有用于闭合电力线中的主触点（14）的高电压闭合线圈（12），闭合线圈通过非锁定开关（18）被依次控制为低电平 电压闭合线圈（20）。 将时间关闭脉冲施加到低电压线圈（20）以在非常短的时间段内闭合开关（18）。 线圈保护（24）监视主要持续人（14）的状态，并且如果它们在通常为100ms的预选时间段之后没有关闭，则保护电路打开与低压线圈（20）串联的常闭开关， 以防止进一步关闭脉冲被进一步尝试关闭主触点（14）。

    Protective means for series capacitors
    8.
    发明授权
    Protective means for series capacitors 失效
    串联电容器的保护装置

    公开(公告)号：US4432029A

    公开(公告)日：1984-02-14

    申请号：US394810

    申请日：1982-07-02

    Applicant: Bertil Lundqvist

    Inventor： Bertil Lundqvist

    IPC: H02H7/00 ,  H02H7/16

    CPC classification number: H02H7/008 ,  H02H7/16

    Abstract: A protective means for a series capacitor in a high-voltage network comprises a voltage-dependent resistor (varistor) arranged in parallel with the series capacitor, a spark gap arranged in parallel with the varistor for shunting the latter when it becomes overloaded, a current-sensing member, for example a current transformer, for sensing the current through the varistor, an energy absorption detector for sensing the temperature of the varistor, and a pulse transformer electrically or magnetically connected to the current-sensing member, for triggering the spark gap. During normal operation of the network and the series capacitor the current-sensing member is short-circuited by a normally closed switching device. This switching device is controlled by the energy absorption detector in such a way that the switching device is opened if the temperature of the varistor exceeds a predetermined level, whereby a trigger pulse, generated directly by the varistor current via the current-sensing member and the pulse transformer, may pass to the spark gap.

    Abstract translation: 用于高电压网络中的串联电容器的保护装置包括与串联电容器并联布置的与电压相关的电阻器（压敏电阻器），与压敏电阻并联布置的火花隙，用于在变压器过载时分流，电流 感测部件，例如电流互感器，用于感测通过压敏电阻的电流，用于感测压敏电阻的温度的能量吸收检测器，以及电或磁性地连接到电流感测部件的脉冲变压器，用于触发火花隙 。 在网络和串联电容器正常工作期间，电流检测元件由常闭开关器件短路。 该开关装置由能量吸收检测器控制，使得如果压敏电阻的温度超过预定电平，则开关装置断开，由此通过电流检测部件直接由非线性电阻电流产生的触发脉冲和 脉冲变压器，可能会传递到火花隙。

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