EP1237169A1 - Disjoncteur à haute tension ayant une commande à ressorts avec un ressort additionnel de récuperation d'énergie - Google Patents
Disjoncteur à haute tension ayant une commande à ressorts avec un ressort additionnel de récuperation d'énergie Download PDFInfo
- Publication number
- EP1237169A1 EP1237169A1 EP02290446A EP02290446A EP1237169A1 EP 1237169 A1 EP1237169 A1 EP 1237169A1 EP 02290446 A EP02290446 A EP 02290446A EP 02290446 A EP02290446 A EP 02290446A EP 1237169 A1 EP1237169 A1 EP 1237169A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- circuit breaker
- lever
- additional
- movable contact
- 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
Links
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—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
- H01H2003/3084—Kinetic energy of moving parts recuperated by transformation into potential energy in closing or opening spring to be used in next operation
Definitions
- the invention relates to a high voltage electric circuit breaker, such than a self-blowing and compressed gas circuit breaker, comprising a breaking chamber with at least one movable contact in the chamber which is actuated by means of a mechanical spring control for open or close the circuit breaker, the control including at least one first spring exerting a force tending to move the movable contact to open the circuit breaker and a second spring exerting a tending force move the movable contact to close the circuit breaker while arming the first spring, and in which an additional spring is provided for exert an additional force which accumulates with the force exerted by the first spring at the start of circuit breaker opening.
- An object of the invention is to propose a particular arrangement a circuit breaker as defined above, which does not require energy additional to arm the additional spring when closing.
- Another object of the invention is to propose an arrangement particular of such a circuit breaker which also makes it possible to recover and store some of the kinetic energy of the moving contact at the end opening or closing, to use it respectively at the start of a subsequent closing or opening operation.
- the invention relates to an electric circuit breaker comprising a switching chamber with at least one movable contact in the chamber which is actuated by means of a mechanical control with springs to open or close the circuit breaker, the control including minus a first spring exerting a force tending to move the movable contact to open the circuit breaker and a second operating spring a force tending to move the movable contact to close the circuit breaker while arming the first spring, and in which an additional spring is intended to exert additional force which is added to the force exerted by the first spring at the start of the opening of the circuit breaker, characterized in that the additional spring is mounted in such a way that before the breaker opens, the result of the force exerted by the additional spring to move the movable contact reverses to oppose the movement of the movable contact.
- the additional spring is armed by the displacement of the movable contact and it is therefore not necessary to use part of the energy of the second spring of the command to reset the additional spring when closing the breaker.
- the movable contact moving essentially due to its own kinetic energy at the end of opening, the additional spring can serve to recover and store part of this kinetic energy which otherwise is conventionally consumed in a damping device.
- the control comprises a rotary shaft coupled in motion in moving contact and rotated alternately by the first or the second spring.
- the additional spring is coupled to the rotating shaft by means of a lever fixed to the shaft and occupying two positions extreme angles corresponding to the positions of the movable contact when the circuit breaker is respectively open or closed.
- Strength exerted by the additional spring on the lever is oriented in such a way that its rotational component changes direction when the lever passes by an intermediate angular position by moving from one position extreme angular towards the other extreme angular position. So the lever works like a pendulum with the additional spring.
- the result of the force exerted by the additional spring is cumulates that of the force exerted by the first spring, which tends to accelerate the speed of movement of the moving contact.
- the result of the force exerted by the additional spring is accumulates that of the force exerted by the second spring, so that it is possible to decrease the energy of the control needed to switch on the circuit breaker.
- the additional spring is coupled to the lever via a return pulley which allows to have the additional spring proximity to the circuit breaker breaking chamber to reduce the size of the circuit breaker.
- This additional spring is preferably always armed in compression.
- the lever connected to the additional spring is a lever in the form of triangle having a vertex merging with the rotating shaft, two others vertices being respectively coupled to the movable contact and to the spring additional.
- circuit breaker An embodiment of the circuit breaker according to the invention is described below in more detail and illustrated in the drawings.
