EP1925006B1 - Mechanismus zum steuern einer stromverteilungszelle und tumbler dafür - Google Patents

Mechanismus zum steuern einer stromverteilungszelle und tumbler dafür Download PDF

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Publication number
EP1925006B1
EP1925006B1 EP06793415A EP06793415A EP1925006B1 EP 1925006 B1 EP1925006 B1 EP 1925006B1 EP 06793415 A EP06793415 A EP 06793415A EP 06793415 A EP06793415 A EP 06793415A EP 1925006 B1 EP1925006 B1 EP 1925006B1
Authority
EP
European Patent Office
Prior art keywords
tumbler
switch
closed position
open position
thermoplastic material
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
EP06793415A
Other languages
English (en)
French (fr)
Other versions
EP1925006A2 (de
Inventor
Alain Quemin
Daniel Piccoz
Myriam Bastard
Mathieu Nesme
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.)
Grid Solutions SAS
Original Assignee
Areva T&D SAS
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Filing date
Publication date
Application filed by Areva T&D SAS filed Critical Areva T&D SAS
Publication of EP1925006A2 publication Critical patent/EP1925006A2/de
Application granted granted Critical
Publication of EP1925006B1 publication Critical patent/EP1925006B1/de
Active legal-status Critical Current
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Classifications

    • 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
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/12—Movable parts; Contacts mounted thereon
    • H01H23/14—Tumblers
    • H01H23/146—Tumblers having a generally tubular or conical elongated shape, e.g. dolly

