EP0696039B1 - Mécanisme de disjoncteur équipé d'un dispositif accumulateur d'énergie à butée d'amortissement - Google Patents

Mécanisme de disjoncteur équipé d'un dispositif accumulateur d'énergie à butée d'amortissement Download PDF

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Publication number
EP0696039B1
EP0696039B1 EP95410068A EP95410068A EP0696039B1 EP 0696039 B1 EP0696039 B1 EP 0696039B1 EP 95410068 A EP95410068 A EP 95410068A EP 95410068 A EP95410068 A EP 95410068A EP 0696039 B1 EP0696039 B1 EP 0696039B1
Authority
EP
European Patent Office
Prior art keywords
cap
spring
circuit breaker
telescopic link
guide
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.)
Expired - Lifetime
Application number
EP95410068A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0696039A1 (fr
Inventor
Pierre Latapie
Pierre Baginski
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 SE
Original Assignee
Schneider Electric SE
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 Schneider Electric SE filed Critical Schneider Electric SE
Publication of EP0696039A1 publication Critical patent/EP0696039A1/fr
Application granted granted Critical
Publication of EP0696039B1 publication Critical patent/EP0696039B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
    • 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
    • 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
    • H01H2003/3068—Housing support frame for energy accumulator and cooperating 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
    • H01H3/3005—Charging means
    • H01H3/3015—Charging means using cam devices

