WO2004086435A1 - Dispositif d'entrainement de commutateur pour appareil de commutation electrique - Google Patents

Dispositif d'entrainement de commutateur pour appareil de commutation electrique Download PDF

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Publication number
WO2004086435A1
WO2004086435A1 PCT/DE2004/000488 DE2004000488W WO2004086435A1 WO 2004086435 A1 WO2004086435 A1 WO 2004086435A1 DE 2004000488 W DE2004000488 W DE 2004000488W WO 2004086435 A1 WO2004086435 A1 WO 2004086435A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
drive device
switch drive
movement
switch
Prior art date
Application number
PCT/DE2004/000488
Other languages
German (de)
English (en)
Inventor
Holger Bendisch
Lutz Kriegisch
Gunnar Lutzke
Friedrich Löbner
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 WO2004086435A1 publication Critical patent/WO2004086435A1/fr

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
    • 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
    • H01H2003/3078—Power arrangements internal to the switch for operating the driving mechanism using spring motor using an inertia element, e.g. a flywheel, to controll the energy released by the spring

Definitions

  • the invention relates to a switch drive device for an electrical switching device, in particular for a circuit breaker, with a shaft for transmitting a drive movement.
  • Such a switch drive device is described for example in European patent application EP 0 320 614 AI.
  • the known switch drive device is a spring-loaded drive which has a plurality of shafts for transmitting a drive movement.
  • a storage spring is provided for storing energy for a switching movement of a circuit breaker. In a tensioned state of the storage spring, the energy required to move the contact pieces of a circuit breaker is provided by the storage spring.
  • the body acting as a flywheel absorbs energy at the start of a wave movement.
  • the inertia of the wave is increased by the body.
  • the body At the end of the movement of the shaft, the body returns the stored energy via the shaft to the moving parts of the switch drive device. This enables a more continuous movement of the shaft. Sudden driving forces on the shaft are dampened by the presence of the body.
  • the body itself is not included in the kinematic chain of the switch drive device. Removing or changing the body has no effect on the kinematics of the switch drive device.
  • the dynamics of the switch drive device are influenced by the body.
  • the body is rigidly coupled to the shaft.
  • the rigid coupling ensures that regardless of the type of movement of the shaft and the direction of rotation of the
  • a gear can be used to translate the movements of the shaft and the body. It is thus possible, with a suitable transmission ratio, to move the body at an increased angular velocity and thus to bring about an increased effect on the shaft with a reduced body mass.
  • a further advantageous embodiment can provide that the body can be uncoupled via the transmission depending on the movement of the shaft.
  • the gear mechanism By means of the gear mechanism it can be caused, for example, that the body is only moved in one direction of rotation of the shaft and that in the other direction of rotation of the shaft a freewheel prevents the body from being driven.
  • the effects of the body can only be used in specific movement processes.
  • so-called dead time elements are integrated in the transmission and the body is only moved during certain movement sections of the shaft.
  • Such a dead time element can be generated, for example, by means of a dog clutch with a limited freewheel. This is of interest if, at the beginning of the movement of the shaft, a breakaway moment has to be overcome and the effect of the body is only desired after the movement of the shaft has started.
  • the switch drive device has a storage spring.
  • storage springs have the characteristic of providing decreasing amounts of energy as the spring tension decreases.
  • the body By arranging the body on a tension shaft, the effect of the body is introduced directly on the element of the switch drive device on which the storage spring acts. This makes it possible to design the elements lying behind the tensioning shaft in the direction of energy flow in a known manner.
  • the inertia of the body can start directly at the origin of the movement and act directly on the spring via the tensioning shaft. This avoids unnecessary transmission elements.
  • flywheel mass of the body is arranged essentially in a ring shape or that the body is disk-shaped.
  • Annular or disc-shaped bodies are well suited to be attached to a rotatable shaft. Such bodies do not introduce any additional imbalances into the switch drive device and combine a high mass in a compact space in order to couple the desired moments of inertia into the switch drive device via the shaft. Furthermore, it can advantageously be provided that a
  • High-voltage circuit breaker with a switch drive device which has a shaft for transmitting a drive movement, is equipped with a body acting exclusively on the shaft as a flywheel.
  • the rotational energy transmitted to the body during a drive movement can be used further, for example to tension contact pressure springs for the contact system of the circuit breaker or to tension a further storage spring, for example an opening spring.
  • Figure 2 shows a switch drive device with a body in a second embodiment.
  • FIG. 1 shows a switch drive device 1 for an electrical circuit breaker 2, as is used, for example, in the high-voltage range. Movable contact pieces of the Circuit breaker 2 moves, thus causing circuit breaker 2 to be switched on and off.
  • the switch drive device 1 has a support housing 3.
  • a tension shaft 4 is rotatably mounted on the support housing 3.
  • the tension shaft 4 can be driven via a further shaft 5 and a corresponding gear chain 6.
  • the gear chain 6 is driven, for example, by means of an electric motor 7. Alternatively, the gear chain 6 can also be driven by a tool which can be plugged onto the other shaft 5 on the end face.
  • the tensioning shaft 4 has a crank 8.
  • a storage spring 9 is suspended between the crank 8 and the support housing 3.
  • a drive lever 10 is also arranged on the tensioning shaft 4. The drive lever 10 serves to transmit the drive movement to the movable contact pieces of the circuit breaker 2.
  • the drive lever 10 is only shown schematically in the figures and pivots out of the plane of the drawing. To control the switching movement, additional elements such as latches, cams, freewheels, etc., as known from EP 0 320 614 AI, may be used.
  • a body 11 is also arranged on the tension shaft 4.
  • the body 11 is disc-shaped and arranged coaxially to the longitudinal axis of the tensioning shaft 4 and rigidly connected to it.
  • the body 11 is disc-shaped and serves as a flywheel. Due to the rigid coupling of the tensioning shaft 4 and the body 11, the body 11 acts on the tensioning shaft 4 with an moment of inertia both when the storage spring 9 is tensioned and when the storage spring 9 is relaxed.
  • FIG. 2 shows a switch drive device 1 which essentially corresponds to the switch drive device shown in FIG. drive device 1 corresponds. Only the coupling of the

