EP2462602B1 - Mécanisme d'entraînement à ressort accumulateur avec circuit temporisateur - Google Patents

Mécanisme d'entraînement à ressort accumulateur avec circuit temporisateur Download PDF

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Publication number
EP2462602B1
EP2462602B1 EP10745133.8A EP10745133A EP2462602B1 EP 2462602 B1 EP2462602 B1 EP 2462602B1 EP 10745133 A EP10745133 A EP 10745133A EP 2462602 B1 EP2462602 B1 EP 2462602B1
Authority
EP
European Patent Office
Prior art keywords
unit
flywheel
switching
timer unit
control unit
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.)
Active
Application number
EP10745133.8A
Other languages
German (de)
English (en)
Other versions
EP2462602A1 (fr
Inventor
Jörg KNOSPE
Henrik Lohrberg
Joachim Eggers
Franz-Josef Körber
Thomas Brenneis
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.)
ABB Technology AG
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ABB Technology AG
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Publication date
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Publication of EP2462602A1 publication Critical patent/EP2462602A1/fr
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Publication of EP2462602B1 publication Critical patent/EP2462602B1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/24—Power arrangements internal to the switch for operating the driving mechanism using pneumatic or hydraulic actuator
    • 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
    • H01H3/22—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
    • H01H3/3031—Means for locking the spring in a charged state
    • 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
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
    • H01H33/34—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator hydraulic
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/44—Automatic release mechanisms with or without manual release having means for introducing a predetermined time delay

