公开(公告)号：US11594390B2

公开(公告)日：2023-02-28

申请号：US17207883

申请日：2021-03-22

申请人： Ze Chen

发明人： Ze Chen ,  Gui Chen

IPC分类号： H01H71/02 ,  H02H1/00 ,  H01H71/04 ,  H01H71/62 ,  H01H83/04 ,  H02H3/32 ,  H01H47/00 ,  H01H50/02 ,  H01H50/44 ,  H01H83/14 ,  H02H3/16 ,  H02H3/33 ,  H01H71/24 ,  H01H71/58 ,  H01H83/20 ,  H01H89/00 ,  H02H3/04

摘要： A circuit for a circuit interrupter is provided. The circuit may in include a first SCR configured to receive a first trigger signal at a gate of the first SCR, a second SCR configured to receive a second trigger signal at a gate of the second SCR, and a third SCR configured to receive a third trigger signal at a gate of the third SCR. A cathode of the first SCR may be connected to an anode of the third SCR. A cathode of the second SCR and a cathode of the third SCR may be connected to a ground. Methods of operating a circuit interrupter and a circuit are also provided.

公开(公告)号：US11581159B2

公开(公告)日：2023-02-14

申请号：US16558636

申请日：2019-09-03

申请人： Eaton Intelligent Power Limited

发明人： Jeffrey Scott Gibson

IPC分类号： H01H71/24 ,  H01H71/52 ,  H01H71/02 ,  H01H83/20 ,  H01H33/04 ,  H01H71/12

摘要： Circuit interrupter devices have a first housing with a circuit interrupter, a second housing coupled to the first housing, a ground fault circuit and current transformer in the second housing. The current transformer has an open channel. The circuit interrupter devices also include at least one power conductor having a rigid or semi-rigid body with opposing first and second end portions extending between the first and second housings. The second end portion of the at least one power conductor extends through the open channel in the current transformer and terminates in a breaker load collar(s).

公开(公告)号：US11551899B2

公开(公告)日：2023-01-10

申请号：US16720506

申请日：2019-12-19

申请人： Amber Semiconductor, Inc.

发明人： Mark Telefus ,  Stephen C. Gerber ,  Damon M. Baker ,  Kenneth D. Alton

IPC分类号： H01H71/04 ,  H01H71/12 ,  H02H1/00 ,  H02H3/08 ,  H01H71/24 ,  G01R15/20 ,  H02H3/33 ,  G01R19/175 ,  H01H9/54 ,  H01H9/56 ,  H01H33/59 ,  H02J13/00 ,  H02M7/06

摘要： A circuit breaker comprises a solid-state bidirectional switch, a switch control circuit, current and voltage sensors, and a processor. The solid-state bidirectional switch is connected between a line input terminal and a load output terminal of the circuit breaker, and configured to be placed in a switched-on state and a switched-off state. The switch control circuit control operation of the bidirectional switch. The current sensor is configured to sense a magnitude of current flowing in an electrical path between the line input and load output terminals and generate a current sense signal. The voltage sensor is configured to sense a magnitude of voltage on the electrical path and generate a voltage sense signal. The processor is configured to process the current and voltage sense signals to determine operational status information of the circuit breaker, a fault event, and power usage information of a load connected to the load output terminal.

公开(公告)号：US20220406550A1

公开(公告)日：2022-12-22

申请号：US17756063

申请日：2020-04-09

申请人： LS ELECTRIC CO., LTD.

发明人： Jeongjae LIM

IPC分类号： H01H71/12 ,  H01H71/24 ,  H01H71/02

摘要： A crossbar assembly and a trip assembly comprising same are disclosed. The crossbar assembly according to an embodiment of the present disclosure comprises a crossbar and an instant bar. The crossbar and the instant bar can be rotatably coupled so as to be rotatable around the same rotary shaft. Therefore, the space required for rotation can be reduced to be less than when the crossbar and the instant bar are individually rotated. In addition, the crossbar can move in a longitudinal direction when coupled to the instant bar. Therefore, a metallic bar for movement of the crossbar is unnecessary. Therefore, interference between different-phase currents flowing through the trip assembly can be minimized.

公开(公告)号：US11070053B2

公开(公告)日：2021-07-20

申请号：US16412053

申请日：2019-05-14

申请人： Koolbridge Solar, Inc.

发明人： Paul Wilkinson Dent

IPC分类号： H02H9/00 ,  H02H9/02 ,  H01H71/24

摘要： A fast-operating AC fault current limiter, to limit the fault current let through to downstream equipment during short circuit or low-impedance faults, comprises a series inductor to limit current rise time, a current sensor to sense the instantaneous current, a series AC semiconductor switch to interrupt current flow when it exceeds the maximum desired fault current, and a shunt AC semiconductor switch to catch inductor flyback voltage when the series semiconductor switch is opened. Each of the series and the shunt AC switches comprises two back-to-back MOSFETs. Inventive control of timing of the individual MOSFETs obviates the need for exact simultaneous timing of opening the series switch and closing the shunt switch, which is otherwise required to avoid short circuits.