Definitions

  • the invention relates to a control mechanism of a current distribution cell comprising a first rotary tumbler mounted on an axis between an open position in which a first switch is open and a closed position in which the first switch is in position. closed position; a second tumbler rotatably mounted on an axis between an open position in which a second switch is open and a closed position in which the second switch is in the closed position.
  • a tumbler for this mechanism comprising a central portion and two parallel flanges connected to the central portion, each of the flanges comprising a receiving zone for receiving a colon.
  • the current distribution cells for example the medium voltage cells, comprise two members: a first switch which establishes or cuts the passage of the current in the cell and a second switch which makes it possible to connect the cables of the cell to the potential 0V.
  • the second switch is a protection of the operator, for example to carry out maintenance.
  • the members are controlled by a spring-loaded control mechanism that is operated using a removable lever.
  • This type of mechanism is mainly used for medium voltage switchgear. However, it also applies to high voltage transmission and distribution activities.
  • Tumblers are known made of mechanically welded steel parts. Tumblers made of steel or cast aluminum are also known. However, these mechanisms have disadvantages. Indeed, the axes used in these tumblers are metallic. It is therefore necessary to mount them on bearings which constitutes additional parts and increases the cost. In addition, these bearings must be greased which requires maintenance operations. Finally, the fats used tend to gel (or freeze or coagulate), resulting in a risk of seizure. Since we do not know the behavior long term of these greases and that the preventive maintenance is not always done by the user, we must have a higher energy to allow a functioning even in the absence of fat or if this one deteriorated to overcome higher friction forces.
  • the tumblers of the prior art also have a number of other disadvantages. They require anti-corrosion protection. They also have the risk of damage and abrupt failure in fatigue.
  • the subject of the invention is a control mechanism of a current distribution cell and a tumbler for the mechanism of this cell which overcomes these disadvantages. It proposes a safe mechanism throughout the life of the mechanism.
  • first tumbler and / or the second tumbler are made of a thermoplastic material.
  • thermoplastic material is chosen from the family of polyoxymethylenes (POMs).
  • POMs polyoxymethylenes
  • the thermoplastic material has a Young's modulus of between 1000 and 12000 MPa and a tensile strength of between 20 and 250 MPa.
  • the material is chosen from the group comprising Delrin POM 100 and POM Delrin 100 ST, the characteristics of which are defined below.
  • FIG. 1 2 denotes a disconnector tumbler and reference 4 a switch tumbler.
  • the tumbler 2 is rotatably mounted on a disconnector shaft 6 and the tumbler 4 is rotatably mounted on a switch shaft 8.
  • the shafts 6 and 8 are metallic. They are mounted between a front plate (not shown) mounted parallel to the rear plate. Columns 12 are mounted between the front plate and the rear plate. These columns serve to limit the rotational movement of the tumblers 2 and 4.
  • a spring 14 is mounted between the tumbler 2 and the tumbler 4.
  • the spring 14 is pivotally mounted at one end on the tumbler 2 about an axis of Earthing spring 16 and is pivotally mounted at its other end on the switch tumbler 4 about a switch spring axis 18.
  • a disc 20 is rotatably mounted on the same shaft 8 as the tumbler 4.
  • a rod 22 is pivotally mounted at one of its ends on the disc 20. At its other end, the rod 22 is pivotally mounted on a driver 24 which drives the switch through its axis.
  • a tumbler part of the mechanism of the figure 1 comprises a central portion or hub 30 and two parallel flanges 32 connected to the central portion.
  • Each of the flanges 32 has reception zones 34 in the shape of an arc of a circle.
  • the receiving zones 34 are intended to receive the column 12 when the switch passes from the open position to the closed position and vice versa.
  • FIG 3 a perspective view of a disconnector tumbler.
  • a disconnector tumbler comprises a central portion or hub 36 and two parallel flanges 38 on which are formed reception zones 40 in the shape of a circular arc intended to receive the corresponding column 12 when the tumbler moves from its open position to its closed position and vice versa.
  • the mechanism has been shown earthing switch in open position and switch in open position also. This mechanism is operated by means of a control lever which is placed on the front of the mechanism.
  • the tumbler 4 has rotated a few tens of degrees so that the axis 18 of the spring has moved which leads to the neutral position shown on the figure 4 in which the spring is aligned with the pivot axis 8 of the tumbler. At this stage, only the tumbler 4 and the spring 14 are moving.
  • the spring 14 relaxes and takes the relay of the operator: it drives the tumbler switch 4 rotating.
  • the control lever is disengaged and no longer intervenes in the maneuver.
  • the switch tumbler rotated comes to hit the drive disk which is itself rotated.
  • the drive disk then rotates the driver via the connecting rod 22.
  • the function of the disk assembly 20, connecting rod 22, driver 24 is therefore to relocate the maneuver.
  • the operator turns the trumbler to a certain level, but the actual operation of the switch is higher with the coach 24.
  • the tumbler 2 directly actuates the earthing switch on the electrical equipment. There is therefore also a phase of energy accumulation (compression of the spring by the operator by means of the control lever) and a phase of release of this energy by the relaxation of the spring. However, the power output is less important because the compression stroke is lower.
  • the earthing switch tumbler thus moves from its open position represented on the figures 1 , 4 and 5 to its closed position represented on the figure 6 .
  • the tumblers 2 and 4, the disk 20, the rod 22 and the driver 24 are made of polyoxymethylene (POM). More preferably they are made of a thermoplastic material having a Young's modulus of between 1000 and 12000 MPa and a tensile strength of between 20 and 250 MPa.
  • a thermoplastic material having a Young's modulus of between 1000 and 12000 MPa and a tensile strength of between 20 and 250 MPa.
  • Delrin 100® or Delrin 100ST® whose main mechanical characteristics are as follows. properties units Steel Alu (type AU4G) POM Delrin 100 POM Delrin 100 ST Young's module MPa 210,000 70,000 3100 1400 Stress at break MPa 440 380 71 43
  • plastic parts have a mechanical strength 4 to 5 times lower than that of equivalent parts made of steel or aluminum.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Eyeglasses (AREA)
  • Electromechanical Clocks (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
  • Breakers (AREA)
  • Toys (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Claims (4)

