CA2316369A1 - Improvements in and relating to electromagnetic actuators - Google Patents

Improvements in and relating to electromagnetic actuators Download PDF

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Publication number
CA2316369A1
CA2316369A1 CA002316369A CA2316369A CA2316369A1 CA 2316369 A1 CA2316369 A1 CA 2316369A1 CA 002316369 A CA002316369 A CA 002316369A CA 2316369 A CA2316369 A CA 2316369A CA 2316369 A1 CA2316369 A1 CA 2316369A1
Authority
CA
Canada
Prior art keywords
actuator mechanism
actuator
circuit breaker
primary
closing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002316369A
Other languages
French (fr)
Other versions
CA2316369C (en
Inventor
Stephen Ernest Lane
Martin Snell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fki Plc
Original Assignee
Fki Plc
Stephen Ernest Lane
Martin Snell
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fki Plc, Stephen Ernest Lane, Martin Snell filed Critical Fki Plc
Publication of CA2316369A1 publication Critical patent/CA2316369A1/en
Application granted granted Critical
Publication of CA2316369C publication Critical patent/CA2316369C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6662—Operating arrangements using bistable electromagnetic actuators, e.g. linear polarised electromagnetic actuators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2209—Polarised relays with rectilinearly movable armature

Abstract

An actuator for a circuit breaker includes a primary actuator mechanism for closing the circuit breaker contacts and resisting the closing, blow-open and contact pressure forces and a secondary actuator for providing or assisting in providing a fast acting opening of the contacts. The actuator includes a drive shaft for coupling to a movable contact of a circuit breaker, the primary actuator mechanism being adapted to propel the drive shaft between a first position and a second position, and the secondary actuator mechanism being adapted to upon receiving a trigger signal, shorten the effective length of the drive shaft. In another configuration, the primary actuator mechanism drives a drive link from a first position to a second position during a closing strokes, the secondary actuator mechanism operates in concert with the primary actuator to drive the drive link from the second position to the first position during an opening stroke; the secondary actuator is reset by the primary actuator mechanism during a subsequent part of the opening stroke.
CA002316369A 1997-12-22 1998-12-15 Improvements in and relating to electromagnetic actuators Expired - Fee Related CA2316369C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9727148.0 1997-12-22
GBGB9727148.0A GB9727148D0 (en) 1997-12-22 1997-12-22 Improvemnts in and relating to electomagnetic actuators
PCT/GB1998/003767 WO1999033078A1 (en) 1997-12-22 1998-12-15 Improvements in and relating to electromagnetic actuators

Publications (2)

Publication Number Publication Date
CA2316369A1 true CA2316369A1 (en) 1999-07-01
CA2316369C CA2316369C (en) 2006-12-05

Family

ID=10824098

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002316369A Expired - Fee Related CA2316369C (en) 1997-12-22 1998-12-15 Improvements in and relating to electromagnetic actuators

Country Status (12)

Country Link
US (1) US6285270B1 (en)
EP (1) EP1042771B1 (en)
AT (1) ATE233429T1 (en)
AU (1) AU747153B2 (en)
CA (1) CA2316369C (en)
DE (1) DE69811736T2 (en)
ES (1) ES2198083T3 (en)
GB (2) GB9727148D0 (en)
MY (1) MY117541A (en)
PT (1) PT1042771E (en)
WO (1) WO1999033078A1 (en)
ZA (1) ZA9811771B (en)

