EP2204828A1 - Einrastmechanismus einer Hoch- und Mittelspannungs-Anlagensteuerung mit verbesserter Kompaktheit und verbesserten Kosten - Google Patents

Einrastmechanismus einer Hoch- und Mittelspannungs-Anlagensteuerung mit verbesserter Kompaktheit und verbesserten Kosten Download PDF

Info

Publication number
EP2204828A1
EP2204828A1 EP09180797A EP09180797A EP2204828A1 EP 2204828 A1 EP2204828 A1 EP 2204828A1 EP 09180797 A EP09180797 A EP 09180797A EP 09180797 A EP09180797 A EP 09180797A EP 2204828 A1 EP2204828 A1 EP 2204828A1
Authority
EP
European Patent Office
Prior art keywords
opening
wheel
control
closing
finger
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.)
Granted
Application number
EP09180797A
Other languages
English (en)
French (fr)
Other versions
EP2204828B1 (de
Inventor
Mathieu Marquet
Antoine Vicaigne
Romain Maladen
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.)
Schneider Electric Energy France SAS
Original Assignee
Areva T&D SAS
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 Areva T&D SAS filed Critical Areva T&D SAS
Publication of EP2204828A1 publication Critical patent/EP2204828A1/de
Application granted granted Critical
Publication of EP2204828B1 publication Critical patent/EP2204828B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/22Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3031Means for locking the spring in a charged state
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/22Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H2003/3063Decoupling charging handle or motor at end of charging cycle or during charged condition
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/22Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3042Power arrangements internal to the switch for operating the driving mechanism using spring motor using a torsion spring

