ES2173282T3 - METHOD AND CONTROL DEVICE FOR A SWITCH ACTUATOR. - Google Patents

METHOD AND CONTROL DEVICE FOR A SWITCH ACTUATOR.

Info

Publication number
ES2173282T3
ES2173282T3 ES96915870T ES96915870T ES2173282T3 ES 2173282 T3 ES2173282 T3 ES 2173282T3 ES 96915870 T ES96915870 T ES 96915870T ES 96915870 T ES96915870 T ES 96915870T ES 2173282 T3 ES2173282 T3 ES 2173282T3
Authority
ES
Spain
Prior art keywords
actuator
movement
switch
control
control system
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.)
Expired - Lifetime
Application number
ES96915870T
Other languages
Spanish (es)
Other versions
ES2173282T5 (en
Inventor
Michael P Dunk
Garrett P Mccormick
John Baranowski
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.)
Cooper Industries LLC
Original Assignee
Cooper Industries LLC
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23750169&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2173282(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Cooper Industries LLC filed Critical Cooper Industries LLC
Application granted granted Critical
Publication of ES2173282T3 publication Critical patent/ES2173282T3/en
Publication of ES2173282T5 publication Critical patent/ES2173282T5/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0062—Testing or measuring non-electrical properties of switches, e.g. contact velocity
    • 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
    • H01H33/02—Details
    • H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F2007/1894—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings minimizing impact energy on closure of magnetic circuit
    • 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
    • H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
    • H01H2003/268—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor using a linear motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/56—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle
    • H01H2009/566—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle with self learning, e.g. measured delay is used in later actuations
    • 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
    • H01H33/02—Details
    • H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
    • H01H33/593—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle for ensuring operation of the switch at a predetermined point of the ac cycle
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/32—Energising current supplied by semiconductor device
    • H01H47/325—Energising current supplied by semiconductor device by switching regulator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Gas-Insulated Switchgears (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Vehicle Body Suspensions (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Control Of Position Or Direction (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Control Of Linear Motors (AREA)

Abstract

UN INTERRUPTOR DE CORRIENTE (4) QUE COMPRENDE UN DISPOSITIVO INTERRUPTOR DE LA CORRIENTE (4) QUE TIENE AL MENOS UN CONTACTO MOVIL (71); UN ACCIONADOR (8) ACOPLADO AL CONTACTO MOVIL (71) DEL INTERRUPTOR DE CORRIENTE (4); UN DETECTOR DE REACCION (14) PARA CONTROLAR EL MOVIMIENTO DEL ACCIONADOR (8); Y UN SISTEMA DE CONTROL (12) ACOPLADO AL DETECTOR DE REACCION (14) PARA RECIBIR LA INFORMACION PROCEDENTE DEL DETECTOR DE REACCION (14) RELATIVA AL MOVIMIENTO DEL ACCIONADOR (8) Y PARA CONTROLAR EL MOVIMIENTO DEL ACCIONADOR (8) EN BASE A LA INFORMACION. EL INTERRUPTOR (4) COMPRENDE ADEMAS UNA MEMORIA (202) PARA ALMACENAR UN PERFIL DE MOVIMIENTO DESEADO DEL ACCIONADOR (8); Y UN MICROPROCESADOR (202) PARA COMPARAR EL MOVIMIENTO DEL ACCIONADOR (8) CON EL PERFIL DE MOVIMIENTO DESEADO Y CONTROLAR EL MOVIMIENTO DEL ACCIONADOR (8) TAMBIEN EN BASE A LA COMPARACION DEL MOVIMIENTO DEL ACCIONADOR (8) CON EL PERFIL DE MOVIMIENTO DESEADO. EL INTERRUPTOR (4) COMPRENDE TAMBIEN UN DETECTOR (204) PARA DETECTAR UNAFORMA DE ONDA DE UNA TENSION EN UNA LINEA A INTERRUMPIR Y PROPORCIONAR INFORMACION RELATIVA A LA FORMA DE ONDA DE TENSION AL SISTEMA DE CONTROL (12); CONTROLANDO EL SISTEMA DE CONTROL (12) EL MOVIMIENTO DEL ACCIONADOR (8) TAMBIEN EN BASE A LA INFORMACION RELATIVA A LA FORMA DE ONDA DE TENSION.A CURRENT SWITCH (4) THAT INCLUDES A CURRENT SWITCH DEVICE (4) THAT HAS AT LEAST A MOBILE CONTACT (71); AN ACTUATOR (8) COUPLED TO THE MOBILE CONTACT (71) OF THE POWER SWITCH (4); A REACTION DETECTOR (14) TO CONTROL THE MOVEMENT OF THE ACTUATOR (8); AND A CONTROL SYSTEM (12) COUPLED TO THE REACTION DETECTOR (14) TO RECEIVE THE INFORMATION FROM THE REACTION DETECTOR (14) CONCERNING THE MOVEMENT OF THE ACTUATOR (8) AND TO CONTROL THE MOVEMENT OF THE ACTUATOR (8) BASED ON THE INFORMATION. THE SWITCH (4) ALSO INCLUDES A MEMORY (202) TO STORE A DESIGNATED MOVEMENT PROFILE OF THE ACTUATOR (8); AND A MICROPROCESSOR (202) TO COMPARE THE MOVEMENT OF THE ACTUATOR (8) WITH THE DESIRED MOVEMENT PROFILE AND CONTROL THE MOVEMENT OF THE ACTUATOR (8) ALSO BASED ON COMPARING THE MOVEMENT OF THE ACTUATOR (8) WITH THE DESIGNATED MOVEMENT PROFILE. THE SWITCH (4) ALSO INCLUDES A DETECTOR (204) TO DETECT A WAVE FORM OF A VOLTAGE IN A LINE TO INTERRUPT AND PROVIDE INFORMATION RELATING TO THE FORM OF THE VOLTAGE WAVE TO THE CONTROL SYSTEM (12); CONTROLLING THE CONTROL SYSTEM (12) THE MOVEMENT OF THE ACTUATOR (8) ALSO BASED ON THE INFORMATION RELATING TO THE FORM OF THE VOLTAGE WAVE.

