WO2007045656A1 - Dispositif d'encliquetage pour un disjoncteur de puissance - Google Patents

Dispositif d'encliquetage pour un disjoncteur de puissance Download PDF

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Publication number
WO2007045656A1
WO2007045656A1 PCT/EP2006/067507 EP2006067507W WO2007045656A1 WO 2007045656 A1 WO2007045656 A1 WO 2007045656A1 EP 2006067507 W EP2006067507 W EP 2006067507W WO 2007045656 A1 WO2007045656 A1 WO 2007045656A1
Authority
WO
WIPO (PCT)
Prior art keywords
pawl
switching contact
switch shaft
latch
circuit breaker
Prior art date
Application number
PCT/EP2006/067507
Other languages
German (de)
English (en)
Inventor
Karsten Freundt
Kathrin Happel
Marcus Kampf
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2007045656A1 publication Critical patent/WO2007045656A1/fr

Links

Classifications

    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release mechanism
    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release mechanism
    • H01H2071/506—Latching devices between operating and release mechanism using balls or rollers in the latching device
    • 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
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
    • H01H71/323—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with rotatable armature

Definitions

  • the invention relates to a Verklinkungsvoriques for a circuit breaker having a fixed switching contact and a relative thereto by means of a drive device for switching on and off actuated movable switch contact and a power storage element for separating the movable switching contact of the fixed switching contact, with a mounted on a pivot axis pawl for locking the movable switching contact, wherein a magnetic release is provided with a trip coil for triggering the pawl.
  • DD 214 482 discloses a latching device for low-voltage circuit breaker with a latch mounted on an axis of rotation for latching a movable switch contact of the low-voltage circuit breaker, in which a magnetic release is provided with a trip coil for triggering the pawl.
  • DE 40 21 945 C2 discloses a switching device for interrupting fault currents and is preferably provided for transformer branches in medium voltage switchgear.
  • This device comprises a housing with a fixed and a movable switch contact and a switch-off spring as a force storage element which separates the movable switch contact from the fixed switch contact by a detachable by means of a magnetic release latch as a pawl arrangement upon the occurrence of a fault current.
  • the Magnetauslö ⁇ ser is in this device via a current transformer ge controls, which generates a current when a fault current occurs in a trip coil of the magnetic release, where ⁇ by a magnetic field in a ferromagnetic body is generated.
  • the latch arrangement comprises clamping bodies which prevent the movement of a pressure piece in a latching position. By the magnetic release, the clamping body are released, whereby the force acting on the pressure piece of the opening spring causes a movement thereof and the switching contacts of the scarf ⁇ ters separates.
  • Object of the present invention is to form a Verklinkungs- device of the type mentioned, which is characterized by a cost-effective design and a reliable mode of action.
  • this object is achieved in that the pawl at a first end has a circular segment-shaped contour, the center of which is spaced from the axis of rotation of the pawl of ⁇ acting on one of a switch shaft lever coupled to the force ⁇ memory element on the Klin ⁇ ke Force a counter torque is formed to the torques generated by a train ⁇ spring element and the magnetic release.
  • the pawl at a first end of a position pin and at a second end of the tension spring element and an associated armature on.
  • Such an arrangement advantageously causes a torque for a rotation of the pawl in the direction of Mag ⁇ netauslösers, being formed by the position pin in a simple manner a guide of the pawl along the Wegerwellenhe- lever in a latching or tripping operation.
  • a rotatably mounted roller is provided on the switch shaft lever.
  • a derar- term role is advantageous for the transmission of the Kraftspei ⁇ acting force storage element to the switch shaft lever on the handle.
  • the pawl is coupled to a release lever arrangement.
  • a tripping ⁇ lever assembly provides a simple way to realize me ⁇ chanical release of the pawl from the Verklinkungsposition.