- FIG. 1 very schematically represents a circuit breaker according to the invention in the closed position.
- FIG. 2 very schematically represents the circuit breaker of the Figure 1 but in the open position.
- the reference 1 designates a breaking of a circuit breaker, for example a self-blowing breaking chamber and reduced gas compression of an electric circuit breaker.
- the interrupting chamber is generally filled with a dielectric gas under a pressure of a few bars, like SF6.
- Reference 2 designates a movable mounted contact, for example in translation, in the breaking chamber.
- This mobile contact 2 is moved by a mechanical spring control 3 to open or close the breaker.
- the command 3 comprises in particular a main rotary shaft 4 on which is fixed a drive lever 5 which is coupled to the movable contact 2 by a articulated mechanical connection 6 so that the rotational movement of the shaft 4 and therefore of the lever 5 is transformed for example into a translational movement of the movable contact 2 in the chamber 1.
- Reference 7 designates the trigger spring of the command 3 used to open the circuit breaker.
- Spring 7 works on the shaft 4 by means of a lever 8 integral with the shaft 4 and a chain 9 stretched between the free end of the lever 8 and the spring 7.
- the spring 7 In closed position of the circuit breaker, as shown in figure 1, the spring 7 is armed and exerts a restoring torque on the lever 8 tending to rotate the shaft 4 in the direction indicated by the arrow O.
- a CO release trigger is provided to block the rotation of the shaft 4 when the circuit breaker is closed. After an order opening of the circuit breaker, this CO ratchet is unlocked, which causes the shaft 4 to rotate and the angular displacement of the lever 5, displacement which is transformed by link 6 into a movement of translation of the moving contact 2.
- the mechanical control 3 also includes a system for closing of the circuit breaker, which in particular comprises a spring 10 working on an engagement shaft 11 by means of a wheel with crank 12 secured to the shaft 11.
- This crank wheel 12 is a toothed wheel which comprises a crank pin 13 connected by a chain 14 with spring 10. It is here coupled to an electric motor 15 via a gear train 16, the motor 15 serving to arm spring 10 after closing the circuit breaker.
- Tree 11 bears an engagement cam 17 on which a lever comes to engage roller 18 secured to the shaft 4.
- a pawl lockable release CF is provided to block the rotation of the engagement shaft 11.
- this CF ratchet is unlocked, which causes the shaft 11 to rotate and the angular displacement of the cam 17 in the direction of the arrow F.
- the rotational movement of the cam 17 is transmitted to the roller lever 18, which causes the rotation of the shaft 4 in the opposite direction to the arrow O.
- the spring 7, which was relaxed in the open position of the circuit breaker, is new armed when closing the circuit breaker due to rotation of tree 4.
- the circuit breaker is then closed and the rotation of the shaft 4 is blocked by the CO trigger pawl.
- the spring 10 is then put back under tension using the motor 15 and the rotation of the shaft 11 is blocked by the CF catch pawl.
- the position of control 3 is then that of FIG. 1. In this position, the command 3 is ready for a circuit breaker opening opening closing sequence.
- spring 7 relaxes and exerts a restoring force rotating the shaft 4 in the direction indicated by the arrow O which causes movement of the movable contact 2 leading to opening complete with circuit breaker.
- Kinetic energy of the remaining mobile contact available at the end of opening is consumed in a damper 19 coupled to the shaft 4.
- the circuit breaker is closed by unlocking the pawl CF, which causes the spring 10 to relax and causes the rotation of the shaft 11 in the direction of the arrow F.
- the rotational movement of the shaft 11 is transmitted to the shaft 4 via the cam 17 and the lever 18, but in opposite direction, which simultaneously causes the contact to move mobile 2 to a fully closed position of the circuit breaker and the tensioning of the spring 7 via the lever 8.
- the spring 10 is then re-energized using the motor 15 as indicated above.
- an additional spring 20 is coupled to the shaft 4 to exert on the latter a couple of recall contributing on the one hand to displacement of the movable contact at the start of opening of the circuit breaker and on the other hand to the slowing down of this displacement at the end of opening.