ES96915870T 1995-05-15 1996-05-15 METHOD AND CONTROL DEVICE FOR A SWITCH ACTUATOR. Expired - Lifetime ES2173282T5 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US44078395A 1995-05-15 1995-05-15
US440783 1995-05-15

Publications (2)

Publication Number Publication Date
ES2173282T3 true ES2173282T3 (en) 2002-10-16
ES2173282T5 ES2173282T5 (en) 2006-03-16

Family

ID=23750169

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96915870T Expired - Lifetime ES2173282T5 (en) 1995-05-15 1996-05-15 METHOD AND CONTROL DEVICE FOR A SWITCH ACTUATOR.

Country Status (12)

Country Link
EP (1) EP0830699B2 (en)
JP (2) JP3759751B2 (en)
KR (1) KR100438526B1 (en)
CN (1) CN1085398C (en)
BR (1) BR9608875A (en)
CA (1) CA2219282C (en)
DE (1) DE69619367T3 (en)
ES (1) ES2173282T5 (en)
HK (1) HK1015526A1 (en)
MX (1) MX9708859A (en)
TW (1) TW315477B (en)
WO (1) WO1996036982A1 (en)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6291911B1 (en) * 1995-05-15 2001-09-18 Cooper Industries, Inc. Electrical switchgear with synchronous control system and actuator
US6331687B1 (en) 1995-05-15 2001-12-18 Cooper Industries Inc. Control method and device for a switchgear actuator
US6538347B1 (en) * 1995-05-15 2003-03-25 Mcgraw-Edison Company Electrical switchgear with synchronous control system and actuator
FR2764431B1 (en) * 1997-06-04 1999-07-09 Gec Alsthom T & D Sa METHOD OF MONITORING AND DIAGNOSING THE OPERATION OF A HIGH VOLTAGE ELECTRICAL EQUIPMENT
DE19837009A1 (en) * 1998-08-14 2000-02-17 Abb Patent Gmbh Actuator device for movable contact piece of high-voltage power switch
EP1006537B1 (en) * 1998-12-03 2005-02-16 ABB Research Ltd. Device for controlling the opening/closing of electrical switchgear and related procedure
ATE358325T1 (en) * 1999-07-14 2007-04-15 Abb Research Ltd ACTUATOR AND CONTROL DEVICE FOR ELECTRICAL SWITCHGEAR
DE19948551C1 (en) * 1999-10-08 2001-07-05 Siemens Ag Method for equalizing total erosions of an electromagnetic switching device and the corresponding electromagnetic switching device
DE19963256C1 (en) * 1999-12-17 2001-05-23 Siemens Ag HV load switch has drive for second movable contact supplied with release signal when first driven contact reaches given position
ES2270561T3 (en) * 1999-12-23 2007-04-01 Abb Technology Ag DEVICE TO CONTROL THE OPENING / CLOSURE OPERATION OF AN ELECTRICAL SWITCH AND RELATED METHOD.
JP2002062944A (en) * 2000-08-18 2002-02-28 Alps Electric Co Ltd On-vehicle input device
US7151353B2 (en) 2000-09-18 2006-12-19 Abb Ab Switching device
US6753493B2 (en) * 2001-06-01 2004-06-22 Hubbell Incorporated Electrical circuit interrupting device
US7215228B2 (en) 2001-06-01 2007-05-08 Hubbell Incorporated Circuit interrupting device with a turnbuckle and weld break assembly