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DE19910326C2 (en) * 1999-03-09 2001-03-15 E I B S A Bistable magnetic drive for a switch
FR2846469B1 (en) * 2002-10-23 2004-12-03 Schneider Electric Ind Sas MODULAR ACTUATOR FOR SWITCHING APPARATUS
US7417782B2 (en) 2005-02-23 2008-08-26 Pixtronix, Incorporated Methods and apparatus for spatial light modulation
US9229222B2 (en) 2005-02-23 2016-01-05 Pixtronix, Inc. Alignment methods in fluid-filled MEMS displays
US7271945B2 (en) * 2005-02-23 2007-09-18 Pixtronix, Inc. Methods and apparatus for actuating displays
US7999994B2 (en) 2005-02-23 2011-08-16 Pixtronix, Inc. Display apparatus and methods for manufacture thereof
US7616368B2 (en) 2005-02-23 2009-11-10 Pixtronix, Inc. Light concentrating reflective display methods and apparatus
US7675665B2 (en) 2005-02-23 2010-03-09 Pixtronix, Incorporated Methods and apparatus for actuating displays
US8310442B2 (en) 2005-02-23 2012-11-13 Pixtronix, Inc. Circuits for controlling display apparatus
US7304786B2 (en) 2005-02-23 2007-12-04 Pixtronix, Inc. Methods and apparatus for bi-stable actuation of displays
US7502159B2 (en) 2005-02-23 2009-03-10 Pixtronix, Inc. Methods and apparatus for actuating displays
US8159428B2 (en) 2005-02-23 2012-04-17 Pixtronix, Inc. Display methods and apparatus
US7304785B2 (en) * 2005-02-23 2007-12-04 Pixtronix, Inc. Display methods and apparatus
US7742016B2 (en) 2005-02-23 2010-06-22 Pixtronix, Incorporated Display methods and apparatus
US8482496B2 (en) 2006-01-06 2013-07-09 Pixtronix, Inc. Circuits for controlling MEMS display apparatus on a transparent substrate
US20070205969A1 (en) 2005-02-23 2007-09-06 Pixtronix, Incorporated Direct-view MEMS display devices and methods for generating images thereon
US9082353B2 (en) 2010-01-05 2015-07-14 Pixtronix, Inc. Circuits for controlling display apparatus
US9158106B2 (en) 2005-02-23 2015-10-13 Pixtronix, Inc. Display methods and apparatus
US7746529B2 (en) 2005-02-23 2010-06-29 Pixtronix, Inc. MEMS display apparatus
US8519945B2 (en) 2006-01-06 2013-08-27 Pixtronix, Inc. Circuits for controlling display apparatus
US7755582B2 (en) 2005-02-23 2010-07-13 Pixtronix, Incorporated Display methods and apparatus
US9261694B2 (en) 2005-02-23 2016-02-16 Pixtronix, Inc. Display apparatus and methods for manufacture thereof
US8526096B2 (en) 2006-02-23 2013-09-03 Pixtronix, Inc. Mechanical light modulators with stressed beams
US7545245B2 (en) * 2006-05-01 2009-06-09 Eaton Corporation Manual opening device and electrical switching apparatus employing the same
US7876489B2 (en) 2006-06-05 2011-01-25 Pixtronix, Inc. Display apparatus with optical cavities
WO2008051362A1 (en) 2006-10-20 2008-05-02 Pixtronix, Inc. Light guides and backlight systems incorporating light redirectors at varying densities
US7557682B2 (en) * 2006-12-01 2009-07-07 Eaton Corporation Inertial solenoid delay for the opening of medium voltage circuit breakers
US9176318B2 (en) 2007-05-18 2015-11-03 Pixtronix, Inc. Methods for manufacturing fluid-filled MEMS displays
US7852546B2 (en) 2007-10-19 2010-12-14 Pixtronix, Inc. Spacers for maintaining display apparatus alignment
US8248560B2 (en) 2008-04-18 2012-08-21 Pixtronix, Inc. Light guides and backlight systems incorporating prismatic structures and light redirectors
US8169679B2 (en) 2008-10-27 2012-05-01 Pixtronix, Inc. MEMS anchors
CN102834859B (en) 2010-02-02 2015-06-03 皮克斯特罗尼克斯公司 Circuits for controlling display apparatus
JP2013519121A (en) 2010-02-02 2013-05-23 ピクストロニックス・インコーポレーテッド Method for manufacturing a cold sealed fluid filled display device
JP5275301B2 (en) * 2010-08-12 2013-08-28 株式会社日立製作所 Air circuit breaker
US8729985B2 (en) * 2012-01-23 2014-05-20 Electro-Mechanical Corporation Switchgear visible disconnect mechanical interlock
CN102592902B (en) * 2012-02-22 2013-07-17 西安交通大学 High-speed opening operation mechanism of middle-and-low-voltage direct-current circuit breaker
DK2854143T3 (en) * 2012-05-21 2017-04-24 Mitsubishi Electric Corp ELECTROMAGNETIC DEVICE AND SWITCHING DEVICE USING THE ELECTROMAGNETIC DEVICE
US9070517B2 (en) 2012-08-13 2015-06-30 Electro-Mechanical Corporation Vacuum interrupter and linear disconnect switch
US9134552B2 (en) 2013-03-13 2015-09-15 Pixtronix, Inc. Display apparatus with narrow gap electrostatic actuators
DE102013013585B4 (en) 2013-06-20 2020-09-17 Rhefor Gbr Self-holding magnet with particularly low electrical tripping power
CN109791827B (en) * 2016-06-24 2021-10-12 耐诺波特技术有限公司 Haptic feedback actuator, electronic device and operation method thereof
KR20180064015A (en) * 2016-12-05 2018-06-14 엘에스산전 주식회사 Circuit breaker
CN106971914A (en) * 2017-05-11 2017-07-21 嘉灵开关制造(中山)有限公司 High breaking relay
CN108091520A (en) * 2017-12-26 2018-05-29 福建信息职业技术学院 A kind of low-power consumption integrated relay switch
EP3780059A4 (en) * 2018-03-28 2021-10-06 Panasonic Intellectual Property Management Co., Ltd. Circuit breaker
EP3834212B1 (en) 2019-01-31 2023-07-19 S&C Electric Company Manual close assist control mechanism
KR102248495B1 (en) * 2020-02-12 2021-05-04 송기현 Permanent magnetic actuator using low magnetic force

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1956847A (en) * 1930-05-31 1934-05-01 Condit Electrical Mfg Corp Electric switch and switch actuating mechanism
FR2112415B1 (en) * 1970-11-03 1976-07-23 Hartmann & Braun Ag
JPS59158506A (en) * 1983-02-28 1984-09-08 Toshiba Corp Electromagnet
ES2011457B3 (en) * 1985-12-13 1990-01-16 Cmc Carl Maier + Cie Ag MAGNET DISCONNECT FOR DEFECT CURRENT PROTECTION SWITCHES
US5172088A (en) * 1992-02-06 1992-12-15 General Electric Company Molded case circuit breaker combined accessory actuator-reset lever

Also Published As

Publication number Publication date
GB0015409D0 (en) 2000-08-16
ATE233429T1 (en) 2003-03-15
EP1042771A1 (en) 2000-10-11
DE69811736T2 (en) 2003-10-23
AU1571399A (en) 1999-07-12
GB9727148D0 (en) 1998-02-25
WO1999033078A1 (en) 1999-07-01
ZA9811771B (en) 2000-10-10
EP1042771B1 (en) 2003-02-26
GB2347272B (en) 2001-10-17
AU747153B2 (en) 2002-05-09
DE69811736D1 (en) 2003-04-03
US6285270B1 (en) 2001-09-04
GB2347272A (en) 2000-08-30
ES2198083T3 (en) 2004-01-16
PT1042771E (en) 2003-07-31
CA2316369C (en) 2006-12-05
MY117541A (en) 2004-07-31

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