- the spring 20 is coupled to the shaft 4 via the lever 5 which is here a triangle-shaped lever having a vertex confused with the tree 4 and two other vertices respectively coupled with movable contact 2 and additional spring 20.
- the apex P of the lever 5 coupled to the spring 20 occupies two extreme angular positions corresponding respectively to the two positions of movable contact 2 when the circuit breaker is completely closed or fully open.
- the additional spring 20 is armed to the maximum.
- the extreme angular position of the lever 5 corresponding to complete closing of the circuit breaker is indicated by the reference E1 while the other extreme angular position of the lever 5 corresponding to the full opening of the circuit breaker is indicated by the reference E0 in FIG. 2.
- the angular travel of the lever 5 and therefore from the vertex P is about 60 °.
- the force vector exerted by the spring always has the same direction since the spring 20 is always armed either in compression either in tension.
- the spring 20 is always more or less armed in compression.
- the strength exerted by the spring 20 always has the same meaning, the result of this force exerts a torque on the shaft 4 and changes direction between the extreme positions E1 and E0. Indeed, there is an angular position intermediate I, also called neutral position, for which the resulting or rotational component of the force exerted by the spring 20 on lever 5 is canceled to change direction when lever 5 is moved from one extreme angular position to the other angular position extreme.
- the spring 20 When the lever 5 moves from the extreme angular position to the other extreme position, during an opening or closing phase, the spring 20 first relaxes until lever 5 passes through its intermediate angular position PM. During this first trip angle of the lever 5, the restoring torque exerted by the spring 20 on the rotary shaft 4 is added to that exerted by the spring 7 on this same shaft 4, and contributes to driving the shaft 4 in rotation. After crossing by the lever 5 from its neutral position, the spring 20 is gradually armed since the return torque which it exerts on the lever 5 is reversed. The spring 20 then opposes the angular movement of the lever 5 and therefore the moving the moving contact 2.
- the intermediate angular position of the lever 5 is chosen such that so that during its displacement from its angular position intermediate PM towards its extreme angular position E0 during a phase opening of the circuit breaker, spring 2 accumulates and stores part of kinetic energy of the moving contact which is normally consumed in the damper 19 at the end of opening.
- the energy stored in the spring 20 at the end of the opening is returned at the start of the subsequent closure and is added to that provided by spring 10 for drive the shaft 4 in rotation.
- the energy stored by the spring 20 at the end of closing is returned at the start of the phase subsequent opening and is added to that provided by spring 7 for drive the shaft 4 in rotation.
- the additional spring 20 is armed at its maximum at the end of each opening or closing operation, thanks kinetic energy of the moving contact 2.
- the spring 20 is adequately calibrated against release springs 7 and interlock 10 so that it can be armed until the lever 5 occupies an extreme angular position.
- the spring 20 is disposed inside the mechanical control 3, and is coupled to lever 5 by a chain engaged on a return pulley 21. Such an arrangement allows place the spring 20 near the breaking chamber to decrease the size of the circuit breaker.
- Lever 5 can also be coupled to spring 20 by an articulated connection.
Abstract
Description
Claims (5)
- Un disjoncteur électrique comprenant une chambre de coupure (1) avec au moins un contact mobile (2) dans la chambre qui est actionné au moyen d'une commande mécanique à ressorts (3) pour ouvrir ou fermer le disjoncteur, la commande incluant au moins un premier ressort (7) exerçant une force tendant à déplacer le contact mobile pour ouvrir le disjoncteur et un second ressort (10) exerçant une force tendant à déplacer le contact mobile pour fermer le disjoncteur tout en armant le premier ressort (7), et dans lequel un ressort additionnel (20) est prévu pour exercer une force supplémentaire qui se cumule à la force exercée par le premier ressort (7) au début de l'ouverture du disjoncteur, caractérisé en ce que le ressort additionnel (20) est monté de telle façon qu'avant la fin de l'ouverture du disjoncteur, la résultante de la force exercée par le ressort additionnel pour déplacer le contact mobile s'inverse pour s'opposer au déplacement du contact mobile.