  • the magnetic release on a permanent magnet system, and the trip coil is applied so that a magnetic field generated by it is opposite to the magnetic field of the permanent magnet system.
  • the trip coil is acted upon by a derived from a fault current in the network with the circuit breaker current.
  • the trip coil is preceded by a control means, suitable for initiating a control current for the trip coil testifies ER- at ei ⁇ nem voltage drop in power to the power switch.
  • Verklinkungs- device An embodiment of the Verklinkungs- device according to the invention will be explained with reference to the drawings and the following description with reference to the figures. Show it:
  • Figure 1 shows an embodiment of an inventive
  • Figure 2 is a detail view of the latching device of Figure 1 in a triggered position
  • Figure 4 shows a further detail view of the pawl of the inventions ⁇ inventive latching device
  • FIG. 5 shows a detailed view of FIG. 4.
  • Figure 1 shows a Verklinkungsvorraum 1 for a circuit breaker, the switch shaft 2 via a switch shaft lever 3 a figured not shown movable switching contact between an open and a closed Position with a likewise figuratively not shown fixed switch contact controls.
  • a roller 5 is rotatably mounted on a shaft 4 of the switch ⁇ shaft lever 3.
  • a pawl 6 is rotatably arranged by means of an axis 7 on a support element 8 of the circuit breaker.
  • the pawl 6 has a first end 9, which cooperates with the roller 5 of the switch shaft 2, and a second end 10, which cooperates with a fixing arrangement 11 on.
  • a first end of a tension spring element 13 is fastened by means of a fastening element 12.
  • the Switzerlandfe ⁇ derelement 13 is fixed at its second end to a fastening ⁇ transmission pin 14 of the carrier element 8.
  • the second end 10 of the pawl 6 also has a magnet armature 15.
  • a magnet system 16 is arranged, which comprises a permanent magnet 17 and a coil 18.
  • a position pin 19 for Füh ⁇ tion of the pawl 6 along an outer contour 20 of the switch shaft lever 3 of the switch shaft 2 is arranged.
  • the switch shaft 2 also has a fastening element 21, to which a figuratively also not shown Kraftspei ⁇ cherelement in the form of Auslogicergie Eatfederele- mentes for controlling the drive mechanism for the bewegba ⁇ ren switching contact of the circuit breaker is hinged.
  • the switch shaft 2 is controlled in such a circuit breaker on figuratively not shown drive means for moving the switch contacts.
  • the latching device 1 is shown in a first position in which the switching contacts of the circuit breaker are in an open position and a switching operation of the circuit breaker is prepared.
  • the tension spring element 13 attached to the second end 10 of the pawl 6 exerts a pulling force in the direction of the arrow A on the pawl 6 in this position of the pawl 6, as a result of which Pin 19 abuts the outer contour 20 of the switch shaft 2.
  • the armature 15 is spaced from the magnet system 16, wherein the rotation of the pawl 6 about the axis 7 by the voltage applied to the switch shaft lever 3 position pin 19 is prevented.
  • the switch shaft 2 is caused by the drive mechanism with the switch shaft lever 3 to rotate in the direction of the movement arrow B in a clockwise direction.
  • rotation of the position pin 19 slides along the Au ⁇ .kontur 20 of the switch shaft lever 3 until the Wegerwel ⁇ le 2 and the switch shaft lever 3 have triggered the switching operation of the switching contacts of the circuit breaker.
  • the switching shaft 2 with the switch shaft lever 3 moves in this switching operation in a clockwise direction, wherein finally the position pin 19 leaves the outer contour 20 and the free end of the pawl 6 rests against the roller 5 of the switch shaft lever 3 and by the force exerted by the tension spring 13 force to one Clockwise rotation about the axis 7 is caused.
  • the actuating element annealed at buildin ⁇ power storage element is tensioned.
  • FIG. 3 shows the latching device after an executed switching operation of the circuit breaker.
  • the switch shaft 2 with the switch shaft lever 3 are in a position in which on the disposed on the mounting member 21 drive mechanism, the switching contacts of the Leis ⁇ tung switch in a closed position.