Definitions

  • the invention relates to a device for the time-delayed actuation of at least one switching contact of a circuit breaker, in particular in a high-voltage switchgear, which hydromechanical spring drive has a hydraulically actuated CO (close-open) - delay circuit, which delays the triggering of the switching operation of the circuit breaker.
  • CO close-open
  • the advantage associated with the present invention is essentially to be seen in the constant time delay or acceleration in an extended temperature range.
  • the electric drive generating the angular momentum is preferably positively connected, for example via a 4 kt shaft, in engagement with the electromechanical actuator.
  • the scope of the Driving disc an actuating cam formed, which actuates a locking unit at a predetermined angle of rotation of the drive plate.
  • the drive plate is provided on its flat side with a pin-like pin, which serves for engagement in a recess of the time unit.
  • the already mentioned locking unit which can be actuated by the control unit or by the actuating cam arranged thereon, can be formed according to an advantageous embodiment of the invention by a pivotable pawl, which cooperates with both the control unit and with a provided on the time unit locking device.
  • the pawl serving as a locking unit is formed as a rectangular cuboid, along which one edge of the pivot axis is arranged, about which the pawl is pivotable, and its opposite is provided with a latching edge which acts on the one hand by the actuating cam of the control unit, that is opposite to the latching direction is raised, and on the other hand cooperates with the provided on the time unit locking device.
  • the time unit to a flywheel which is mounted coaxially with the drive plate and is provided with a local slot-like recess.
  • This slot-like recess accommodates the pin-like pin provided for engagement herein on the drive plate, the transmission of the rotational movement of the drive plate caused thereby ensuring the return of the flywheel.
  • the unit of time is acted upon by an energy unit, which is preferably designed as a spring device, which is in operative connection with the flywheel belonging to the time unit and these acted upon in a rotational direction.
  • the time unit belonging flywheel is provided at its periphery with a cam-like Anformung, which is provided for actuating the signal unit.
  • the signal unit has at least one switching element which is designed as a normally closed contact or as a make contact, which are coupled to their actuation with a switching rod which is acted upon by the time unit.
  • the signal unit is advantageously equipped with an interface which serves to control the circuit breaker.
  • each at least one switching element formed as NC or NO contact is formed by a spring contact, which occupies a switching position against the spring action when acted upon by the cam-like molding of the flywheel of the time unit.
  • the actuation of the switch contacts is here indirectly, namely provided by means of a switching rod, which depending on the nature of the relevant switching contact, namely depending on whether it is a normally closed contact or a make contact, the contacts presses or lifts or actuates or releases
  • each switching contact in the switching element may be formed as a normally closed contact or as a make contact
  • all switching contacts are designed as each loaded by a spring contacts, which springs act on the switching contact in the intended intended switching position, that is the normally closed contact in the open position and the Normally open contact in closed position.
  • the switching contacts are then each actuated or released.
  • the switching element of the signal unit has a plurality of contacts.
  • the switching element of the signal unit has a plurality of contacts.
  • only one switching rod for actuating the switching contacts is provided, wherein the control is then carried out via correspondingly formed on the shift rod switching arms.
  • FIGURE shows a schematic representation of the main components of the electro-mechanical actuator 10 according to the invention, which is actuated via a drive shaft not shown here in detail of an electric drive, also not shown, if necessary.
  • the contours or shapes of the main components shown schematically here may differ in the specific embodiment.
  • the already mentioned main components of the electro-mechanical actuator 10 are accordingly a control unit 12, a time unit 14, a power unit 16, a signal unit 18 and a locking unit 20.
  • the control unit 12 and the time unit 14 are arranged side by side on a common axis 13, wherein they are in principle independently rotatable.
  • the reference numerals 15.1 and 15.2 are the symbolically represented bearing points of the common axis.
  • the control unit 12 has a drive plate 22 which is provided on the side facing away from the viewer with a not shown here 4kt receptacle for a likewise not shown form compatible drive shaft of the electric drive, also not shown.
  • control unit 12 By means of this drive or via its drive shaft connected to the control unit 12, the control unit 12 or the drive plate 22 experiences an angular momentum which leads to its angular movement.
  • the drive plate 22 is also provided locally at its periphery with a Anformung that serves as an actuating cam 24 to act on the engaging plate 22 in engagement with Verrieglungsaku 20.
  • a pin-like pin 26 is disposed on the flat side facing the viewer of the drive plate 22 of the control unit 12, which in turn serves to act on the time unit 14 arranged coaxially in the finished assembled state next to the control unit 12.
  • the time unit 14 has a coaxial, that is on the common axis 13, rotatably arranged flywheel 28, which is provided on its axial end face with a slot-like recess 30.
  • this backdrop-like recess 30 engages the previously mentioned pin-like pin 26 and transmits at a suitable angular position of the flywheel 28 recorded by the drive plate 22 angular momentum, which acts on the flywheel 28 accordingly.
  • a pivot point 32 is arranged on the flywheel 28, to which the energy unit 16 formed by a spring device 33 is articulated, which acts on the flywheel 28 in the illustration shown in the clockwise direction.
  • the flywheel 28 is provided on its outer contour with a local Anformung, which serves as a switching cam 34 for actuating the signal unit 18, and with a latching device 36.
  • the latching device 36 is formed by a number of arranged on the circumference of the flywheel 28 or molded in its periphery notches 38, in which engages the locking unit 20 and thereby blocks a rotational movement of the flywheel 28.
  • the locking unit 20 is formed by a swivel bracket 40, which is pivotably mounted about a pivot axis 42 arranged along the outer axis facing away from the common axis of rotation 13. At the pivot axis 42 opposite outer edge of the swivel bracket 40 is provided with a locking edge 44, the contour of which is designed such that it coincides with the notches 38 in the flywheel 30.
  • the locking unit 20 or the swivel bracket 40 is also in operative contact with the integrally formed on the drive plate 22 of the control unit actuating cam 24, which leaves the swivel bracket 40 in the position shown in the single figure depending on the action of the electric drive not shown here by appropriate rotation its pivoting causes upward.
  • the switching rod 46 which is used to actuate a switching element 48 and the switching element 48 associated movable contact pieces 50, 52, is acted upon by the switching cam 34 axially, whereby the respective switching operation of the movable contact pieces 50, 52 and this is the relevant contact point 54, 56th close or open.
  • the contact points 54, 56 are, if necessary, designed as normally open contacts 54 or as normally closed contacts 56, wherein in both cases the contacts are provided with springs which act upon the respective contact in the closed or in the open position.
  • spring contacts are used in normally open contacts 54, wherein in the actuated state, that is, when acted upon by the shift rod 46, the circuit is closed.
  • the circuit is opened because the spring of the spring contact lifts the movable contact piece 54 from the contact point, because their lifting movement is no longer limited by the switching cam 34. In the switching state achieved in this way, the spring contact is not actuated.
  • the normally closed contact also uses spring contacts. In this case, when actuated by the switching cam 46 acted upon by the switching cam 46, the springs of the movable contact pieces 56 are biased and the circuit is open.
  • the electro-mechanical actuator 10 has the task of generating a mechanical time delay or acceleration.
  • the electro-mechanical actuator 10 is controlled by a mechanical tap, which forms an interface to the electric drive on the control unit 12. With the control unit 12, a drive plate 22 is provided.
  • a pawl (locking unit 20) is moved, whose task is to lock a flywheel 28 (time unit 14) on the latching 38 or unlock.
  • the driving pin 26 of the drive plate 22 has the function to move the adjacent flywheel 28 via an inner contour and thereby tension a spring element 32 of the power unit 16.
  • the flywheel 28 is driven by this spring element 32.
  • switching elements 48 On the outer contour of the flywheel 28 switching elements 48 (signal unit 18) are guided. These switching elements 48 are kept open or closed depending on the position of the flywheel 28 and thus transmit a signal to an interface to a circuit breaker. By unlocking the flywheel 28, the required time delay or acceleration is generated and triggered a signal via the switching elements 48.