- Le disjoncteur selon la revendication 1, dans lequel la commande comprend un arbre rotatif (4) couplé en mouvement au contact mobile (2) et entraíné en rotation alternativement par le premier (7) et le second ressort (10) et dans lequel le ressort additionnel (20) est accouplé à l'arbre rotatif (4) par l'intermédiaire d'un levier (5) fixé à l'arbre rotatif et occupant deux positions angulaires extrêmes (E0,E1) correspondant aux positions du contact mobile quand le disjoncteur est respectivement ouvert ou fermé, la force exercée par le ressort additionnel (20) sur le levier (5) étant orientée de telle façon que sa composante rotationnelle change de sens quand le levier (5) passe par une position angulaire intermédiaire (PM) en se déplaçant d'une position angulaire extrême vers l'autre position angulaire extrême.
- Le disjoncteur selon la revendication 2, dans lequel le ressort additionnel (20) est couplé au levier (5) par l'intermédiaire d'une poulie de renvoi (21).
- Le disjoncteur selon la revendication 3, dans lequel le ressort additionnel (20) est armé en compression.
- Le disjoncteur selon l'une des revendications 2 à 4, dans lequel ledit levier (5) est un levier en forme de triangle ayant un sommet confondu avec l'arbre rotatif et deux autres sommets respectivement couplés au contact mobile (2) et au ressort additionnel (20).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0102784 | 2001-03-01 | ||
FR0102784A FR2821696B1 (fr) | 2001-03-01 | 2001-03-01 | Disjoncteur haute tension ayant une commande a ressorts avec un ressort additionnel de recuperation d'energie |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1237169A1 true EP1237169A1 (fr) | 2002-09-04 |
EP1237169B1 EP1237169B1 (fr) | 2010-04-07 |
Family
ID=8860596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02290446A Expired - Lifetime EP1237169B1 (fr) | 2001-03-01 | 2002-02-22 | Disjoncteur à haute tension ayant une commande à ressorts avec un ressort additionnel de récuperation d'énergie |
Country Status (4)
Country | Link |
---|---|
US (1) | US6667452B2 (fr) |
EP (1) | EP1237169B1 (fr) |
DE (1) | DE60235855D1 (fr) |
FR (1) | FR2821696B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101640134A (zh) * | 2008-08-01 | 2010-02-03 | Abb技术股份有限公司 | 凸轮盘和弹簧变位开关以及弹簧式蓄能驱动装置 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7368677B2 (en) * | 2005-12-14 | 2008-05-06 | Eaton Corporation | Reverse bias hatchet reset spring |
EP2317529B1 (fr) | 2009-11-03 | 2017-04-19 | ABB Schweiz AG | Actionneur fonctionnant à ressort pour appareil de commutation électrique |
EP2317530B1 (fr) | 2009-11-03 | 2014-02-26 | ABB Technology AG | Actionneur fonctionnant à ressort pour appareil de commutation électrique |
EP2317528B1 (fr) | 2009-11-03 | 2014-02-26 | ABB Technology AG | Actionneur fonctionnant à ressort pour appareil de commutation électrique |
WO2013057936A1 (fr) * | 2011-10-21 | 2013-04-25 | 株式会社 東芝 | Disjoncteur à gaz |
CN104952650B (zh) * | 2014-03-31 | 2018-02-23 | 西门子公司 | 用于气体绝缘断路器中储能装置的离合机构及其气体绝缘断路器 |
US9373456B2 (en) | 2014-04-24 | 2016-06-21 | Eaton Corporation | Circuit breakers with clock spring drives and/or multi-lobe drive cams and related actuators and methods |