  1. Mechanismus zum Steuern einer Stromverteilungszelle, enthaltend:
    - einen ersten Schalter-Tumbler (4), der drehbar zwischen einer Offenstellung, in welcher ein erster Schalter in Offenstellung ist, und einer Schließstellung, in welcher der erste Schalter in Schließstellung ist, an einer Welle (8) gelagert ist;
    - einen zweiten Schalter-Tumbler (2), der drehbar zwischen einer Offenstellung, in welcher ein zweiter Schalter in Offenstellung ist, und einer Schließstellung, in welcher der zweite Schalter in Schließstellung ist, an einer Welle (6) gelagert ist,
    dadurch gekennzeichnet, dass der erste und der zweite Tumbler einen Mittelabschnitt (30) und zwei parallel verlaufende Flansche (32) aufweisen, die mit dem Mittelabschnitt (30) verbunden sind, wobei die Flansche jeweils einen Aufnahmebereich (34) zum Aufnehmen eines Stifts (12) aufweisen, und dass der erste Tumbler (4) und/oder der zweite Tumbler (2) aus einem Thermoplast hergestellt sind.
  2. Mechanismus nach Anspruch 1, dadurch gekennzeichnet, dass der Thermoplast aus der Gruppe der Polyoxymethylene (POM) ausgewählt ist.
  3. Mechanismus nach Anspruch 2, dadurch gekennzeichnet, dass der Thermoplast einen Elastizitätsmodul von zwischen 1000 und 12000 MPa besitzt.
  4. Mechanismus nach Anspruch 3, dadurch gekennzeichnet, dass der Thermoplast eine Bruchfestigkeit von zwischen 20 und 250 MPa besitzt.
EP06793415A 2005-09-13 2006-09-11 Mechanismus zum steuern einer stromverteilungszelle und tumbler dafür Active EP1925006B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0552751A FR2890779B1 (fr) 2005-09-13 2005-09-13 Mecanisme de commande d'une cellule de distribution de courant et tumbler pour ce mecanisme
PCT/EP2006/066236 WO2007031494A2 (fr) 2005-09-13 2006-09-11 Mecanisme de commande d'une cellule de distribution de courant et tumbler pour ce mecanisme

Publications (2)

Publication Number Publication Date
EP1925006A2 EP1925006A2 (de) 2008-05-28
EP1925006B1 true EP1925006B1 (de) 2010-06-30

Family

ID=36424054

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06793415A Active EP1925006B1 (de) 2005-09-13 2006-09-11 Mechanismus zum steuern einer stromverteilungszelle und tumbler dafür

Country Status (7)

Country Link
EP (1) EP1925006B1 (de)
CN (1) CN101263570B (de)
AT (1) ATE472813T1 (de)
DE (1) DE602006015207D1 (de)
ES (1) ES2348859T3 (de)
FR (1) FR2890779B1 (de)
WO (1) WO2007031494A2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2934922A1 (fr) * 2008-08-05 2010-02-12 Areva T & D Sa Procede de desarmement manuel d'un mecanisme a double accrochage d'une commande d'appareillage electrique haute ou moyenne tension et commande associee.
FR3113335B1 (fr) 2020-08-10 2022-11-04 Schneider Electric Ind Sas Dispositif de verrouillage destiné à empêcher la mise à la terre d’un appareil de protection

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4644113A (en) * 1985-10-09 1987-02-17 Huang L D Electric safety device
DE3816108A1 (de) * 1988-05-11 1989-11-23 Asea Brown Boveri Elektrisches schaltgeraet
CN2062490U (zh) * 1990-02-26 1990-09-19 长沙市高压开关厂 带接地刀的户内高压隔离开关
DE9110741U1 (de) * 1991-08-30 1991-11-07 Buckel, Antonie, 91217 Hersbruck Mechanische Schalterverriegelung
CN2151528Y (zh) * 1993-04-12 1993-12-29 淮南煤矿机械厂 机械电气联锁装置
US5648646A (en) * 1995-06-19 1997-07-15 Reliance Time Controls, Inc. Circuit breaker linkage assembly
FR2795550B1 (fr) * 1999-06-28 2001-09-21 Legrand Sa Interrupteur comportant deux balais conducteurs, tels que permutateur ou interrupteur pour volet roulant

Also Published As

Publication number Publication date
WO2007031494A2 (fr) 2007-03-22
CN101263570A (zh) 2008-09-10
ES2348859T3 (es) 2010-12-03
EP1925006A2 (de) 2008-05-28
FR2890779B1 (fr) 2008-01-18
CN101263570B (zh) 2011-12-07
WO2007031494A3 (fr) 2007-11-22
FR2890779A1 (fr) 2007-03-16
ATE472813T1 (de) 2010-07-15
WO2007031494B1 (fr) 2008-01-03
DE602006015207D1 (de) 2010-08-12

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