Definitions

  • Document DE-A-2603536 relates to a drive mechanism for a circuit breaker medium voltage, in which a closing spring is supported on a shaped support mobile piston coupled by a transmission rod to a control crank.
  • the piston moves inside a cylinder to constitute a pneumatic dashpot to air compression intended to generate a progressive braking force during the closing of the circuit breaker.
  • the dashpot is arranged outside the closing spring, which increases the axial size in the direction of the rebound of the spring. Braking force exists from the start of the relaxation of the spring 16.
  • the object of the invention is to improve the mechanical endurance of a energy storage circuit breaker control.
  • the telescopic link comprises a yoke in connection with the driving lever, and cooperating slidingly with a guide, and a slide arranged in an intermediate drawer between the guide and the yoke, said slide being equipped with a retaining rim intended to interfere with a conjugate shoulder of the yoke to form said damping stop.
  • the main compression spring is inserted between a bearing surface of the yoke, and a slide base, said base being located opposite the rim.
  • An auxiliary spring polarization is interposed coaxially inside the slide between the guide, and a longitudinal extension of the screed.
  • a multipolar electric circuit breaker having at least one pair of contacts 10, 12, separable by pole, is actuated by a mechanism 14 of control carried by a chassis with parallel flanges 15 and comprising a toggle joint device 16 associated with a trigger hook 18.
  • the toggle joint device 16 comprises a pair of links 20, 22 articulated on an axis pivot 24, the lower link 20 of transmission being mechanically coupled to a transverse switching rod 23, common to all of the poles.
  • the bar 23 consists of a shaft 26 rotatably mounted between an open position and a position for closing the contacts 10, 12.
  • At each pole there is a rod 30 of link which connects a crank of the bar 23 to an insulating cage 28 for supporting the contact mobile 12.
  • the latter is connected to a connection pad 32 by a conductor flexible 34, in particular a braid.
  • a contact pressure spring 36 is arranged between the cage 28 and the upper face of each movable contact 12.
  • the trigger hook 18 is pivotally mounted on a main axis 38 fixed between an armed position ( Figure 1) and a triggered position.
  • An opening spring 40 is anchored between a lug 42 of the bar 23 and a fixed retaining cleat 44 disposed above the toggle device 16.
  • An opening pawl 46 formed by a locking lever pivotally mounted on an axis 48, is controlled by a first latch 50 half moon shape.
  • a spring 52 for returning the opening pawl 46 is located opposite of the first lock 50 relative to the axis 48.
  • a stop 54 formed on the pawl 46 between the axis 48 and the latch 50, cooperates in the armed position with a recess 56 in V of the trigger hook 18.
  • the upper link 22 of the toggle joint 16 is articulated on an axis 58 of the trigger hook 18 opposite the recess 56.
  • the mechanism 14 includes a reset cam 62 keyed to the main axis 38 of the hook 18, and cooperating with an energy storage system 64.
  • the energy storage system 64 is equipped a closing pawl 66 controlled by a second latch 68, and a lever driver 70 pivotally mounted on an axis 69.
  • An elastic accumulation device of energy 71 is arranged between a housing 74 of the chassis and a finger 76 for transmitting the driving lever 70.
  • the reset cam 62 cooperates with a roller 78 of the lever coach 70, and the elastic device 71 for accumulating energy biases the latter in support of the cam 62.
  • the profile of the cam 62 comprises a first arming sector 80 of the closing spring 72, and a second sector 82 corresponding to the release of the roller 78 authorizing a sudden pivoting of the driving lever 70 in the opposite direction of clockwise under the detent action of the elastic device 71.
  • the cam resetting 62 is also provided with a lug 84 capable of coming into abutment with the pawl closing 66 when the end of the first sector 80 of the cam 62 is in abutment on the roller 78 of the driving lever 70.
  • the contacts 10, 12 are either in the open position or in the closed position, according to the state of the toggle joint device 16.
  • the roller 78 rests on the first sector 80 exerts a torque on the reset cam 62 urging the latter to rotate in the clockwise.
  • the closing pawl 66 opposes this rotation thanks to the retention of the lug 84 of the cam 62.
  • the mechanism 14 cooperates with a magnetothermal or electronic trip device (not shown) to cause the automatic opening of the contacts 10, 12, in the event of overload or fault.
  • a closing operation can be controlled by actuation of the second latch 68 causing the closing pawl 66 to pivot about its axis 88 in the counterclockwise. This results in a release of the lug 84 causing under the action of the roller 78 a pivoting of the cam 62 clockwise watch bringing the second sector 82 of the cam 62 into the lever release position trainer 70.