DE10313144B3 (en) 2003-03-17 2004-11-11 Siemens Ag Magnetic linear drive
FR2865572B1 (en) * 2004-01-23 2006-05-26 Alstom T & D Sa DEVICE FOR CONTROLLING A DEVICE FOR CUTTING ELECTRIC ENERGY
US8450630B2 (en) 2007-06-05 2013-05-28 Cooper Technologies Company Contact backing for a vacuum interrupter
US7999416B2 (en) * 2008-04-14 2011-08-16 Emergie H. T. International Inc. Module for controlling a switch in a high voltage electrical substation
CN102013355B (en) * 2010-08-05 2013-05-01 西安通大思源电器有限公司 Control method for prolonging service life of permanent magnet driven vacuum circuit breaker
CN101908435B (en) * 2010-08-05 2012-12-19 西安通大思源电器有限公司 Permanent magnet-operated vacuum circuit breaker
JP5606289B2 (en) * 2010-11-17 2014-10-15 株式会社東芝 Switch state detection device and method of mounting the state detection device
FR2971883B1 (en) * 2011-02-23 2013-02-22 Dauphinoise Const Elect Mec DEVICE AND METHOD FOR CONTROLLING A CONTROL SIGNAL FOR A DISCONNECT
US9837229B2 (en) 2011-06-24 2017-12-05 Tavrida Electric Holding Ag Method and apparatus for controlling circuit breaker operation
JP5579323B2 (en) 2011-07-07 2014-08-27 三菱電機株式会社 Electromagnetic operation device
EP2774241B1 (en) * 2011-11-03 2018-02-28 Hubbell Incorporated Control system for synchronous capacitor switch
CN103377860B (en) * 2012-04-20 2017-03-01 施耐德电器工业公司 Chopper and the method for monitoring breaker contact abrasion degree
JP2013229247A (en) * 2012-04-26 2013-11-07 Toshiba Corp Switchgear for electric power and operation mechanism thereof
ES2694124T3 (en) * 2012-06-11 2018-12-18 Abb Oy Electric current switching device
JP6053173B2 (en) * 2013-11-01 2016-12-27 株式会社日立製作所 Switchgear
US9934923B2 (en) * 2013-12-13 2018-04-03 Te Connectivity Corporation Relay with integral phase controlled switching
EP3270398B1 (en) * 2016-07-12 2021-04-07 ABB Schweiz AG Actuator for a medium voltage circuit breaker
CN106935438B (en) * 2017-03-08 2020-03-13 平高集团有限公司 Control method and control device for magnetic operating mechanism
CN107068484B (en) * 2017-06-05 2020-12-25 西安交通大学 High-voltage direct-current quick switch based on vegetable oil and breaking method thereof
JP6766019B2 (en) * 2017-08-29 2020-10-07 株式会社日立産機システム Vacuum switchgear and its abnormality monitoring method
EP3503150B1 (en) * 2017-12-21 2024-02-14 ABB Schweiz AG Method for operating the drive of a vacuum interrupter, and vacuum interrupter itself
GB2573139B (en) 2018-04-25 2021-06-23 Ge Aviat Systems Ltd Zero crossing contactor and method of operating
EP3832684B1 (en) * 2018-07-31 2024-02-14 Panasonic Intellectual Property Management Co., Ltd. Interrupter system
CN110491731B (en) * 2019-09-26 2024-09-17 河南宏泽电子科技有限公司 Driving and action signal feedback mechanism of alternating current contactor

