EP2923367B1 - Federsteuerungsvorrichtung für einen schutzschalter - Google Patents

Federsteuerungsvorrichtung für einen schutzschalter Download PDF

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Publication number
EP2923367B1
EP2923367B1 EP13792691.1A EP13792691A EP2923367B1 EP 2923367 B1 EP2923367 B1 EP 2923367B1 EP 13792691 A EP13792691 A EP 13792691A EP 2923367 B1 EP2923367 B1 EP 2923367B1
Authority
EP
European Patent Office
Prior art keywords
spring
control device
circuit breaker
drive shaft
type
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.)
Not-in-force
Application number
EP13792691.1A
Other languages
English (en)
French (fr)
Other versions
EP2923367A1 (de
Inventor
Heinz Aeschbach
Simon ARDYNA
Jean-Pierre Dupraz
David Berard
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.)
GE Vernova GmbH
Original Assignee
General Electric Technology GmbH
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 General Electric Technology GmbH filed Critical General Electric Technology GmbH
Publication of EP2923367A1 publication Critical patent/EP2923367A1/de
Application granted granted Critical
Publication of EP2923367B1 publication Critical patent/EP2923367B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
    • 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
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • 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
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3005—Charging means
    • H01H3/3015—Charging means using cam devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/38—Driving mechanisms, i.e. for transmitting driving force to the contacts using spring or other flexible shaft coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/18—Energy stored by deformation of elastic members by flexing of blade springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • 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
    • H01H9/02—Bases, casings, or covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2235/00—Springs
    • H01H2235/018—Spring seat

Definitions

  • the invention relates to the field of medium and high voltage electrical distribution networks, and in particular spring control devices for circuit breakers.
  • circuit breakers used in the substations are coupled with control devices. These provide energy through a couple, to close and open the movable contacts of the circuit breaker.
  • control devices can be hydraulic, pneumatic or spring type.
  • the European patent document EP-0 658 909 and the French patent document FR-2,840,726 show mechanical controls to spring for medium or high voltage circuit breakers.
  • the spring is connected to the drive shaft, by means of tension devices, such as a chain.
  • tension devices such as a chain
  • a chain is attached to the drive shaft via a lever system.
  • a pulley is used to change the chain of direction.
  • One end of the spring is mounted on the housing of the device. The other end of the spring can therefore be compressed by the chain. It uses a toothed wheel rotated by the spring from a first angular position to a second angular position and a pinion cooperating with the toothed wheel.
  • the type of spring used in such a mechanism is of the helical type. However, this type of spring is relatively heavy and expensive.
  • the Belgian patent BE 662 849 discloses an ⁇ -shaped spring used in actuating the movable contacts of an electrical switching device.
  • the main object of the invention is a spring-loaded control device for a circuit breaker operating in a high or medium voltage network, the device comprising a drive shaft to allow to actuate very quickly at least one contact. mobile circuit breaker.
  • the spring is a curved composite spring, C-shaped or ⁇ .
  • control device has a frame consisting of two parallel flanges between which is fixed a fixed rod, and fixed to a first end of the spring, the second end of the spring being always placed between the two flanges constituting the frame of the device.
  • Figure 1 a spring 1 C-shaped or omega ( ⁇ ). It is specified that it is, according to the invention, spring type composite.
  • a composite material that can be used to form the spring is a material comprising a fiberglass matrix and epoxy resin.
  • Each of these ends 2 and 3 has a hook shape.
  • the spring 1 is in the form of a curved blade.
  • the first end 2 is fixed to a fixed rod 5, fixed relative to the frame of the control device.
  • the second end 3 hook-shaped is movable in that its position can vary by relative to the fixed rod 5.
  • the first end 2 of the spring 1 remains in a fixed position.
  • the second end 3 of the spring 1, which is also hook-shaped, is fixed around a movable rod 4 which is movable in position.
  • this movable rod 4 is placed at the end of a lever system 7, that is to say placed between the two distal ends of two levers 7A and 7B which are parallel.
  • the other ends of these two levers 7A and 7B are attached to a drive shaft 6, which is notched or grooved, so as to be integral in rotation with the latter.
  • Spring 1 is loaded in compression.
  • the second end 3 of the spring 1 has a first determined position relative to the first end 2 of the spring 1.
  • the spring 1 is suddenly discharged, that is to say, it relaxes, the second end 3 moves a little time away from the first end 2 of the spring 1.
  • the radius of the curvature of the spring 1 increases slightly.
  • the central portion 8 of the spring 1 is close to a plane defined by the axes of the two fixed and movable rods 5 and 4.
  • the spring 1 is inserted in a spring drive device, used to operate the high voltage circuit breakers.
  • a spring drive device used to operate the high voltage circuit breakers.
  • EP-0 658 909 which shows such a type of control device.
  • the spring 1 is integrated between the two flanges 10A and 10B of the frame of the device, which are placed in parallel.
  • the spring 1 is integrated in part inside the control device.
  • the lever system 7 protrudes with respect to the two flanges 10A and 10B, as does the movable rod 4, which is fixed to the second end 3 of the spring 1.
  • the position of the lever device 7 therefore depends on the fact that the spring 1 is charged or not.
  • the spring 1 is therefore used for opening operations of the circuit breaker, requiring a very high speed of intervention.
  • the closing spring is generally a conventional helical spring.
  • the invention of a composite spring shaped curved C or ⁇ allows a reduction of 10% of the mass of the assembly.
  • the resonance frequency of the spring is increased. Indeed, considering the following formula: f ⁇ 1 m where f is the resonant frequency of the spring and m the mass of the spring. This may be important in the design of the spring loaded controller.
  • This type of spring has excellent creep resistance over time.
  • control device has been designed to equip gas-insulated circuit breakers (GIS), but it can also equip air-insulated circuit breakers, those with oil bath or those with low volume of oil.
  • GIS gas-insulated circuit breakers

