公开(公告)号：US20240145186A1

公开(公告)日：2024-05-02

申请号：US17975751

申请日：2022-10-28

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Asish Das ,  Santhosh Kumar Chamarajanagar Govinda Nayaka ,  Robert Michael Slepian ,  Xin Zhou

IPC: H01H3/22 ,  H01F7/06 ,  H01H3/54 ,  H01H33/28

CPC classification number: H01H3/222 ,  H01F7/06 ,  H01H3/54 ,  H01H33/285

Abstract: A dual conductor Thomson coil actuator for use in opening the separable contacts of a circuit interrupter comprises two nested conductors wound to form a single coil, rather than the traditional design comprising one single conductor wound to form a coil of the same size. Each of the two conductors can be excited by half the capacitance that would be used to excite the traditional single conductor coil, using the same voltage as the single conductor coil. When the same total capacitor-stored energy that would be used to excite the single conductor coil is instead used to excite the dual conductor coil, the initial pulse of aggregate current through the dual conductor coil is greater than the initial pulse of current through the single conductor coil, resulting in a faster initial opening distance of the separable contacts during an opening stroke.

公开(公告)号：US20230282432A1

公开(公告)日：2023-09-07

申请号：US18197489

申请日：2023-05-15

Applicant: Southern Electrical Equipment Company, Inc.

Inventor： Andrew S. PANTO ,  Barry Craig Thomas ,  Doug Lanter ,  Dillon Surface

IPC: H01H33/666 ,  H01H33/28 ,  H01H33/668 ,  H01H1/66 ,  H01H3/26

CPC classification number: H01H33/6661 ,  H01H33/28 ,  H01H33/668 ,  H01H1/66 ,  H01H3/26 ,  H01H33/666

Abstract: A group-operated switching system for multi-phase electrical transmission lines including a number of inline axial switches for opening and closing circuits to control electrical flow through the transmission lines. The switches include axially mounted load break vacuum interrupters and are mechanically and electrically isolated from each other and from a control box. The control box communicates with the inline switches via RF communications. Power for the switch electronics and operations can be provided from line power, a battery, or a capacitive source.

公开(公告)号：US11688572B2

公开(公告)日：2023-06-27

申请号：US17358462

申请日：2021-06-25

Applicant: Southern Electrical Equipment Company, Inc.

Inventor： Andrew S. Panto ,  Barry Craig Thomas ,  Doug Lanter ,  Dillon Surface

IPC: H01H1/66 ,  H01H3/26 ,  H01H33/28 ,  H01H33/666 ,  H01H33/668

CPC classification number: H01H33/6661 ,  H01H1/66 ,  H01H3/26 ,  H01H33/28 ,  H01H33/666 ,  H01H33/668

Abstract: A group-operated switching system for multi-phase electrical transmission lines including a number of inline axial switches for opening and closing circuits to control electrical flow through the transmission lines. The switches include axially mounted load break vacuum interrupters and are mechanically and electrically isolated from each other and from a control box. The control box communicates with the inline switches via RF communications. Power for the switch electronics and operations can be provided from line power, a battery, or a capacitive source.

公开(公告)号：US11271375B2

公开(公告)日：2022-03-08

申请号：US17402636

申请日：2021-08-16

Applicant: ABB Schweiz AG

Inventor： Dietmar Gentsch ,  Christian Reuber

IPC: H01H33/28 ,  H01H33/666 ,  H02B13/075

Abstract: An earthing module for a switchgear includes: a cylinder; a piston; a stored energy unit; and at least one photovoltaic cell. The cylinder connects to a part of a switchgear at earth potential. The piston moves within the cylinder from a standby position to a released position along an axis of the cylinder. When in the released position, the piston is in electrical connection with the cylinder. The stored energy unit is located within or associated with the earthing module such that activation of the stored energy unit moves the piston from the standby position to the released position. One or more of the at least one photovoltaic cell activates the stored energy unit based on radiation from an electrical arc of the switchgear impinging upon the one or more of the at least one photovoltaic cell.

公开(公告)号：US11183352B2

公开(公告)日：2021-11-23

申请号：US16857793

申请日：2020-04-24

Applicant: LS ELECTRIC CO., LTD.

Inventor： Seungpil Yang

IPC: H01H33/28 ,  H01H71/04 ,  H01H31/02 ,  H01H71/12

Abstract: Disclosed is an air circuit breaker including a safety cover. According to embodiments disclosed herein, a setting unit of an overcurrent trip relay exposed to the outside through an opening is covered by the safety cover, and thus manipulation of the setting unit is not allowed before opening the safety cover. Accordingly, an accident due to malfunction or manipulation of the overcurrent trip relay by an unauthorized person may be prevented.