  • the latter is then driven counterclockwise by the relaxation of the elastic device 71 so as to transmit a closing force to the toggle device 16 moving the contacts 10, 12 to the closed position ( Figure 3). This closing maneuver takes place against the force of the opening spring 40, which is thus automatically armed when the elastic device 71 is released.
  • the reset cam 62 rotates with the main axis 38 in the same direction of rotation, and occupies two stable positions, at know an armed position ( Figure 1) in which the cam 62 is locked by the pawl 66, and a disarmed position ( Figure 3) authorizing the release of the lever coach 70 and the relaxation of the elastic device 71.
  • the elastic device 71 of the energy accumulator system 64 for the closing of the contacts 10, 12 of the circuit breaker comprises a telescopic connection 90 in which is integrated with a damping stop 91.
  • the telescopic link 90 is equipped a guide 92 positioned in the housing 74 of the chassis, and a yoke 94 capable of slide along the guide 92, and comprising a housing for housing the finger 76 of the lever coach 70.
  • a slide 100 in the form of an intermediate drawer is interposed between the guide 92 and the yoke 94, and has an annular flange 102 cooperating with a shoulder 104 conjugate located on a longitudinal extension 105 of the yoke 94 to form the stop depreciation 91.
  • a main compression spring 106 is inserted between the yoke 94, and a base 108 external of the slide 100, which base is located opposite the flange 102.
  • a spring polarization auxiliary 110 is arranged coaxially inside the slide 100 in bearing on the guide 92 and the shoulder 104 of the longitudinal extension 105 of the yoke 94. The stiffness of the auxiliary spring 110 is less than that of the main spring 106.
  • the reset cam 62 is locked in the armed position by the closing pawl 66, and the two springs 106, 110 are compressed at most by the relative approximation of the yoke 94 by relative to the guide 92.
  • the edge 102 of the slide 100 is separated longitudinally from the shoulder 104 of the yoke 94 by a predetermined distance 112.
  • the relaxation of the main spring 106 causes the driving lever 70 to pivot around axis 69 counterclockwise.
  • the driving lever 70 acts on the upper link 22 so as to drive the toggle joint device 16 to a intermediate position corresponding to exceeding the closing dead center.
  • the system accumulator 64 is then in the position of FIG. 2, in which the shoulder 104 of the yoke 94 comes into engagement against the rim 102 of the slide 100, so to constitute the damping stop 91 intended to absorb the excess energy of the spring 106, before the driving lever 70 comes into contact with the fixed stud 114.
  • this damping stop 91 results from the elasticity of the steel parts, which could be reinforced by means of an elastic ring (not shown), arranged either on the shoulder 104, ie on the rim 102.
  • the elastic ring could of course be replaced by any other absorption interface.
  • the control energy required for closing the contacts 10, 12 of the circuit breaker is presented by curve A, which extends between the open position O of the contacts, and the intermediate point PMF for passage of the closing dead center.
  • the curve B illustrates, the closing energy of a conventional mechanism, for the total stroke 11 of the driving lever 70, in particular that described in document EP-A-222 645.
  • the curve C reflects the closing energy of the mechanism according to the invention, thanks to the presence of the damping stop 91 inside the telescopic link 90, making it possible to absorb the excess energy after the PMF product from the neutral point of closure. Race 12 is less than the stroke 11, which improves the endurance of the mechanism 14.
  • damping stop 91 also authorizes the increase in the number circuit breaker no-load starts. Certain standards indeed impose the disarmament of the energy storage mechanism when the circuit breaker is withdrawn, independently the open or closed position of the contacts.
  • a disarm lever (not shown) is made active during the circuit-breaker drawout stroke to act on the latch hooking 68 so as to unlock the closing pawl 66 driving automatically the rebound of the springs 106, 110.
  • the energy storage system 64 with stop 91 can be integrated, either directly in the mechanism 14 of a one-piece circuit breaker, either in a coupled remote control unit mechanically at the circuit breaker block.
  • the reset cam 62 can be replaced by any other control means for closing the closing spring.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Vibration Dampers (AREA)
EP95410068A 1994-08-01 1995-07-04 Mécanisme de disjoncteur équipé d'un dispositif accumulateur d'énergie à butée d'amortissement Expired - Lifetime EP0696039B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9409732A FR2723252B1 (fr) 1994-08-01 1994-08-01 Mecanisme de disjoncteur equipe d'un dispositif a ccumulateur d'energie a butee d'amortissement
FR9409732 1994-08-01

