EP3753035B1 - Cinématique de commutation pour tubes interrupteurs à vide et procédé d'adaptation d'un couple de maintien d'ouverture transmis sur un arbre de commutateur - Google Patents

Cinématique de commutation pour tubes interrupteurs à vide et procédé d'adaptation d'un couple de maintien d'ouverture transmis sur un arbre de commutateur Download PDF

Info

Publication number
EP3753035B1
EP3753035B1 EP18716988.3A EP18716988A EP3753035B1 EP 3753035 B1 EP3753035 B1 EP 3753035B1 EP 18716988 A EP18716988 A EP 18716988A EP 3753035 B1 EP3753035 B1 EP 3753035B1
Authority
EP
European Patent Office
Prior art keywords
switching
keep
open
switch shaft
switch
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
EP18716988.3A
Other languages
German (de)
English (en)
Other versions
EP3753035A1 (fr
Inventor
Dhananjay AWATE
Thomas Knabe
Philipp Last
Philipp Meyer
Namitkumar SHELAR
Saurabh Shrivastava
Claudia Sigusch
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.)
Siemens AG
Original Assignee
Siemens AG
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 AG filed Critical Siemens AG
Publication of EP3753035A1 publication Critical patent/EP3753035A1/fr
Application granted granted Critical
Publication of EP3753035B1 publication Critical patent/EP3753035B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H01H33/666—Operating arrangements
    • 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
    • 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
    • H01H33/40—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
    • 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
    • H01H2033/6667—Details concerning lever type driving rod arrangements