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Springs (AREA)

Claims (2)

  1. Federsteuerungsvorrichtung für einen Schutzschalter in einem elektrischen Hoch- oder Mittelspannungsnetz, wobei die Vorrichtung eine Antriebswelle (6) umfasst, die die sehr schnelle Betätigung wenigstens eines beweglichen Kontakts des Schutzschalters erlauben soll,
    dadurch gekennzeichnet, dass die Feder (1) eine Verbundfeder vom "krummen" Typ in Form eines C oder eines Ω ist, und folgendes aufweist:
    - ein erstes Ende (2), das eine Hakenform hat und an einem Rahmen (10A, 10B) der Steuerungsvorrichtung befestigt ist; und
    - ein zweites Ende (3), das eine Hakenform hat, das beweglich ist und das schwenkbar an einem distalen Ende eines Hebelsystems (7) befestigt ist, wobei das distale Ende des Hebelsystems an der Antriebswelle (6) mit seinem anderen Ende drehbefestigt ist.
  2. Steuerungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Rahmen mit zwei parallelen Flanschen (10A, 10B) gebildet ist, zwischen denen eine feste Stange (5) befestigt ist, die an dem ersten Ende (2) der Feder (1) befestigt ist, wobei das zweite Ende (3) der Feder (1) zwischen den zwei Flanschen (10A, 10B) beweglich ist.
EP13792691.1A 2012-11-21 2013-11-20 Federsteuerungsvorrichtung für einen schutzschalter Not-in-force EP2923367B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1261083A FR2998413B1 (fr) 2012-11-21 2012-11-21 Dispositif de commande a ressort pour un disjoncteur
PCT/EP2013/074274 WO2014079877A1 (fr) 2012-11-21 2013-11-20 Dispositif de commande a ressort pour un disjoncteur

Publications (2)

Publication Number Publication Date
EP2923367A1 EP2923367A1 (de) 2015-09-30
EP2923367B1 true EP2923367B1 (de) 2016-08-24

Family

ID=47714292

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13792691.1A Not-in-force EP2923367B1 (de) 2012-11-21 2013-11-20 Federsteuerungsvorrichtung für einen schutzschalter

Country Status (6)

Country Link
US (1) US9589744B2 (de)
EP (1) EP2923367B1 (de)
JP (1) JP6209221B2 (de)
CN (1) CN104798159B (de)
FR (1) FR2998413B1 (de)
WO (1) WO2014079877A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3009757B1 (fr) 2013-08-13 2015-09-04 Alstom Technology Ltd Procede et dispositif pour la regulation de l'alimentation d'un convertisseur photovoltaique
EP2978005B1 (de) 2014-07-25 2017-05-17 General Electric Technology GmbH Stromunterbrechungsvorrichtung auf einer Übertragungsleitung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1097429A (en) * 1964-04-24 1968-01-03 Svenska Elfab Ab Selfa A snap action mechanism especially for electrical switching devices
US4123638A (en) * 1976-06-22 1978-10-31 Motomu Miyamoto High speed switching device for switch and breaker
FR2458886A2 (fr) 1978-10-26 1981-01-02 Mayer Ferdy Relais sensible a haute stabilite de seuil
JPS57170427A (en) * 1981-04-13 1982-10-20 Matsushita Electric Works Ltd Electromagnetic contactor
JPS60162352U (ja) * 1984-04-04 1985-10-28 神鋼電機株式会社 電磁接触器の復帰装置
US5428329A (en) * 1994-05-24 1995-06-27 Eaton Corporation Springclip means for a latchable operating mechanism on a circuit breaker
JPH0877860A (ja) * 1994-09-02 1996-03-22 Toshiba Corp 開閉機器用電動ばね操作機構とコイルばねの製造方法
DE60000091T2 (de) * 2000-10-19 2002-11-07 Hager-Electro S.A., Obernai Schnelleinschaltvorrichtung für Modulschutzschalter
KR100505438B1 (ko) 2001-11-29 2005-07-29 마츠시다 덴코 가부시키가이샤 전자(電磁) 개폐 장치
CN100561630C (zh) * 2007-11-27 2009-11-18 Tcl低压电器(无锡)有限公司 小型断路器的快速闭合机构
DE102012201260A1 (de) * 2012-01-30 2013-08-01 Siemens Aktiengesellschaft Schalteinheit für ein elektrisches Schaltgerät sowie elektrisches Schaltgerät

Also Published As

Publication number Publication date
CN104798159B (zh) 2017-07-04
WO2014079877A1 (fr) 2014-05-30
JP6209221B2 (ja) 2017-10-04
CN104798159A (zh) 2015-07-22
US9589744B2 (en) 2017-03-07
FR2998413B1 (fr) 2016-02-05
JP2015535644A (ja) 2015-12-14
FR2998413A1 (fr) 2014-05-23
US20150348718A1 (en) 2015-12-03
EP2923367A1 (de) 2015-09-30

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