US9472359B2 (en) | 2014-04-24 | 2016-10-18 | Eaton Corporation | Trip latch assemblies for circuit breakers and related circuit breakers |
EP3208817B1 (fr) | 2016-02-16 | 2018-11-14 | ABB Schweiz AG | Actionneur à ressort pour un appareil électrique |
DE102016210466B4 (de) * | 2016-06-14 | 2019-11-14 | Siemens Aktiengesellschaft | Federspeicherantrieb für einen Hochspannungs-Leistungsschalter und Verfahren zum Betrieb des Federspeicherantriebs |
HUE043774T2 (hu) * | 2016-06-28 | 2019-09-30 | Abb Schweiz Ag | Rugóerejû mûködtetõ egység |
DE102019204443A1 (de) * | 2019-03-29 | 2020-10-01 | Siemens Aktiengesellschaft | Stromunterbrechersystem |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE756085C (de) * | 1940-07-27 | 1953-02-02 | Siemens Schuckertwerke A G | Antrieb mit Energiespeicher fuer Geraete mit durch Stillstandspausen getrennter Hin-und Rueckbewegung, z. B. fuer elektrische Schalter |
GB708191A (en) * | 1951-04-23 | 1954-04-28 | Reyrolle A & Co Ltd | Improvements relating to spring-closed electric circuit-breakers |
FR2398378A1 (fr) * | 1977-07-21 | 1979-02-16 | Mitsubishi Electric Corp | Interrupteur de circuit |
EP0658909A1 (fr) * | 1993-12-13 | 1995-06-21 | GEC Alsthom T&D AG | Dispositif d'entraînement pour un disjoncteur de puissance |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3874500D1 (de) * | 1987-12-14 | 1992-10-15 | Sprecher Energie Ag | Federkraftspeicherantrieb fuer einen hochspannungsschalter. |
FR2763740B1 (fr) * | 1997-05-26 | 1999-07-16 | Gec Alsthom T & D Ag | Mecanisme d'entrainement a ressort pour un appareil de commutation, en particulier un disjoncteur |
FR2770929B1 (fr) * | 1997-11-13 | 2000-01-28 | Alsthom Gec | Mecanisme d'entrainement a ressort pour un appareil de commutation, en particulier un disjoncteur |
-
2001
- 2001-03-01 FR FR0102784A patent/FR2821696B1/fr not_active Expired - Fee Related
-
2002
- 2002-02-22 DE DE60235855T patent/DE60235855D1/de not_active Expired - Lifetime
- 2002-02-22 EP EP02290446A patent/EP1237169B1/fr not_active Expired - Lifetime
- 2002-02-26 US US10/082,317 patent/US6667452B2/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE756085C (de) * | 1940-07-27 | 1953-02-02 | Siemens Schuckertwerke A G | Antrieb mit Energiespeicher fuer Geraete mit durch Stillstandspausen getrennter Hin-und Rueckbewegung, z. B. fuer elektrische Schalter |
GB708191A (en) * | 1951-04-23 | 1954-04-28 | Reyrolle A & Co Ltd | Improvements relating to spring-closed electric circuit-breakers |
FR2398378A1 (fr) * | 1977-07-21 | 1979-02-16 | Mitsubishi Electric Corp | Interrupteur de circuit |
EP0658909A1 (fr) * | 1993-12-13 | 1995-06-21 | GEC Alsthom T&D AG | Dispositif d'entraînement pour un disjoncteur de puissance |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101640134A (zh) * | 2008-08-01 | 2010-02-03 | Abb技术股份有限公司 | 凸轮盘和弹簧变位开关以及弹簧式蓄能驱动装置 |
CN101640134B (zh) * | 2008-08-01 | 2014-06-25 | Abb技术股份有限公司 | 凸轮盘和弹簧变位开关以及弹簧式蓄能驱动装置 |
Also Published As
Publication number | Publication date |
---|---|
DE60235855D1 (de) | 2010-05-20 |
US20020121503A1 (en) | 2002-09-05 |
FR2821696A1 (fr) | 2002-09-06 |
EP1237169B1 (fr) | 2010-04-07 |
FR2821696B1 (fr) | 2003-04-25 |
US6667452B2 (en) | 2003-12-23 |
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