公开(公告)号：US20210057176A1

公开(公告)日：2021-02-25

申请号：US17040385

申请日：2019-03-20

Applicant: Mitsubishi Electric Corporation

Inventor： Taiki DONEN ,  Toshihiko TAKEMATSU ,  Satoshi OCHI ,  Yuichi TAKAI

IPC: H01H33/28 ,  H01H33/42 ,  H01H33/666

Abstract: Provided is a small-sized, reliable vacuum interrupter that does not involve upsizing and complication of the reduction load application mechanism. A vacuum interrupter of the present invention includes a magnetic body disposed on a circumferential edge around a stem surface of at least one of a moving current-carrying stem and a fixed current-carrying stem. The magnetic body includes a lower magnetic permeance portion having a lower magnetic permeance than the other portion. The lower magnetic permeance portion produces a magnetic field parallel to the axial direction. Arc discharge is driven in the direction of the parallel magnetic field, thus being extinguished.

公开(公告)号：US10910169B1

公开(公告)日：2021-02-02

申请号：US16879355

申请日：2020-05-20

Applicant: Mark A. Ward

Inventor： Mark A. Ward

IPC: H02H3/00 ,  H01H9/16 ,  H01H33/28 ,  H01H33/02 ,  H01H9/54

Abstract: A method is disclosed. The method includes attaching a light beam emitter to an electrical control assembly having at least one control member that is electrically connected to an electrical component, emitting a light beam from the light beam emitter across the at least one control member, moving the at least one control member between a first position in which the light beam is unblocked by the at least one control member and a second position in which the light beam is blocked by the at least one control member, and connecting the light beam emitter to a notification device via an electrical circuit. The method also includes preventing electrical current flow to the notification device when the at least one control member is in the first position.

公开(公告)号：US20190198271A1

公开(公告)日：2019-06-27

申请号：US16099708

申请日：2017-05-08

Applicant: Camlin Technologies Limited

Inventor： Mark Muir

IPC: H01H33/28 ,  H01H33/666 ,  H02N2/04 ,  H01H33/664

CPC classification number: H01H33/28 ,  H01H1/0203 ,  H01H1/502 ,  H01H3/22 ,  H01H33/664 ,  H01H33/6642 ,  H01H33/666 ,  H01H57/00 ,  H01H2033/6648 ,  H01H2221/072 ,  H02N2/043

Abstract: A vacuum circuit breaker comprises a vacuum interrupter operable between a closed state and an open state, and an actuator. The actuator comprises a piezoelectric driving element that is expandable and contractable along an expansion axis in response to an electrical input signal. The actuator further comprises a mechanical amplifying structure extendable along an actuation axis and being mechanically coupled to the piezoelectric driver such that expansion or contraction of said piezoelectric driving element causes the amplifying structure to extend or retract along the actuation axis. The mechanical amplifying structure is coupled to the vacuum interrupter for operating the vacuum interrupter between said closed and open states.

公开(公告)号：US20190108959A1

公开(公告)日：2019-04-11

申请号：US16196455

申请日：2018-11-20

Applicant: The Florida State University Research Foundation, Inc.

Inventor： Lukas Graber ,  Christopher Widener ,  Samantha Smith ,  Michael Steurer

IPC: H01H57/00 ,  H01H33/28 ,  H01H55/00

CPC classification number: H01H57/00 ,  H01H33/14 ,  H01H33/28 ,  H01H33/64 ,  H01H33/666 ,  H01H55/00

Abstract: An ultrafast electromechanical switch having a drive mechanism comprising two non-movable contacts connected to electrical feedthroughs, one actuator and one movable contact. The provided ultrafast electrical (e.g., transfer, disconnect, etc.) switch is simple, compact, clean, exhibits ultralow loss, does not require high energy to operate and is capable of being automatically reset.

公开(公告)号：US20190088433A1

公开(公告)日：2019-03-21

申请号：US16196800

申请日：2018-11-20

Applicant: The Florida State University Research Foundation, Inc.

Inventor： Lukas Graber ,  Christopher Widener ,  Samantha Smith ,  Michael Steurer

IPC: H01H57/00 ,  H01H33/28 ,  H01H55/00 ,  H01H33/666 ,  H01H33/14 ,  H01H33/64

CPC classification number: H01H57/00 ,  H01H33/14 ,  H01H33/28 ,  H01H33/64 ,  H01H33/666 ,  H01H55/00

Abstract: An ultrafast electromechanical switch having a drive mechanism comprising three non-movable contacts, an actuator and two movable contacts. The switch further including a switching chamber to provide a self-contained environment that may consist of a high-pressure gas or a vacuum and one or more precision adjustment screws coupled to the non-movable contacts for adjusting the contact pressure. The provided ultrafast electrical (e.g., transfer, disconnect, etc.) switch is simple, compact, clean, exhibits ultralow loss, does not require high energy to operate and is capable of being automatically reset.