Definitions

  • the invention relates to a switching kinematics for vacuum interrupters of a switch, in particular for low-voltage, medium-voltage and high-voltage systems, and a method for adjusting a holding open torque transmitted to a switch shaft in a switching kinematics, in particular for low-voltage, medium-voltage and high-voltage systems.
  • circuit breakers that use vacuum interrupters are known.
  • the switching contacts of all phases usually three, are arranged in a vacuum tube.
  • the atmospheric pressure surrounding the tube permanently exerts a closing force F VI on the tube, so that the switch closes automatically without any further precautions.
  • a compensating counterforce must be applied that is greater than the closing forces F VI of all tubes in the switch generated by the atmospheric pressure.
  • a single spring the so-called hold-open spring, is used in a switching device. This one hold-open spring causes a moment, in particular a torque, T OHF on the switch shaft of the respective switching device.
  • this switch shaft simultaneously serves all poles, i.e. phases and vacuum interrupters.
  • the opening torque on the switch shaft must be greater than or at least equal to the torque on the switch shaft, which is caused by the Closing forces F VI of all vacuum interrupters are generated so that the poles, usually three, of the switching device are kept open.
  • the switch shaft is rotated from the off position by an angle ⁇ ON .
  • the hold-open spring acting on the switching shaft is further tensioned.
  • An amount of energy E OHF is therefore stored in the hold-open spring during the switch-on movement.
  • the drive of the vacuum switch must therefore also provide the energy E OHF in addition to other energies (e.g. the energy for compressing the contact pressure springs).
  • the DE2717958A1 describes a drive device for an electrical switching device with switching kinematics.
  • the JP H06 231656A shows switching kinematics for switching contacts.
  • the object of the invention is now to eliminate the known disadvantages from the prior art.
  • An exemplary embodiment relates to a switching kinematics for vacuum interrupters of a switch, in particular for low-voltage, medium-voltage and high-voltage systems, with a drive, a switching spring, a first switching gate, which is rotatably arranged about a first axis, a first switching lever on which the first A switching gate acts, a switch shaft which is firmly connected to the first switching lever and a hold-open spring which acts on the switch shaft, the vacuum interrupter having at least two switching contacts, of which at least one is a moving contact, and the vacuum interrupter between a first position in which the switching contacts of the vacuum interrupter are separated from one another, and can be transferred to a second position in which the switching contacts are in contact with one another, the hold-open spring being connected to the switch shaft via a crank element and a transmission member, and the hold-open spring via the transmission member and the switch shaft acts on the first shift lever and so does not attack the shift lever directly.
  • the hold-open spring is attached to the crank element, and the crank element is movably arranged between the transmission member and a fastening element.
  • the crank element also has a movably arranged deflection element, the transmission member is movably connected to a translation crank, the translation crank is in turn movably connected to the fastening element, and the hold-open spring acts on the translation crank via the deflection element and thus transmits the hold-open torque T OHF to the transmission member.
  • Such switching kinematics enables the switching kinematics to be easily and cost-effectively adapted to the different requirements of vacuum interrupters and the drive.
  • the switching kinematics here refers to the mechanical components of the switch, which transmit the switching movement to the vacuum interrupter and the drive of the switch, i.e. also for tensioning the springs.
  • the transmission member is designed in such a way that the transmission member's hold-open torque T OHF of the hold-open spring on the switch shaft decreases the further the switching contacts of the vacuum interrupter approach the second position.
  • the hold-open torque T OHF of the hold-open spring which acts on the switch shaft, is greater than zero in the first position of the vacuum interrupter and is not less than zero in the second position and more preferably is less in the second position than in the first Position.
  • the hold-open torque T OHF of the hold-open spring which acts on the switch shaft, is greater than zero in the first position of the vacuum interrupter and is less than zero in the second position.
  • This arrangement requires a switch shaft lever to pass through an extended position, i.e. the point of application at which the transmission member acts on the switch shaft via a lever, and transmission member, which is possible in particular, but not necessarily, by exploiting dynamic effects such as inertia.
  • a change in the shape of the transmission crank causes a change in the hold-open torque transmitted via the transmission member to the switch shaft.
  • One exemplary embodiment relates to a method for adapting a hold-open torque T OHF transmitted to a switch shaft, wherein in a switching kinematics according to one of the above embodiments, the transmission element and/or the transmission crank are adapted to the requirements of the respective switch
  • the Figure 1 shows schematically a switching kinematics from the prior art for a switching device with vacuum interrupters 5.
  • the drive for tensioning the switching spring 20 is not shown.
  • the switching spring 20 acts on a first switching gate 30, which is rotatably mounted about a first axis 40.