Publications (2)

Publication Number Publication Date
EP0696039A1 EP0696039A1 (fr) 1996-02-07
EP0696039B1 true EP0696039B1 (fr) 1999-01-13

Family

ID=9466109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95410068A Expired - Lifetime EP0696039B1 (fr) 1994-08-01 1995-07-04 Mécanisme de disjoncteur équipé d'un dispositif accumulateur d'énergie à butée d'amortissement

Country Status (7)

Country Link
US (1) US5571255A (zh)
EP (1) EP0696039B1 (zh)
KR (1) KR100332720B1 (zh)
CN (1) CN1052330C (zh)
DE (1) DE69507218T2 (zh)
ES (1) ES2128685T3 (zh)
FR (1) FR2723252B1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10065090C1 (de) * 2000-12-21 2002-03-07 Siemens Ag Energiespeicher für den Antrieb eines beweglichen Kontaktes eines elektrischen Schalters

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4416091C1 (de) * 1994-04-20 1995-06-22 Siemens Ag Antriebsvorrichtung mit einer Sperrvorrichtung gegen ein Zurückprellen der Schaltwelle
JP3359560B2 (ja) * 1998-03-13 2002-12-24 寺崎電気産業株式会社 回路遮断器
US6072136A (en) * 1998-05-07 2000-06-06 Eaton Corporation Electrical switching apparatus with modular operating mechanism for mounting and controlling large compression close spring
US6423917B2 (en) 2000-03-17 2002-07-23 General Electric Company Self-disengaging circuit breaker motor operator
US6373010B1 (en) 2000-03-17 2002-04-16 General Electric Company Adjustable energy storage mechanism for a circuit breaker motor operator
US6559743B2 (en) 2000-03-17 2003-05-06 General Electric Company Stored energy system for breaker operating mechanism
FR2812760B1 (fr) * 2000-08-04 2002-09-13 Schneider Electric High Voltag Mecanisme de manoeuvre a chaine de traction pour un appareillage electrique de coupure haute tension
US6437269B1 (en) * 2001-08-07 2002-08-20 Eaton Corporation Spring powered electrical switching apparatus with anti-rollover cam
FR2836277B1 (fr) * 2002-02-19 2004-04-16 Alstom Mecanisme de commande a ressorts pour disjoncteur a mouvement rectiligne
FR2837619B1 (fr) * 2002-03-22 2004-06-25 Schneider Electric Ind Sa Appareillage electrique de coupure limiteur ultrarapide
DE20209550U1 (de) * 2002-06-14 2003-11-27 Siemens Ag Vorrichtung zum Stillsetzen einer Kurvenscheibe
DE10343348B4 (de) * 2003-09-12 2005-08-25 Siemens Ag Antriebsvorrichtung für einen Niederspannungs- Leistungsschalter
US7368677B2 (en) * 2005-12-14 2008-05-06 Eaton Corporation Reverse bias hatchet reset spring
US7633364B2 (en) * 2006-03-14 2009-12-15 Eaton Corporation Dampening apparatus and circuit interrupter including the same
KR200437402Y1 (ko) * 2006-10-17 2007-11-30 엘에스산전 주식회사 기중 차단기 및 그에 사용되는 차단스프링
FR2925210B1 (fr) * 2007-12-17 2010-01-15 Areva T&D Ag Commande compacte pour appareillage electrique moyennes et hautes tensions
DE102009035855B4 (de) * 2009-07-31 2011-12-08 Siemens Aktiengesellschaft Elektrisches Schaltgerät mit einem Sprungantrieb
US8063328B2 (en) * 2009-09-16 2011-11-22 Eaton Corporation Electrical switching apparatus and charging assembly therefor
EP2317528B1 (en) 2009-11-03 2014-02-26 ABB Technology AG A spring operated actuator for an electrical switching apparatus
EP2317529B1 (en) 2009-11-03 2017-04-19 ABB Schweiz AG A spring operated actuator for an electrical switching apparatus
EP2317530B1 (en) 2009-11-03 2014-02-26 ABB Technology AG A spring operated actuator for an electrical switching apparatus
KR101132909B1 (ko) * 2011-02-08 2012-04-03 엘에스산전 주식회사 회로차단기의 스프링 조작기
CN102779663B (zh) * 2012-07-16 2015-07-08 无锡市凯旋电机有限公司 一种用于电动操作机构的储能装置
JP5578217B2 (ja) * 2012-09-20 2014-08-27 株式会社安川電機 開閉器
CN103077860B (zh) * 2012-12-28 2015-02-25 常熟开关制造有限公司(原常熟开关厂） 漏电脱扣器
CN104425149B (zh) * 2013-08-30 2017-05-10 西门子公司 切换装置的弹性机构及其切换装置
EP3208817B1 (en) 2016-02-16 2018-11-14 ABB Schweiz AG A spring operated actuator for an electric apparatus
HUE043774T2 (hu) 2016-06-28 2019-09-30 Abb Schweiz Ag Rugóerejû mûködtetõ egység
CN106384684A (zh) * 2016-09-08 2017-02-08 国家电网公司 一种断路器分闸扇形板装置
FR3061249B1 (fr) * 2016-12-22 2020-05-22 Schneider Electric Industries Sas Dispositif de guidage d'un ressort dans un mecanisme de commande et appareil de protection electrique le comportant
FR3105565B1 (fr) * 2019-12-23 2022-01-14 Schneider Electric Ind Sas Appareil de coupure d’un courant électrique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1988610A (en) * 1933-04-27 1935-01-22 Westinghouse Electric & Mfg Co Operating mechanism for circuit breakers and the like
DE2603536C3 (de) * 1976-01-29 1978-08-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen Antriebsvorrichtung für elektrische Schaltgeräte
FR2558986B1 (fr) 1984-01-30 1986-11-21 Merlin Gerin Dispositif de commande d'un disjoncteur electrique
FR2589626B1 (fr) * 1985-10-31 1989-03-03 Merlin Gerin Mecanisme de commande d'un disjoncteur equipe d'un systeme accumulateur d'energie
KR910006799B1 (ko) * 1987-09-26 1991-09-02 미쓰비시전기 주식회사 차단기의 조작기구
US5004875A (en) * 1988-10-11 1991-04-02 Siemens Energy & Automation, Inc. Stored energy contact operating mechanism
US5322982A (en) * 1992-05-05 1994-06-21 Square D Company Fusible switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10065090C1 (de) * 2000-12-21 2002-03-07 Siemens Ag Energiespeicher für den Antrieb eines beweglichen Kontaktes eines elektrischen Schalters

Also Published As

Publication number Publication date
FR2723252B1 (fr) 1996-09-13
KR960008885A (ko) 1996-03-22
ES2128685T3 (es) 1999-05-16
FR2723252A1 (fr) 1996-02-02
DE69507218T2 (de) 1999-07-29
CN1119781A (zh) 1996-04-03
CN1052330C (zh) 2000-05-10
EP0696039A1 (fr) 1996-02-07
US5571255A (en) 1996-11-05
KR100332720B1 (ko) 2002-11-23
DE69507218D1 (de) 1999-02-25

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