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1640586A1 (en) † 1968-02-12 1970-12-17 Inst Prueffeld Fuer Elek Sche Method and device for synchronous control of an alternating current switch, in particular a high-voltage circuit breaker
GB1263375A (en) * 1968-06-10 1972-02-09 Tokyo Shibaura Electric Co A vacuum switching apparatus
US3792390A (en) * 1973-05-29 1974-02-19 Allis Chalmers Magnetic actuator device
US3917987A (en) * 1973-12-28 1975-11-04 Fujitsu Ltd Voice coil motor control system
US3946277A (en) * 1974-08-28 1976-03-23 Lange George M Zero current switching circuitry
US4027203A (en) * 1975-03-06 1977-05-31 Mcgraw-Edison Company Protective switch device for electrical distribution systems
USRE30134E (en) * 1975-05-22 1979-10-30 Esco Manufacturing Company Protection of polyphase equipment
DE2601799A1 (en) * 1976-01-20 1977-07-21 Licentia Gmbh Switch for electromagnetic contact actuation - has sensor in contactor electromagnetic range whose signals affect electronic switching element
US4247879A (en) * 1978-04-19 1981-01-27 Westinghouse Electric Corp. People protecting ground fault circuit breaker utilizing waveform characteristics
US4387280A (en) * 1978-05-29 1983-06-07 General Electric Company High speed hydraulically-actuated operating system for an electric circuit breaker
JPS5699931A (en) * 1979-12-15 1981-08-11 Meidensha Electric Mfg Co Ltd Vacuum switch
DE3110314A1 (en) † 1980-07-31 1982-04-01 LGZ Landis & Gyr Zug AG, 6301 Zug System and device for operating an electromagnet
DE3224165A1 (en) † 1982-06-29 1983-12-29 Brown, Boveri & Cie Ag, 6800 Mannheim Electromagnetic device for driving an encapsulated switching apparatus for medium-voltage or high-voltage switching and distribution installations
US4725799A (en) * 1986-09-30 1988-02-16 Westinghouse Electric Corp. Circuit breaker with remote control
DE3905822A1 (en) † 1989-02-22 1990-08-23 Siemens Ag METHOD FOR OPERATING A CIRCUIT BREAKER
DE4005532A1 (en) † 1990-02-19 1991-08-22 Siemens Ag Generator load switch for power plant - uses standard vacuum breaker switches controlled via zero transition relay
DE4105697C2 (en) † 1991-02-21 1995-11-02 Eaw Schaltgeraete Gmbh Synchronized switching vacuum contactor with single drive
US5255152A (en) * 1991-08-21 1993-10-19 Eaton Corporation Controller for fixed-time pull-in of a relay
DE4141564C2 (en) † 1991-12-17 1998-10-15 Abb Patent Gmbh Drive for switchgear
WO1993023760A1 (en) * 1992-05-12 1993-11-25 Square D Company System for monitoring circuit breaker operations and alerting need of preventative maintenance
US5361184A (en) * 1992-10-20 1994-11-01 Board Of Regents Of The University Of Washington Adaptive sequential controller

Also Published As

Publication number Publication date
MX9708859A (en) 1998-03-31
WO1996036982A1 (en) 1996-11-21
CA2219282A1 (en) 1996-11-21
DE69619367D1 (en) 2002-03-28
HK1015526A1 (en) 1999-10-15
DE69619367T2 (en) 2002-08-14
JP3759751B2 (en) 2006-03-29
KR100438526B1 (en) 2004-09-10
CN1085398C (en) 2002-05-22
KR19990014777A (en) 1999-02-25
EP0830699B2 (en) 2005-09-07
CA2219282C (en) 2006-08-15
DE69619367T3 (en) 2006-02-02
AU5752796A (en) 1996-11-29
ES2173282T5 (en) 2006-03-16
TW315477B (en) 1997-09-11
EP0830699B1 (en) 2002-02-20
EP0830699A4 (en) 1999-04-14
AU697096B2 (en) 1998-09-24
JPH11505366A (en) 1999-05-18
BR9608875A (en) 1999-07-06
JP2006054193A (en) 2006-02-23
CN1190487A (en) 1998-08-12
EP0830699A1 (en) 1998-03-25

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