  • the pawl 6 has been caused by the movement of the switch shaft 2 in Rich ⁇ tion of the movement arrow B to a rotation in the clockwise direction about the axis of rotation 7 by the force exerted by the tension spring 13 ⁇ force and is located in the figure 3 in a switch shaft. 2 with the switch shaft lever 3 latching position in which the armature 15 is in contact with the magnet system 16.
  • the first end 9 of the pawl 6 acts as a locking of the switch shaft lever 3 and the roller 5 on the switch shaft lever 3.
  • the figuratively not shown and arranged on the fastening element 21 force storage element which was ge ⁇ tensioned during the switching process, generated in this position, a restoring force the switch shaft lever 3 and the switch shaft 2, which is not sufficient to trigger the Verklinkungsmechanismus, since the armature 15 is in contact with the magnet system 16, so that the total force acting on the pawl 6 force by the tension spring element 13 and the magnet ⁇ system 16 are greater than the energy transmitted from the Auslogicergie Eat via the switch shaft lever 3 to the pawl.
  • Figure 4 shows a view of the pawl 6 with the force acting on the clinch ke 6 forces and Figure 5 is a detail view thereof.
  • a force Fi which of the
  • Tension spring element 13 is effected. Further, a force F 2 acts by the permanent magnet 17 of the magnet system 16 on the armature 15 of the latch 6.
  • the assigned to the forces torques at the pivot point of the axis of rotation 7 are hl about the respective gene lever arms as the distance from axis of rotation to Werner ⁇ ment point of attack and h 2 defined as the distance to the axis of rotation to magnetic ⁇ force F 2 attack point.
  • a force F 3 At the first end 9 of the pawl 6 acts a force F 3 , which is transmitted via the switch shaft 2 and the switch shaft lever 3 connected Auslogic- gie Grande to the end 9 of the pawl 6.
  • the contour of the pawl end 9 is designed such that the radial component F 3 of the force transmitted by the switch shaft lever 3 acts eccentrically with respect to the pivot point of the rotation axis 7, so that in the fulcrum by the force F 3rd Also, a torque is formed, which is directed opposite to the Drehmo ⁇ elements of tension spring element and permanent magnet system.
  • the reaction torque generated by the force F 3 in the pivot point of the rotation axis 7 is defined via the lever arm h 3 corresponding to the distance fulcrum and the point of action of the force F 3 .
  • the torques acting on the axis of rotation 7 are due to tensile spring element: Fl x hl by permanent magnet system: F2 x h2 by energy storage element: F3 x h3
  • Fi x hi + F 2 shall xh for the sum of these moments 2 - F 3 x h 3> 0 so that the resulting from the forces Fi and F2 Garmo ⁇ ment is greater than that of the force F 3 resulting overall gennavmoment the 6, and the pawl 6, the scarf ⁇ terwelle 2 and the switch shaft lever 3 verklinkt.
  • the moment balance in the pivot point of the pawl 6 is Fi x hi - F 3 xh 3 ⁇ 0
  • the counter-torque acting on the pawl 6 over the switch shaft lever 3 is greater than the torque generated by the Switzerlandfederele ⁇ element 13, so that the pawl 6 is caused to Dre ⁇ hung around its axis of rotation 7 in the counterclockwise direction, the first end of the 9 Pawl 6 slides along the roller 5 and finally releases them, so that the switching shaft 2 with the switch shaft lever 3 can also move in Ge ⁇ genclockwise by the arranged on the fastener 21 arranged Auslogicergie arrived torque in the tripped position of the circuit breaker.
  • the coil 18 of the magnet system 16 is connected to a control ⁇ and control unit of the circuit breaker, which in turn is connected to current or voltage sensors, which are arranged on the power switch.
  • current or voltage sensors which are arranged on the power switch.
  • Current sensors are provided, for example, for working current monitoring or for detecting an overcurrent occurring in the event of a fault.
  • Voltage sensors are provided to monitor the voltage applied to a busbar assembly. Thus, this voltage falls below a certain threshold, for example, or is detected by a current sensor, an overcurrent, there is a Stö ⁇ tion of the plant or before the circuit breaker.
  • a current is caused of the magnet system 16 in the coil 18 so that the magnetic holding force of the permanent magnet is raised to ⁇ 17 and the latching means is triggered.
  • a triggering of the circuit breaker and a separation of the switching contacts realized.