  • This first shift gate 30 acts on a first shift lever 50 via a roller 60.
  • the first shift lever 50 is rotatably mounted on a switch shaft 70.
  • the hold-open spring 90 acts on the switching shaft 70 via the first switching lever 50.
  • the branch with the contact pressure spring 80 is arranged, which in turn is connected to the switching rocker 105 at point 100.
  • the rocker switch 105 is rotatably mounted on the axis 110. At point 120 of the rocker switch 105, the movement in the link 130 is redirected to the moving contact of the vacuum interrupter 5.
  • Arrow 6 shows the direction of the closing force F VI .
  • the arrow 91 shows the direction of the torque T OHF of the hold-open spring.
  • the arrow 92 indicates the direction in which the hold-open spring 90 acts on the first shift lever 50.
  • the Figure 2 shows an example of a switch 1 for three phases with three vacuum interrupters 5.
  • the Figure 3 shows schematically a switching gate 10.
  • the hold-open spring 190 is attached to one side 195 in the switch 1.
  • the other side of the hold-open spring 190 acts on the crank element 490 and via this on a transmission member 480, which is connected to the switching shaft 470.
  • the crank element 490 is attached to the switch 1 with a fastening element 400.
  • the connection to the switch shaft 470 can be made via a lever element, not shown, which is firmly connected to the switch shaft 470 and to which the transmission member 480 is connected in an articulated and / or movable manner.
  • the Figure 4 shows an exemplary embodiment of a switching kinematics 10 according to the invention.
  • the hold-open spring 190 is attached to the switch with one side 195.
  • the other end of the hold-open spring 190 engages the crank element 490.
  • the crank element 490 in turn is rotatably connected to the fastening element 400.
  • the crank element 490 has a deflection element 510, here preferably a roller, which in turn acts on a translation crank 610, which is also rotatably attached to the fastening element 400.
  • the transmission member 480 is attached to the transmission crank 610, the other side of which is attached to the switch shaft 470 and thus transmits the spring force of the hold-open spring 190 as torque to the switch shaft 470, the torque being essentially determined by the shape of the transmission crank 610.
  • the connection to the switch shaft 470 can take place via a lever element, not shown, which is firmly connected to the switch shaft 470 and to which the transmission member 480 is connected in an articulated and/or movable manner.
  • the Figure 5 shows a graphical representation in which the hold-open torque T OHF is plotted against the angle of rotation ⁇ of the switch shaft 470.
  • Curve 5010 shows the required holding open torque T OFF at the angle ⁇ OFF , as is required for switching kinematics from the prior art.
  • the hatched area 5020 under the curve 5010 corresponds to the energy E OHF that is necessary to tension the hold-open spring during the closing process of the switch.
  • the sections ⁇ OFF and ⁇ ON mark the rotation angles of the switch shaft once in the switched off state, i.e. the position in which the switching contacts of the vacuum interrupter 5 are separated, and the switched on state in which the switching contacts of the vacuum interrupter 5 are closed.
  • Curve 5000 shows a curve for the hold-open torque T OFF,* for a vacuum interrupter with a larger closing force F VI,* .
  • the area under curve 5000 is greater than the area under curve 5010, labeled 5020. It follows that a vacuum interrupter with an increased closing force F VI,* also requires more energy to tension the spring, i.e. the energy E OHF,* and thus places greater demands on the drive of the switch 1.
  • the Figure 6 shows different hold-open torque curves 6010, 6100, 6200 and 6300 for different couplings of the respective hold-open springs 90, 190 from the Figures 1 . 3 and 4 .
  • Curve 6010 shows the hold-open torque from prior art switching kinematics, as in Figure 1 and 5 shown.
  • Curve 6100 exemplifies the hold-open torque for the exemplary embodiment Figure 3 in which the hold-open torque T OHF acting on the switch shaft decreases the further the switch moves towards the ON position, i.e. in which the switching contacts of the vacuum interrupter 5 are off Figure 1 are closed.
  • the hold-open torque T OHF always remains greater than 0.
  • the curve 6200 for the hold-open torque T OHF is also for the exemplary embodiment Figure 3 .
  • the hold-open torque T OHF drops to negative values from a certain switch shaft angle ⁇ and the hold-open spring 190 thereby supports the closing process of the vacuum interrupter 5, which is in Figure 3 is not shown.
  • Such behavior is achieved by the mechanism from the Figure 3 is designed so that an extended position between the transmission member 480 and crank element 490 is passed through or exceeded. This is particular possible using dynamic effects due to the inertia of the entire system.
  • the hold-open torque characteristic T OHF goes through zero.
  • this configuration is even cheaper than the configuration of curve 6100 and, in extreme cases, even means that tensioning the hold-open spring does not require any drive energy E OHF , but can actually provide energy.
  • Curve 6300 shows an example curve for the configuration from Figure 4 . This approach provides the greatest possible flexibility with regard to the hold-open torque curve T OHF .
  • the hold-open torque T OHF can be set to zero at any angle ⁇ of the switch shaft 470. From this angle of rotation, no further energy is stored in the hold-open spring 190, which means that the spring is no longer tensioned.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Control Of Transmission Device (AREA)