Definitions

  • the invention relates to the field of control of electrical equipment with high or medium voltage provided with at least one switch.
  • the equipment covered by the invention may include up to three switches with different function: current switch, bar switch, earthing switch.
  • the invention relates more particularly to the controls which comprise a hooking mechanism whose disarming is capable of causing a closing / opening cycle of at least one operating switch of the electrical equipment.
  • the invention aims to propose a new structure of the snap mechanism.
  • a control of a high or medium voltage switchgear equipped with at least one switch comprises a mechanism usually called a double snap mechanism.
  • the double latching mechanisms can store energy to perform two operations of at least one switch of the electrical equipment which is provided with a closing maneuver and an opening maneuver.
  • a known type of double-hook mechanisms is that comprising two spiral springs, typically having a high stiffness for high or medium voltage application. They are compressed during a maneuver called “arming" that can be performed manually (with a lever) and / or motorized. The arming of this mechanism is obtained, for normative reasons, by rotation in the same direction of rotation.
  • the mechanisms comprising two coaxial coil springs are preferred over those comprising one (or two) compression spring (s) because they make it possible on the one hand to design a compact system and on the other hand to obtain a ideal energy distribution since the torque supplied by each of the spiral springs is maximum at the beginning maneuver (when the spring is compressed to the maximum) and that it is always ideally oriented (zero radial force).
  • FIG. figure 1 A double-hook mechanism already commercialized and using two coaxial coil springs to accumulate the energy necessary for closing and opening the switch is shown schematically in FIG. figure 1 .
  • the frame of said command, as well as the switch of high or medium voltage switchgear are not shown: the movements and rotational connections of the various elements are described below with reference to the fixed frame.
  • unrepresented rotational coupling means are arranged between the opening wheel 3 and the exit / closure wheel 4 such that beyond a rotation of the opening wheel 3 counterclockwise, the latter rotates in the same direction the closing output wheel 4.
  • the mechanism M In this locking position, the mechanism M is in a state corresponding to the open switch, the springs 5, 6 compressed (or armed) and the gripping fingers 7, 8 respectively hooked on the opening wheel 3 and the exit / exit wheel 4.
  • the closing finger 8 is automatically attached to the output wheel 4.
  • the new state of the fully disarmed mechanism therefore corresponds to the initial state, that is to say with the open switch, the springs relaxed or 5, 6, the fastening gripping finger 8 in engagement with the closing wheel 4 and the opening gripping finger 7 free.
  • This mechanism M has the particular advantage of providing a maneuver cocking and closing in the same direction (clockwise).
  • the mechanism M according to the state of the art is not completely satisfactory because, it is complex to achieve, includes a high number of parts with in particular a stack of parts too important detrimental to cost and space of the mechanism. This stack of parts is due to the presence of the rotary arming system 2, the arming pin 20 which serves thus uncoupling or disengagement between the manual operating lever (and the opening wheel 1 which is connected thereto by splines) and the rest of the mechanism.
  • the inventors have judiciously thought to reduce the number of layers of rotating parts to two (instead of four) by integrating the functions of opening, arming, and control on the same wheel and incorporating disengagement or disengagement means at the end of the arming stroke between the operating lever and the combined wheel on the thickness of the latter.
  • the opening finger and the closing finger are pivotally mounted on the same axis.
  • a double latching mechanism according to the invention can be particularly used in the so-called "normal / emergency" applications that are encountered when part of an electrical network must always be supplied permanently (for example hospitals).
  • the part of the electrical network comprises two separate power sources, one being active while the other remains inactive.
  • the main source active in normal conditions fails, its associated switch opens while the so-called emergency switch closes under the action of the release of the closing energy of the double latching mechanism which is dedicated.
  • the main source is restored, its switch is closed and the emergency switch is then automatically re-opened by releasing the opening energy of the dedicated double latching mechanism.
  • the closing fastening means can be released automatically at the end of the arming maneuver. This can be made possible for example by ejection of a closing finger. We do so somehow a simple snap mechanism by making the closing snap temporarily.
  • a simple snap mechanism according to the invention thus has, after a closing of the switch, immediately after the arming phase, enough energy to be able to open the switch by releasing an opening hooking means. .
  • the main application of this type of simple snap mechanism is the fuse-protected switches whose melting causes mechanical actuation of the mechanism, the latter opening the switch with the appropriate switch disconnector equipment equipment.
  • the means for coupling and uncoupling at the end of cocking between the manual lever and the combined opening, arming and control wheel which are integrated in the thickness of the latter advantageously comprise a fixed mechanical stop and a finger said control finger pivotally mounted on the combined wheel between two positions one said control position in which it delimits a space with the combined wheel inside a portion of the manual lever can be inserted by being locked in rotation to achieve the coupling and the other said so-called ejection position in which the portion of the manual lever is free to perform the uncoupling at the end of arming, the passage from the control position to the ejection position being caused by the setting in support of the control finger or a member secured to the control finger on the mechanical stop after a lever rotation stroke manual that allowed the compression of the springs opening and closing and their attachment.
  • the bearing on the mechanical stop is preferably carried out by direct contact of a lever part which is fixed on the control finger, the lever arm between the fulcrum of the lever on the stop and the point of attachment. from the lever to the control finger being made so as to reduce to a predetermined value, the effort at the end of the manual cocking lever.
  • the use of a lever arm system adapted with the control finger significantly reduces the forces at the end of manual arming lever at a predetermined value typically of the order of 250N. This takes into account the fact that by technical specification, the effort at the end of the manual arming lever must not exceed a value of the order of 250N.
  • the length of the manual arming lever must not increase the size of the control functional unit which comprises the mechanism according to the invention, which means that it is not possible to increase this length to reduce efforts.
  • At least one wheel or both wheels may be made of thermoplastic material.
  • the invention also relates to high or medium voltage electrical equipment provided with at least one switch, comprising a control provided with a hook mechanism as described above.
  • the double latching mechanism (M) according to the state of the art has already been discussed above and will not be discussed below.
  • the mechanism according to the invention Mi is in an initial state corresponding to the open switch.
  • the springs 5, 6 are disarmed, the closing finger 8 catches the exit / closure wheel 4 while the opening finger 7 is free.
  • the closing finger 8 is automatically attached to the output wheel 4.
  • the mechanism according to the invention is in a state corresponding to the open switch, the two springs of opening 5 and closing 6 released or disarmed, the closing gripping finger 8 hooked on the closing wheel 4 and the gripping finger 7 of free opening ( Figure 5B ).
  • the pin portion 90 of the manual lever 9 is housed in a space S delimited between a control finger 11 pivotally mounted on the wheel 1, 2, 3 and the latter, the finger 11 being moreover in contact with the wheel 1, 2, 3 in this nearest command position.
  • the pallet 110 bears directly against the fixed stop 111 ( Figure 6B ).
  • the rotation stroke is of the order of 65 °.
  • the attachment of the wheel 1, 2, 3 is then achieved by the opening hooking finger 7.
  • the kinematics of the double latching mechanism (Mi) according to the invention has been successfully tested using a kinematic software.

