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    SUB-CONTACT UNIT AND DIRECT CURRENT RELAY INCLUDING SAME
    1.
    发明公开
    SUB-CONTACT UNIT AND DIRECT CURRENT RELAY INCLUDING SAME 审中-公开

    公开(公告)号：US20240363297A1

    公开(公告)日：2024-10-31

    申请号：US18291893

    申请日：2022-10-17

    申请人： LS ELECTRIC CO., LTD.

    发明人： Ha Su KIM ,  Jin Hee PARK

    IPC分类号： H01H33/72 ,  H01H33/02 ,  H01H33/53

    CPC分类号： H01H33/72 ,  H01H33/025 ,  H01H33/53

    摘要： A sub contact part and a direct current (DC) relay including the same are disclosed. The sub contact part according to one aspect of the present disclosure may include a body part having spaces spaced apart from each other therein and; and a plurality of sub connectors each accommodated in the spaces of the body part and electrically connected to an external control power source and a core part, wherein the body part includes a plurality of legs each having the spaces spaced apart from each other therein and extending in one direction; and a bridge extending between the plurality of legs and coupled to each of the plurality of legs.

    ELECTRIC SWITCHING DEVICE
    4.
    发明申请
    ELECTRIC SWITCHING DEVICE 有权

    公开(公告)号：US20230109760A1

    公开(公告)日：2023-04-13

    申请号：US17915564

    申请日：2020-04-03

    申请人： HITACHI ENERGY SWITZERLAND AG

    发明人： Lukasz Bachorz ,  Timothy Heemskerk ,  Jonathan Lam

    IPC分类号： H01H33/02 ,  H01H33/59

    摘要： An electric device comprises a first and second voltage sensor, a current sensor, an actuator and a controller. The first voltage sensor senses a first voltage at a first contact of a switch inside the electric device and generates a first voltage signal indicating the first voltage, the first contact of the switch coupled to a source line. The second voltage sensor senses a second voltage at a second contact of the switch and generates a second voltage signal indicating the second voltage, the second contact is coupled to a reactive component. The current sensor senses a current at the second contact of the switch and generates an output signal indicating the current. The controller is coupled to the voltage sensors, the current sensor and the actuator and causes, based on at least one of the voltage and current signals, the actuator to actuate one of the contacts to execute switching at a predetermined point of the first voltage.

    System and method for operating an electrical switch
    5.
    发明授权
    System and method for operating an electrical switch 有权

    公开(公告)号：US11545321B2

    公开(公告)日：2023-01-03

    申请号：US17218988

    申请日：2021-03-31

    申请人： Hubbell Incorporated

    发明人： David Adelbert Rhein ,  Cong Thanh Dinh

    IPC分类号： H01H33/02 ,  H01H33/66

    摘要： A switch including a first electrical terminal, the first electrical terminal including a blade pivotable between an open position and a closed position, and a rod extending from the first electrical terminal parallel to the blade. The switch further includes a second electrical terminal configured to receive the blade when in the closed position, the second electrical terminal including a vacuum interrupter, wherein the vacuum interrupter engages the rod when in the closed position. Rotating the first electrical terminal in a first direction causes the blade to disengage from the second electrical terminal at a first point, and further rotating the first electrical terminal in the first direction causes the rod to disengage from the vacuum interrupter at a second point.

    Heat sink for a high voltage switchgear
    6.
    发明授权
    Heat sink for a high voltage switchgear 有权

    公开(公告)号：US11521807B2

    公开(公告)日：2022-12-06

    申请号：US17146502

    申请日：2021-01-12

    申请人： ABB Schweiz AG

    发明人： Michael Blaz ,  Oliver Baier ,  Gianluca Cortinovis

    IPC分类号： H02B1/56 ,  H05K7/20 ,  H01H9/52 ,  H01H33/02

    摘要： A heat sink for a high voltage switchgear includes: a body. The body is centered around a central axis that extends in an axial direction from a first outer surface of the body to a second outer surface of the body. At least one third outer surface of the body extends from the first outer surface to the second outer surface. At least one air channel extends through the body from the first outer surface to the second outer surface. The at least one air channel is surrounded by the at least one third outer surface.

    DISCONNECTOR FOR SWITCHGEAR
    7.
    发明申请
    DISCONNECTOR FOR SWITCHGEAR 有权

    公开(公告)号：US20220384127A1

    公开(公告)日：2022-12-01

    申请号：US17753728

    申请日：2020-02-07

    申请人： ABB Schweiz AG

    发明人： Congming Yan ,  Liqun Huang ,  Xin Liu ,  Andre Bieri

    IPC分类号： H01H33/02 ,  H01H3/40 ,  H01H31/28 ,  H01H9/00 ,  H01H9/02

    摘要： Embodiments of a disconnector and a switchgear, wherein the disconnector comprises a contact assembly operable to change a status of a circuit, the disconnector arranged in the circuit; shafts adapted to be driven to rotate to operate the contact assembly; and a transmission unit arranged between the shafts and comprising: a plurality of gears coupled to the shafts to enable the shafts to rotate with a mutual engagement of the plurality of gears; and a holding assembly adapted to hold radial positions of the plurality of gears to ensure the mutual engagement of the plurality of gears. By arranging the holding assembly to hold the radial positions of the gears to ensure the mutual engagement of the plurality of gears, only one input shaft and one transmission unit are enough to transmit large torques sufficient to operate the contact assembly.

    Voltage readings using high voltage resistor across vacuum interrupter
    8.
    发明授权
    Voltage readings using high voltage resistor across vacuum interrupter 有权

    公开(公告)号：US11508539B2

    公开(公告)日：2022-11-22

    申请号：US17489940

    申请日：2021-09-30

    申请人： S&C Electric Company

    发明人： Alejandro Montenegro

    IPC分类号： H01H33/02 ,  G01R27/16 ,  H01H33/666 ,  H01H33/668 ,  G01R15/20 ,  G01R27/26

    摘要： A switch assembly including a switch and a high impedance element used for energy harvesting purposes that are connected to a power line and assembly electronics. The high impedance element has higher impedance than the switch so that current flows through the switch from the power line when the switch is closed and through the high impedance element from the power line when the switch is open. The switch assembly also includes a current sensing device, such as a current sensing resistor, electrically coupled in series with the high impedance element and the electronics. By measuring the current flow using the current sensing device, it is possible to infer the voltage across the high impedance element since its impedance is known. This voltage can be used to provide point on wave closing of the switch and to determine the line voltage magnitude.

    Electric interruption switch comprising reactive coating in the reaction chamber
    9.
    发明授权
    Electric interruption switch comprising reactive coating in the reaction chamber 有权

    公开(公告)号：US11437210B2

    公开(公告)日：2022-09-06

    申请号：US16960625

    申请日：2019-01-08

    申请人： Peter Lell

    发明人： Peter Lell

    IPC分类号： H01H33/02 ,  H01H39/00

    摘要： An interruption switch is provided for interrupting high currents at high voltages, with a casing, which surrounds a contact unit defining the current path through the interruption switch which has a first and second connection contact and a separation region. The contact unit is formed such that a current can be supplied to it via the first connection contact and can be discharged therefrom via the second connection contact, or vice versa. The separation region is formed such that, when it is separated, the current path between the first connection contact and the second connection contact is interrupted. The separation region is arranged inside a reaction chamber. A coating with a reactive material is present in the reaction chamber. The reactive material is designed such that under the influence of an electric arc it attenuates or extinguishes the electric arc.