Landscapes

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

Claims (11)

  1. Dispositif d'actionnement retardé d'au moins un contact de commutation d'un commutateur de puissance, notamment dans une installation de distribution à haute tension, comprenant un actionneur électromécanique (10) qui retarde le déclenchement de l'opération de commutation du commutateur de puissance, caractérisé en ce que l'actionneur électromécanique (10) comprend une unité de commande (12), une unité de temporisation (14) et une unité de signalisation (18) qui coopèrent entre elles mécaniquement, l'unité de commande (12) recevant comme grandeur de commande d'entrée une impulsion de rotation qui alimente l'unité de signalisation (18) en impliquant l'unité de temporisation (14), unité de signalisation qui, de son côté, commande le commutateur de puissance par le biais d'une interface et déclenche son opération de commutation, l'unité de temporisation (14) et l'unité de commande (12) qui font partie de l'actionneur électromécanique (10) étant guidées en rotation indépendamment l'une de l'autre sur un axe de rotation commun et l'unité de commande (12) possédant un disque d'entraînement (22) qui est chargé par un mécanisme d'entraînement électrique et qui est muni d'un contour externe (24) définissant le retard pour la transmission de l'actionnement retardé de manière correspondante de l'unité de temporisation.
  2. Dispositif selon la revendication 1, caractérisé en ce que l'unité de temporisation (14) possède un disque oscillant (28) qui est muni d'un creux (30) local semblable à une coulisse.
  3. Dispositif selon la revendication 2, caractérisé en ce que le disque d'entraînement (22) charge le disque oscillant (28) par l'intermédiaire d'une broche (26) disposée sur celui-ci, le disque oscillant étant supporté sur le même axe que le disque d'entraînement (22).
  4. Dispositif selon l'une des revendications 2 ou 3, caractérisé en ce que le disque oscillant (28) de l'unité de temporisation (14) est actionné par le disque d'entraînement (22) de l'unité de commande (12) en ce que la broche (26) disposée sur le disque d'entraînement (22) vient en prise dans le creux (30) semblable à une coulisse présent sur le disque oscillant (28) et charge ainsi le disque oscillant (28) .
  5. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il existe une unité de verrouillage (20) qui peut être actionnée par l'unité de commande (12) et qui coopère avec un dispositif d'enclenchement (36) présent sur l'unité de temporisation (14).
  6. Dispositif selon la revendication 5, caractérisé en ce que l'unité de verrouillage (20) est formée par un cran d'arrêt (40) pivotant qui coopère à la fois avec l'unité de commande (12) et avec le dispositif d'enclenchement (36) présent sur l'unité de temporisation (14).
  7. Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'unité de temporisation (14) est alimentée par une unité d'énergie (16).
  8. Dispositif selon la revendication 7, caractérisé en ce que l'unité d'énergie (16) est réalisée sous la forme d'un appareil à ressort (33) qui se trouve en liaison active avec le disque oscillant (28) appartenant à l'unité de temporisation (14) et charge celui-ci dans un sens de rotation.
  9. Dispositif selon l'une des revendications 2 à 8, caractérisé en ce que le disque oscillant (28) appartenant à l'unité de temporisation (14) est muni sur son pourtour d'un moulage (24) similaire à une came, lequel est destiné à l'actionnement de l'unité de signalisation (18).
  10. Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'unité de signalisation (18) possède au moins un élément de commutation (48), lequel est réalisé sous la forme d'un contact à ouverture (56) ou d'un contact à fermeture (54), lequel est couplé à une tige de commutation (46) pour son actionnement, laquelle est chargée par l'unité de temporisation (14), et en ce que l'unité de signalisation (18) est équipée d'une interface qui sert à commander le commutateur de puissance.
  11. Dispositif selon la revendication 10, caractérisé en ce que chaque au moins un élément de commutation (48) réalisé sous la forme d'un contact à ouverture (56) ou d'un contact à fermeture (54) est formé par un contact à ressort qui, lors de la charge par le moulage similaire à une came du disque oscillant (28) de l'unité de temporisation (14), adopte une position de commutation contre l'effet du ressort.
EP10745133.8A 2009-08-03 2010-07-26 Mécanisme d'entraînement à ressort accumulateur avec circuit temporisateur Active EP2462602B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009035889A DE102009035889B4 (de) 2009-08-03 2009-08-03 Federspeicherantrieb mit Verzögerungsschaltung
CN2009201699643U CN201616355U (zh) 2009-08-03 2009-09-14 液力机械弹簧储能传动装置
PCT/EP2010/004559 WO2011015296A1 (fr) 2009-08-03 2010-07-26 Mécanisme d'entraînement à ressort accumulateur avec circuit temporisateur