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP09180797.4A 2009-01-05 2009-12-28 Einrastmechanismus einer Hoch- und Mittelspannungs-Anlagensteuerung mit verbesserter Kompaktheit und verbesserten Kosten Not-in-force EP2204828B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0950011A FR2940850B1 (fr) 2009-01-05 2009-01-05 Mecanisme a accrochage d'une commande d'appareillage a haute ou moyenne tension a compacite et cout ameliores

Publications (2)

Publication Number Publication Date
EP2204828A1 true EP2204828A1 (de) 2010-07-07
EP2204828B1 EP2204828B1 (de) 2015-04-08

Family

ID=40996829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09180797.4A Not-in-force EP2204828B1 (de) 2009-01-05 2009-12-28 Einrastmechanismus einer Hoch- und Mittelspannungs-Anlagensteuerung mit verbesserter Kompaktheit und verbesserten Kosten

Country Status (4)

Country Link
EP (1) EP2204828B1 (de)
CN (1) CN101770879B (de)
ES (1) ES2541463T3 (de)
FR (1) FR2940850B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3086455A1 (fr) 2018-09-20 2020-03-27 Schneider Electric Industries Sas Systeme d'actionnement pour appareil electrique interrupteur
CN111223692A (zh) * 2018-11-26 2020-06-02 施耐德电器工业公司 用于控制电气开关单元的电流切断装置的闭合和断开的机构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3672233A (en) * 1970-07-06 1972-06-27 Clare & Co C P Actuator mechanism
FR2160980A1 (de) * 1971-11-23 1973-07-06 Siemens Ag
US20070131526A1 (en) * 2005-12-14 2007-06-14 Eaton Corporation Reverse bias hatchet reset spring

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060087492A1 (en) * 2004-09-01 2006-04-27 Speed Tech Corp. Fixture device for a roller construction module
ATE356536T1 (de) * 2004-10-14 2007-03-15 Research In Motion Ltd Verfahren zum befestigen eines daumenradschalters auf einer leiterplatte und elektronisches handgerät mit einer solchen anordnung
US7351107B1 (en) * 2007-01-03 2008-04-01 Delphi Technologies, Inc. One-piece electromagnetic shield having mechanical attachment features

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3672233A (en) * 1970-07-06 1972-06-27 Clare & Co C P Actuator mechanism
FR2160980A1 (de) * 1971-11-23 1973-07-06 Siemens Ag
US20070131526A1 (en) * 2005-12-14 2007-06-14 Eaton Corporation Reverse bias hatchet reset spring

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3086455A1 (fr) 2018-09-20 2020-03-27 Schneider Electric Industries Sas Systeme d'actionnement pour appareil electrique interrupteur
EP3629351A1 (de) 2018-09-20 2020-04-01 Schneider Electric Industries SAS Betätigungssystem für elektrisches schaltgerät
CN111223692A (zh) * 2018-11-26 2020-06-02 施耐德电器工业公司 用于控制电气开关单元的电流切断装置的闭合和断开的机构
CN111223692B (zh) * 2018-11-26 2023-07-18 施耐德电器工业公司 用于控制电气开关单元的电流切断装置的闭合和断开的机构

Also Published As

Publication number Publication date
EP2204828B1 (de) 2015-04-08
ES2541463T3 (es) 2015-07-20
FR2940850A1 (fr) 2010-07-09
FR2940850B1 (fr) 2011-02-11
CN101770879B (zh) 2014-03-19
CN101770879A (zh) 2010-07-07

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