公开(公告)号：US10861664B2

公开(公告)日：2020-12-08

申请号：US16067422

申请日：2016-12-21

申请人： HYOSUNG HEAVY INDUSTRIES CORPORATION

发明人： Hyun Mo An ,  Hui Dong Hwang ,  Dong Joon Sim

IPC分类号： H01H77/00 ,  H01H50/30 ,  H01H33/28 ,  H01H33/38 ,  H01H50/04 ,  H01H50/22 ,  H01H71/24 ,  H01H73/36 ,  H01H71/32 ,  H01H3/60 ,  H01H33/666 ,  H01H3/28 ,  H01H33/59 ,  H01H50/32 ,  H01H50/36 ,  H01H50/44 ,  H01H50/64

摘要： An actuator for a high-speed switch is proposed. The actuator can include a frame having multiple mounting plates and columns. The mounting plates have parts installed thereon or movably supported thereby. The columns maintain the space between the mounting plates. A permanent magnet is installed on one of the mounting plates so as to face the second driving plate, and an elastic member is installed on the mounting plate that faces the mounting plate having the permanent magnet installed thereon, so as to provide force for the movement of the second driving plate.

公开(公告)号：US20200219691A1

公开(公告)日：2020-07-09

申请号：US16649992

申请日：2017-12-01

申请人： Mitsubishi Electric Corporation

发明人： Takashi INAGUCHI ,  Kazuki TAKAHASHI ,  Katsuki HOTTA ,  Hiroyuki NOZAKI

IPC分类号： H01H71/24

摘要： A contactor includes a fixed iron core, a movable iron core, an operation coil, a first crossbar, a tripping spring, and a second crossbar. The contactor includes a push spring to push a movable contact toward a fixed contact, a trip coil connected to the fixed contact, and a plunger that is operated by an electromagnetic force generated in the trip coil when a current of a predetermined value or higher flows through the trip coil. The contactor includes an opening lever to push the second crossbar in a direction away from the first crossbar in conjunction with the operation of the plunger.

公开(公告)号：US20200219679A1

公开(公告)日：2020-07-09

申请号：US16817878

申请日：2020-03-13

申请人： EATON INTELLIGENT POWER LIMITED

发明人： Xin Zhou ,  Brian E. Carlson

IPC分类号： H01H9/54 ,  H01H1/42 ,  H01H77/10 ,  H01H33/59 ,  H01H71/24 ,  H03K17/60 ,  H01H71/12 ,  H01H85/041 ,  H01H89/00

摘要： An isolation disconnect assembly for an insulated gate bipolar transistor assembly is provided. The isolation disconnect assembly includes a conductor assembly and a clinch joint magnetic actuator.

公开(公告)号：US20200152408A1

公开(公告)日：2020-05-14

申请号：US16667395

申请日：2019-10-29

申请人： S&C Electric Company

发明人： Goran Djogo ,  Richard George Smith ,  Daniel Hunter Desmond

IPC分类号： H01H71/24 ,  H01H33/666

摘要： A magnetic module in a circuit interrupting system is configured to generate a blow-on force that pushes a moving contact toward a stationary contact. The magnetic module includes: a coil conductor having an opening through which a moving stem of the moving contact may move, wherein the coil conductor is electrically connected to the moving stem and a first auxiliary conductor, wherein the coil conductor is configured to allow current to flow from the moving stem to the first auxiliary conductor; a plunger attached to an end of the moving stem; and a first magnetic core shaped to fit around a first section of the coil conductor, wherein the first magnetic core is configured, when current flows through the coil conductor to the first auxiliary conductor, to become magnetized, attract the plunger toward the magnetic core, and cause the moving stem of the moving contact to move toward the stationary contact.

公开(公告)号：US20200090891A1

公开(公告)日：2020-03-19

申请号：US16133034

申请日：2018-09-17

申请人： Siemens Industry, Inc.

发明人： Russell Thomas Watford

IPC分类号： H01H71/24 ,  H02H3/02 ,  H02H3/08 ,  H01H71/32 ,  H01H71/02

摘要： A circuit breaker includes a first electrical contact and a second electrical contact moveable between an open state and a closed state; an armature, wherein movement of the armature from a first position to a second position initiates the first electrical contact and the second electrical contact to move from the closed state to the open state; a first electromagnetic device configured to move the armature from the first position to the second position in response to being energized by a first signal; and a second electromagnetic device configured to move the armature from the first position to the second position in response to being energized by a second signal and in response to generation of the first signal and the first electrical contact and the second electrical contact still being in the closed state. Other circuit breakers and methods of operating circuit breakers are disclosed.