Abstract

La présente invention concerne un dispositif d'encliquetage (1) pour un disjoncteur de puissance qui présente un élément accumulateur conçu pour séparer le contact de commutation mobile du contact de commutation fixe. Ce dispositif comprend un cliquet (6) qui est monté sur un axe de rotation (7) et qui est conçu pour encliqueter le contact de commutation mobile. Un déclencheur magnétique (16, 17, 18) comprenant une bobine de déclenchement (18) est prévu pour déclencher le cliquet (6). A une première extrémité (9), le cliquet (6) présente un contour en forme de segment de cercle dont le milieu est éloigné de l'axe de rotation (7) du cliquet (6) de manière qu'un couple antagoniste aux couples produits par un élément à ressort de traction (13) et par le déclencheur magnétique (17) est formé par une force exercée par un levier d'arbre de commutateur (3) couplé à l'élément accumulateur sur le cliquet (6).
PCT/EP2006/067507 2005-10-18 2006-10-17 Dispositif d'encliquetage pour un disjoncteur de puissance WO2007045656A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005050693.3 2005-10-18
DE200510050693 DE102005050693A1 (de) 2005-10-18 2005-10-18 Verklinkungsvorrichtung für einen Leistungsschalter

Publications (1)

Publication Number Publication Date
WO2007045656A1 true WO2007045656A1 (fr) 2007-04-26

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ID=37441766

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/067507 WO2007045656A1 (fr) 2005-10-18 2006-10-17 Dispositif d'encliquetage pour un disjoncteur de puissance

Country Status (3)

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CN (1) CN101292321A (fr)
DE (1) DE102005050693A1 (fr)
WO (1) WO2007045656A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012203295A1 (de) * 2012-03-02 2013-09-05 Siemens Aktiengesellschaft Schaltschloss für einen Leistungsschalter
DE102012203294A1 (de) * 2012-03-02 2013-09-05 Siemens Aktiengesellschaft Schaltschloss eines Leistungsschalters
CN104364985B (zh) * 2012-06-18 2017-05-31 Abb瑞士股份有限公司 用于抽出式开关设备的抗震认证的永磁体moc锁件
CN105374614B (zh) * 2015-11-17 2018-06-26 平高集团有限公司 一种锁扣系统及断路器操动机构
CN107769142B (zh) * 2017-11-30 2023-09-08 国家电网公司 一种输电线路防风偏拉索的拉力释放装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2031458A (en) * 1934-10-30 1936-02-18 Gen Electric Operating mechanism
DE1221339B (de) * 1963-07-12 1966-07-21 Sachsenwerk Licht & Kraft Ag Kraftspeicherantrieb fuer elektrische Schaltgeraete
DE1588675A1 (de) * 1967-02-02 1970-08-13 Siemens Ag Schutzschalter
DD214482A1 (de) * 1983-03-22 1984-10-10 Inst Regelungstechnik Im Komb Schaltschloss-ausloeseeinrichtung fuer leistungsschalter mit elektronischem ausloeser
EP0300270A1 (fr) * 1987-07-22 1989-01-25 BBC Brown Boveri AG Dispositif de verrouillage pour disjoncteur rapide
FR2741473A1 (fr) * 1995-11-21 1997-05-23 Gec Alsthom T & D Sa Organe d'accrochage pour dispositif de commande mecanique de disjoncteur
DE4021945C2 (de) * 1990-07-10 1999-12-30 Alstom Sachsenwerk Gmbh Schaltvorrichtung zur Unterbrechung von Fehlerströmen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1372176A1 (fr) * 2002-06-10 2003-12-17 ABB Schweiz AG Actionneur électromagnétique pour un disjoncteur basse tension

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2031458A (en) * 1934-10-30 1936-02-18 Gen Electric Operating mechanism
DE1221339B (de) * 1963-07-12 1966-07-21 Sachsenwerk Licht & Kraft Ag Kraftspeicherantrieb fuer elektrische Schaltgeraete
DE1588675A1 (de) * 1967-02-02 1970-08-13 Siemens Ag Schutzschalter
DD214482A1 (de) * 1983-03-22 1984-10-10 Inst Regelungstechnik Im Komb Schaltschloss-ausloeseeinrichtung fuer leistungsschalter mit elektronischem ausloeser
EP0300270A1 (fr) * 1987-07-22 1989-01-25 BBC Brown Boveri AG Dispositif de verrouillage pour disjoncteur rapide
DE4021945C2 (de) * 1990-07-10 1999-12-30 Alstom Sachsenwerk Gmbh Schaltvorrichtung zur Unterbrechung von Fehlerströmen
FR2741473A1 (fr) * 1995-11-21 1997-05-23 Gec Alsthom T & D Sa Organe d'accrochage pour dispositif de commande mecanique de disjoncteur

Also Published As

Publication number Publication date
CN101292321A (zh) 2008-10-22
DE102005050693A1 (de) 2007-04-26

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