Claims (6)

  1. Cinématique (10) de coupure d'un tube (5) interrupteur à vide d'un interrupteur (1) comprenant un entraînement, un ressort (20) de fermeture, une première coulisse (30) de coupure, qui est montée tournante autour d'un premier axe (40), un premier levier (50) de coupure, sur lequel la première coulisse (30) de coupure agit, un arbre (470) d'interrupteur, qui est solidaire du premier levier (50) de coupure, et un ressort (190) de maintien d'ouverture, qui agit sur l'arbre (470) d'interrupteur, dans laquelle le tube (5) interrupteur à vide a au moins deux contacts de coupure, dont l'un au moins est un contact mobile et le tube (5) interrupteur à vide peut passer entre une première position, dans laquelle les contacts de coupure du tube (5) interrupteur à vide sont séparés l'un de l'autre, et une deuxième position, dans laquelle les contacts de coupure sont en contact l'un avec l'autre, dans laquelle le ressort (190) de maintien d'ouverture est relié à l'arbre (470) de l'interrupteur par un élément (490) de manivelle et par un organe (480) de transmission, et
    le ressort (190) de maintien d'ouverture agit sur le premier levier (50) de coupure par l'organe (480) de transmission et l'arbre (470) de l'interrupteur et n'attaque pas ainsi directement le levier (50) de coupure, dans laquelle
    le ressort (190) de maintien d'ouverture est fixé à l'élément (490) de manivelle, et
    l'élément (490) de manivelle est monté mobile entre l'organe (480) de transmission et un élément (400) de fixation,
    caractérisée en ce que
    l'élément (490) de manivelle à un élément (510) de déviation monté de manière mobile,
    l'organe (480) de transmission est relié de manière mobile à une manivelle (610) de multiplication, la manivelle (610) de multiplication étant reliée à son tour de manière mobile à l'élément (400) de fixation, et
    le ressort (190) de maintien d'ouverture agit sur la manivelle (610) de multiplication par l'élément (510) de déviation et transmet ainsi le couple TOHF de maintien d'ouverture à l'organe (480) de transmission.
  2. Cinématique (10) de coupure suivant la revendication 1,
    caractérisée en ce que
    l'organe (480) de transmission est conçu, de manière à ce que l'organe (480) de transmission abaisse d'autant plus le couple de TOHF de maintien d'ouverture du ressort (190) de maintien d'ouverture sur l'arbre (470) d'interrupteur que les contacts de coupure du tube (5) interrupteur à vide se rapprochent de la deuxième position.
  3. Cinématique (10) de coupure suivant la revendication 2,
    caractérisée en ce que
    le couple TOHF de maintien d'ouverture du ressort (190) de maintien d'ouverture, sur lequel agit l'arbre (470) de l'interrupteur, est plus grand que zéro dans la première position du tube (5) interrupteur à vide et n'est pas plus petit que zéro dans la deuxième position.
  4. Cinématique (10) de coupure suivant la revendication 2,
    caractérisée en ce que
    le couple TOHF de maintien d'ouverture du ressort (190) de maintien d'ouverture, qui agit sur l'arbre (470) de l'interrupteur, est plus grand que zéro dans la première position du tube (5) interrupteur à vide et est plus petit que zéro dans la deuxième position.
  5. Cinématique (10) de coupure suivant la revendication 1,
    caractérisée en ce qu'
    une modification de la forme de la manivelle (610) de transmission provoque, sur l'arbre (470) de l'interrupteur, une variation du couple de maintien d'ouverture transmis par l'organe (480) de transmission.
  6. Procédé d'adaptation d'un couple TOHF de maintien d'ouverture transmis à un arbre (470) d'interrupteur,
    caractérisé en ce que
    dans une cinématique (10) de coupure suivant l'une des revendications 1 à 5, on adapte l'organe (480) de transmission et/ou la manivelle (610) de multiplication aux exigences de l'interrupteur (1) respectif.
EP18716988.3A 2018-04-04 2018-04-04 Cinématique de commutation pour tubes interrupteurs à vide et procédé d'adaptation d'un couple de maintien d'ouverture transmis sur un arbre de commutateur Active EP3753035B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2018/058596 WO2019192687A1 (fr) 2018-04-04 2018-04-04 Cinématique de commutation pour tubes interrupteurs à vide et procédé d'adaptation d'un couple de maintien d'ouverture transmis sur un arbre de commutateur

Publications (2)

Publication Number Publication Date
EP3753035A1 EP3753035A1 (fr) 2020-12-23
EP3753035B1 true EP3753035B1 (fr) 2024-03-20