Publications (2)

Publication Number Publication Date
EP2462602A1 EP2462602A1 (fr) 2012-06-13
EP2462602B1 true EP2462602B1 (fr) 2015-10-07

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EP10745133.8A Active EP2462602B1 (fr) 2009-08-03 2010-07-26 Mécanisme d'entraînement à ressort accumulateur avec circuit temporisateur

Country Status (8)

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US (1) US9373455B2 (fr)
EP (1) EP2462602B1 (fr)
JP (1) JP5559327B2 (fr)
KR (1) KR20120038468A (fr)
CN (2) CN201616355U (fr)
DE (1) DE102009035889B4 (fr)
HK (1) HK1170598A1 (fr)
WO (1) WO2011015296A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009035889B4 (de) * 2009-08-03 2011-11-10 Abb Technology Ag Federspeicherantrieb mit Verzögerungsschaltung
KR101759601B1 (ko) 2015-12-28 2017-07-31 엘에스산전 주식회사 기중 차단기용 지연시간 발생장치
CN109509648B (zh) * 2017-09-15 2022-05-27 Abb瑞士股份有限公司 用于切换装置的减速机构和切换装置
CN110176369B (zh) * 2019-06-03 2021-08-27 福建奥迈自动化科技有限公司 一种断电自动断路节能开关
CN113113270B (zh) * 2021-04-14 2022-09-27 西安西电开关电气有限公司 一种合闸保持分闸脱扣系统

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Publication number Priority date Publication date Assignee Title
US2820860A (en) * 1954-01-05 1958-01-21 Eagle Signal Corp Delayed circuit closers
US4180788A (en) * 1978-07-03 1979-12-25 General Electric Company Vacuum circuit breaker with delayed trip operation
US4297554A (en) * 1980-01-24 1981-10-27 G & W Electric Specialty Company Time delay switch mechanism
US4697163A (en) * 1986-03-27 1987-09-29 Westinghouse Electric Corp. Circuit breaker with impact trip delay
DE4340533C2 (de) * 1993-11-29 1998-02-19 Abb Patent Gmbh Hydraulikeinrichtung zur Betätigung eines Antriebskolbens für ein bewegliches Bauteil
DE102006041250A1 (de) 2006-09-02 2008-03-06 Abb Technology Ag Antriebseinheit
US7598468B2 (en) 2007-06-01 2009-10-06 Eaton Corporation Electrical switching apparatus, and stored energy assembly and time delay mechanism therefor
KR100876412B1 (ko) * 2007-07-12 2008-12-31 엘에스산전 주식회사 차단기의 지연시간 출력장치
DE102008061238B4 (de) * 2008-12-09 2010-10-28 Abb Technology Ag Vorrichtung für einen hydraulischen Antrieb für eine elektrische Schaltanlage
JP4908536B2 (ja) * 2009-03-16 2012-04-04 エルエス産電株式会社 配線用遮断器用瞬時トリップメカニズム
DE102009035889B4 (de) * 2009-08-03 2011-11-10 Abb Technology Ag Federspeicherantrieb mit Verzögerungsschaltung

Also Published As

Publication number Publication date
CN201616355U (zh) 2010-10-27
DE102009035889A1 (de) 2011-02-17
JP5559327B2 (ja) 2014-07-23
WO2011015296A1 (fr) 2011-02-10
CN102483999B (zh) 2015-09-30
JP2013501325A (ja) 2013-01-10
US9373455B2 (en) 2016-06-21
DE102009035889B4 (de) 2011-11-10
KR20120038468A (ko) 2012-04-23
EP2462602A1 (fr) 2012-06-13
US20120193201A1 (en) 2012-08-02
CN102483999A (zh) 2012-05-30
HK1170598A1 (en) 2013-03-01

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