Landscapes

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

Abstract

L'invention concerne un dispositif d'entraînement de commutateur (1) pour appareil de commutation électrique, en particulier pour commutateur de puissance (2). Ce dispositif d'entraînement de commutateur (1) présente un arbre (4). Un accumulateur d'énergie fournit l'énergie nécessaire à la génération d'un déplacement. Un corps (11) servant exclusivement de masse d'inertie est accouplé à l'arbre (4).
PCT/DE2004/000488 2003-03-25 2004-03-05 Dispositif d'entrainement de commutateur pour appareil de commutation electrique WO2004086435A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10314142.1 2003-03-25
DE2003114142 DE10314142A1 (de) 2003-03-25 2003-03-25 Schalterantriebseinrichtung für ein elektrisches Schaltgerät

Publications (1)

Publication Number Publication Date
WO2004086435A1 true WO2004086435A1 (fr) 2004-10-07

Family

ID=32980788

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2004/000488 WO2004086435A1 (fr) 2003-03-25 2004-03-05 Dispositif d'entrainement de commutateur pour appareil de commutation electrique

Country Status (2)

Country Link
DE (1) DE10314142A1 (fr)
WO (1) WO2004086435A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014213509A1 (de) * 2014-07-11 2016-01-14 Siemens Aktiengesellschaft Auslöseeinrichtung für ein elektrisches Schaltgerät

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH298269A (de) * 1951-07-05 1954-04-30 Smit & Willem & Co Nv Elektrischer Schalter.
DE1064598B (de) * 1958-01-10 1959-09-03 Sprecher & Schuh Ag Einschaltvorrichtung mit Federkraftspeicher fuer elektrische Leistungsschalter
FR2180546A1 (fr) * 1972-04-20 1973-11-30 Alsthom Cgee
US3992600A (en) * 1974-08-28 1976-11-16 Sprecher & Schuh Ag Electrical switch

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2034111T3 (es) * 1987-12-14 1993-04-01 Sprecher Energie Ag Acumulador de fuerza elastica para un interruptor de alta tension.
DE19602912A1 (de) * 1996-01-27 1997-07-31 Abb Patent Gmbh Antrieb für das bewegliche Kontaktstück eines elektrischen Schalters, insbesondere eines Vakuumschalters
DE19735924A1 (de) * 1997-08-08 1999-02-11 Siemens Ag Schalterantrieb, insbesondere für Hochspannungs-Leistungsschalter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH298269A (de) * 1951-07-05 1954-04-30 Smit & Willem & Co Nv Elektrischer Schalter.
DE1064598B (de) * 1958-01-10 1959-09-03 Sprecher & Schuh Ag Einschaltvorrichtung mit Federkraftspeicher fuer elektrische Leistungsschalter
FR2180546A1 (fr) * 1972-04-20 1973-11-30 Alsthom Cgee
US3992600A (en) * 1974-08-28 1976-11-16 Sprecher & Schuh Ag Electrical switch

Also Published As

Publication number Publication date
DE10314142A1 (de) 2004-10-14

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