Family

ID=61952688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18716988.3A Active EP3753035B1 (fr) 2018-04-04 2018-04-04 Cinématique de commutation pour tubes interrupteurs à vide et procédé d'adaptation d'un couple de maintien d'ouverture transmis sur un arbre de commutateur

Country Status (3)

Country Link
EP (1) EP3753035B1 (fr)
DE (1) DE102019202931A1 (fr)
WO (1) WO2019192687A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1938408A (en) * 1931-09-04 1933-12-05 Gen Electric Switch operating mechanism
DE2717958B2 (de) * 1977-04-20 1979-06-13 Siemens Ag, 1000 Berlin Und 8000 Muenchen Antriebsvorrichtung für elektrische Schaltgeräte mit Druckkontakten
JPH04162321A (ja) * 1990-10-25 1992-06-05 Fuji Electric Co Ltd 回路遮断器の駆動装置
JPH06231656A (ja) * 1993-02-02 1994-08-19 Toshiba Corp 回路遮断器の操作機構

Also Published As

Publication number Publication date
WO2019192687A1 (fr) 2019-10-10
DE102019202931A1 (de) 2019-10-10
EP3753035A1 (fr) 2020-12-23

Similar Documents

Publication Publication Date Title
EP0115739B1 (fr) Interrupteur à vide à deux tubes interrupteurs en série par pôle
EP3433867B1 (fr) Élément de couplage pour un appareil de commutation électrique
DE102015200135A1 (de) Kopplungsglied für ein elektrisches Schaltgerät,insbesondere eine Vakuumschaltröhre
WO2010149483A1 (fr) Fenêtre d'inspection et borne de mise à la terre pour un ensemble haute tension
EP2174330B1 (fr) Microcommutateur
DE102014102875B4 (de) Betätigungsvorrichtung zum Betätigen einer Vakuumschaltröhre, Schaltvorrichtung mit einer solchen Betätigungsvorrichtung sowie Laststufenschalter mit einer solchen Schaltvorrichtung
DE3247490C2 (fr)
EP1933348B1 (fr) Disjoncteur à haute tension avec un dispositif de transmission avec un point mort
EP3753035B1 (fr) Cinématique de commutation pour tubes interrupteurs à vide et procédé d'adaptation d'un couple de maintien d'ouverture transmis sur un arbre de commutateur
WO1993007635A1 (fr) Interrupteur a vide multipolaire avec une unite d'entrainement polaire pour chaque tube commutateur a vide
EP2601662B1 (fr) Entraînement pour un sectionneur à capacité de commutation c ou o
DE102009020397B4 (de) Anordnung zum Prüfen eines Kontaktsystems eines Schutzschaltgeräts und Prüfverfahren
DE102009020396B4 (de) Fehlerstromschutzschalter
DE69205503T2 (de) Verbesserter Antriebsmechanismus für einen elektrischen Schalter, insbesondere Schutzschalter oder Leistungsschalter.
EP2586049B1 (fr) Commutateur à gradins
DE102016124663B4 (de) Anordnung, umfassend ein Einschubmodul für eine Schaltanlage mit einem elektrischen Kontaktelement und einen Antrieb
WO2021175554A1 (fr) Unité de commande pour commander des contacts de commutation de disjoncteur haute tension
DE102021124271A1 (de) Leistungsschalter
DE632302C (de) Antrieb fuer elektrische Schalter mit Freiausloesung
DE202021103333U1 (de) Schaltvorrichtung
DE102012215482B3 (de) Vorrichtung zum Betätigen eines elektrischen Schalters
WO2020201000A1 (fr) Couplage, système de ressorts, système d'entraînement à couplage et système de ressorts et appareillage pourvu de ce système d'entraînement
EP1553611A1 (fr) Appareillage de commutation à vide
DE102012216974A1 (de) Vorrichtung zur Übertragung von Kräften
DE102010052979A1 (de) Laststufenschalter

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20200914

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20231109

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502018014279

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN