EP1054419A1 - Sectionneur haute tension à contact mobile déplacé à grande vitesse - Google Patents
Sectionneur haute tension à contact mobile déplacé à grande vitesse Download PDFInfo
- Publication number
- EP1054419A1 EP1054419A1 EP00401303A EP00401303A EP1054419A1 EP 1054419 A1 EP1054419 A1 EP 1054419A1 EP 00401303 A EP00401303 A EP 00401303A EP 00401303 A EP00401303 A EP 00401303A EP 1054419 A1 EP1054419 A1 EP 1054419A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- piston
- spring
- movable
- disconnector
- 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
Images
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
- H01H3/3052—Linear spring motors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
- H01H31/32—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with rectilinearly-movable contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
- H01H5/04—Energy stored by deformation of elastic members
- H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs
Definitions
- An electrical disconnector comprising a first contact which is mounted movable in an axial direction relative to a second fixed contact and which cooperates with the latter to establish a connection electric, a rod which extends in said axial direction and which is maneuvered to move the first contact relative to the second contact.
- a high voltage electric disconnector comprising a metal casing in which the contacts are arranged mobile and fixed, this envelope being filled with a dielectric gas like SF6.
- the movable contact operating rod crosses tightly the metal casing and is usually moved in translation by a mechanical control.
- Patent application EP348645 discloses a two-contact disconnector mobiles formed by two coaxial cylinders and moved to connect successively to a fixed arcing contact and a fixed permanent contact (ensuring the passage of the permanent current).
- the contact control mechanism mobile uses two aligned coil springs, separated by a collar attached to an operating rod which is coaxial to them.
- the disconnector arrangement disclosed makes it possible to have a speed of movement of the movable contacts well faster than that of the operating rod during the operations of closing or opening of the electrical connection.
- the device mentioned due to the arrangement of its fixed contacts, does not allow electric arcs to strike only on the fixed arcing contact. Indeed, the insulation distance between the movable arcing contact and the fixed permanent contact may become insufficient if the voltage exceeds a certain threshold, in which case it arcing can occur between these contacts, resulting in overvoltages damaging because not attenuated by any resistance.
- the invention has object an electrical disconnector comprising a first contact which is mounted movable in an axial direction relative to a second fixed contact and which cooperates with the latter to establish an electrical connection, a rod which extends in said axial direction and which is maneuvered to move the contact movable with respect to the fixed contact, characterized in that the contact movable is a hollow tube having one end which faces the fixed contact and a second end opposite the first end, in that it comprises a piston sliding inside the movable contact, the piston being mounted on the rod and having a first side oriented on the side of the fixed contact and a second side opposite the first side, in that a first spring is interposed between the first end of the movable contact and the first side of the piston, in that a second spring is interposed between the second end of the movable contact and the second side of the piston, in that a first locking system is provided to immobilize the movable contact in the axial direction during a closing operation at the same
- This device allows in particular the rapid switching of high voltages while ensuring the passage of strong currents.
- Figures 1a to 1e schematically illustrate the operation of the disconnector according to the invention during a connection closure phase electric.
- FIGS 2a to 2e illustrate schematically the operation of the disconnector according to the invention during an opening phase of the connection electric.
- Figure 3 is a detail representation in longitudinal section of a exemplary embodiment of a disconnector according to the invention in which the rod operation is a worm.
- Figure 4 is a detail representation in longitudinal section of a exemplary embodiment of a disconnector according to the invention in which the contact fixed is equipped with resistors.
- the electric disconnector according to the invention is a high voltage disconnector comprising, in a cylindrical metallic envelope (not shown on the drawings) which extends in an axial direction A and which is filled with a insulation gas like SF6, a contact 1 which is fixedly mounted and which is hollow example and a contact 2 mounted movable in the axial direction by report to the fixed contact.
- the movable contact is for example in the form of a rod, is coaxial with fixed contact 1 and is inserted into the hollow fixed contact to establish an electrical connection.
- the disconnector also includes a rod 3 coaxial with the contacts 1 and 2, which extends in the axial direction A and which is maneuvered to move the contact 2 compared to contact 1.
- the movable contact 2 is guided in displacement according to the axial direction by a fixed tube 4 coaxial with the operating rod 3.
- the movable contact 2 is a hollow cylindrical tube having a first end 2A which faces fixed contact 1 and a second end 2B opposite the end 2A crossed by the operating rod 3.
- a piston 5 is arranged sliding inside the contact 2; it has a first side 5A oriented on the contact side 1 and a second side 5B opposite the side 5A.
- the piston 5 is fixed to the end of the rod 3 which slides in contact 2.
- the rod 3 can be a worm and the piston 5 can in this case be a nut.
- the other end of the rod 3 is connected to the disconnector control (not shown) which acts here to move in translation the rod 3 in the direction axial A.
- the control acts to move the rod 3 and therefore the piston 5 towards the fixed contact 1 and during an opening operation of the disconnector, the command acts to move the rod 3 and therefore the piston 5 in the opposite direction.
- the disconnector further comprises a first locking system 8, of the type retractable ball, which immobilizes contact 2 in the axial direction when the rod 3 is operated during a closing operation of the disconnector, in at the same time as the first spring 6 is compressed between the piston and the first end 2A of contact 2.
- This first locking system disappears after a certain compression of the first spring 6 so that contact 2 is connected at high speed with contact 1 under the effect of spring 6 rests against the piston 5.
- the disconnector also comprises a second locking system 9 which immobilizes the contact 2 in the axial direction when the rod 3 is operated during a disconnector opening operation, at the same time that the spring 7 is compressed between the piston 5 and the second end 2B of the contact 2.
- This second locking system disappears after a certain compression of the spring 7 so that the contact 2 is disconnected from the contact 1 at high speed under the effect of the relaxation of the spring 7 by pressing against piston 5.
- the disconnector according to the invention is in the open position complete.
- the spring 7 is compressed between the piston 5 and the end 2B of the contact 2.
- the spring 6 is completely relaxed between the end 2A of the contact 2 and the piston 5.
- Contact 2 is immobilized in the axial direction A in the guide tube 4 by the retractable ball locking system 8 who is armed here.
- the rod 3 is moved by an operation in translation in direction fixed contact 1 as indicated by the arrow on the piston 5; she trains the piston 5 in this direction so that the spring 6 is compressed by the piston 5 against the end 2A of contact 2 while the spring 7 is relaxed.
- contact 2 is inserted at high speed into fixed contact 1 under the action of the spring 6 which relaxes between the piston 5 and the end 2A of the contact 2.
- the piston 5 continues to be moved towards the fixed contact 1 and the second ball locking system 9 is armed to immobilize the next contact 2 the axial direction A in the guide tube 4.
- the movable contact 2 therefore moved independently of the operating rod 3 and the piston 5.
- the speed of translational movement of the operating rod 3 and therefore of the piston 5 can so be much smaller than the speed of movement of the contact mobile 2.
- the speed of movement of the operating rod 3 and therefore of the piston 5 can also be constant unlike the speed of moving the moving contact 2.
- the end of the closing operation of the disconnector can be controlled by detecting the extreme position of the piston 5 and rod 3.
- the disconnector In FIG. 2a, the disconnector is in a fully closed position which corresponds to that illustrated in FIG. 1e.
- Contact 2 is immobilized in displacement in the axial direction A in the guide tube 4 because the locking system 9 is armed.
- the rod 3 is moved by translation from the fixed contact 1 as indicated by the arrow on piston 5; it drives the piston 5 in the same direction which causes the spring 7 to be compressed by the piston 5 against the end 2B of the contact 2 while the spring 6 is relaxed.
- contact 2 disengages at high speed from fixed contact 1 under the action of the spring 7 which relaxes between the piston 5 and the end 2B of the contact 2.
- the piston 5 continues to be distant from the fixed contact 1 and the first ball locking system 8 is armed to immobilize contact 2 in the axial direction A in the guide tube 4.
- Figure 3 shows in more detail in longitudinal section along the direction axial A exemplary embodiment of a disconnector according to the invention.
- the operating rod 3 is a rotary endless screw axis of rotation A.
- the piston 5 is a nut in which the screw is engaged worm 3. According to the direction of rotation of the worm 3, the nut 5 moves in translation (without possibility of rotation) in one direction or the other following the axial direction A inside the movable contact 2.
- the spring 6 and the spring 7 are arranged the spring 6 and the spring 7 with spirals.
- Figure 3 shows the disconnector in the fully open position, spring 7 being compressed between the nut 5 and the end 2B of the movable contact 2.
- a cylindrical slide 10 is disposed inside the contact 2 coaxially with the nut 5.
- This drawer slides on the nut 5 and acts on retractable balls 8 and 9 of the locking systems housed in radial openings 11 of the contact 2. It consists more particularly of two half-drawers 10A and 10B independent of each other in displacement in the axial direction A.
- the half-drawer 10A has a radial end rib 12A on which abuts the nut 5 when the latter is moved towards the fixed contact 1.
- the half-drawer 10B also has a radial end rib 12B on which abuts the nut 5 when the latter is distant from the fixed contact 1.
- a spiral spring 13 is disposed between the end rib 12A of the half-drawer 10A and a shoulder 2AA provided at the end 2A of contact 2 and another coil spring 14 is disposed between the end rib 12B of the half-drawer 10B and a shoulder 2BB provided at the end 2B of contact 2; these springs 13 and 14 serve to recall the half-drawers 10A and 10B into position when the nut 5 is located in the radial direction between the ribs 12A and 12B.
- the guide tube 4 has a first obviously 15 in which the ball 8 can engage and a second recess 16 in which the ball 9 can engage; these two recesses 15 and 16 are spaced from each other in the axial direction A.
- the half-drawer 10A has a first obviously 17 in which the ball 8 can be erased and the half-drawer 10B has a second obviously 18 in which can erase ball 9; these two recesses 17 and 18 are distant from each other in the axial direction A.
- the ball 8 When the ball 8 is engaged in the recess 15 of the tube 4, it locks the displacement of contact 2 in the axial direction A and when the rib 12A of the half-drawer 10A is pushed by the nut 5 during the closing phase of the disconnector, the ball 8 comes opposite the recess 17 in which it can erase to release the movement of the movable contact 2. Furthermore, when the ball 9 is engaged in the recess 16 of the tube 4, it locks the displacement of contact 2 in the axial direction A and when the rib 12B of the half-drawer 10B is pushed by the nut 5 during the opening phase of the disconnector, the ball 9 comes in front of the recess 18 in which it can erase to release the movement of the movable contact 2.
- the fixed contact 1 ′ is equipped with resistors R making it possible to obtain a particularly effective device to protect the connected equipment against transient overvoltages at very high frequencies when switching the disconnector on capacitive current.
- the fixed contact 1 ′ comprises an arcing contact or cover 21 directly and only connected to resistors R. This cover has angles rounded giving a corona effect, and an internal diameter slightly larger than the diameter of the moving contact 2, so that the moving contact does not do not touch the cover during insertion.
- permanent contact 22 accommodates conventionally along its axis of symmetry a retractable arcing contact 24 formed of a conductive rod coupled to a spring.
- This rod too shown in fixed contact 1 in Figure 3, is made of a material not very sensitive to heating, and can withstand a strong current when the movable contact 2 pushes it.
- the heating produced is limited by the fact that the connection of the movable contact to the permanent current contact 22 is performed very soon after.
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Circuit Breakers (AREA)
Abstract
Description
Claims (5)
- Sectionneur électrique comprenant un premier contact (2) qui est monté mobile suivant une direction axiale (A) par rapport à un second contact (1) fixe suivant cette direction et qui coopère avec ce dernier pour établir une connexion électrique, une tige (3) qui s'étend suivant ladite direction axiale et qui est manoeuvrée pour déplacer le contact mobile par rapport au contact fixe, caractérisé en ce que le contact mobile est un tube creux ayant une extrémité (2a) qui fait face au contact fixe et une seconde extrémité (2b) opposée à la première extrémité, en ce qu'il comprend un piston (5) coulissant à l'intérieur du contact mobile, le piston (5) étant monté sur la tige (3) et ayant un premier côté orienté du côté du contact fixe et un second côté opposé au premier côté, en ce qu'un premier ressort (6) est interposé entre la première extrémité du contact mobile et le premier côté du piston, en ce qu'un second ressort (7) est interposé entre la seconde extrémité du contact mobile et le second côté du piston, en ce qu'un premier système de verrouillage (8) est prévu pour immobiliser le contact mobile suivant la direction axiale lors d'une opération de fermeture du sectionneur en même temps que le premier ressort est comprimé entre le piston et la première extrémité du contact mobile, ce premier système de verrouillage s'effaçant après une certaine compression du premier ressort de telle façon que le contact mobile est connecté au contact fixe sous l'effet de la détente du premier ressort, et en ce qu'un second système de verrouillage (9) est prévu pour immobiliser le contact mobile suivant la direction axiale lors d'une opération d'ouverture en même temps que le second ressort est comprimé entre le piston et la seconde extrémité du contact mobile, ce second système de verrouillage s'effaçant après une certaine compression du second ressort de telle façon que le contact mobile est déconnecté du contact fixe sous l'effet de la détente du second ressort.
- Sectionneur selon la revendication 1, dans lequel le premier et le second système de verrouillage sont des billes escamotables.
- Sectionneur selon l'une des revendications 1 ou 2, dans lequel la tige de manoeuvre est une vis sans fin et le piston est un écrou dans lequel est engagée la vis sans fin.
- Sectionneur selon l'une des revendications 1 ou 2, dans lequel la tige de manoeuvre est manoeuvrée en translation et le piston est fixé à une extrémité de la tige.
- Sectionneur selon l'une des revendications 1 à 4, dans lequel le contact fixe comprend un contact de courant permanent (22) ainsi qu'un contact d'arc (21) connecté à des résistances, et dans lequel le courant produit par l'amorçage d'arcs électriques (20) lors du rapprochement du contact mobile passe entièrement par ces résistances.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9906212A FR2793945B1 (fr) | 1999-05-17 | 1999-05-17 | Sectionneur haute tension a contact mobile deplace a grande vitesse |
| FR9906212 | 1999-05-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1054419A1 true EP1054419A1 (fr) | 2000-11-22 |
| EP1054419B1 EP1054419B1 (fr) | 2006-08-16 |
Family
ID=9545641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00401303A Expired - Lifetime EP1054419B1 (fr) | 1999-05-17 | 2000-05-12 | Sectionneur haute tension à contact mobile déplacé à grande vitesse |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6466420B1 (fr) |
| EP (1) | EP1054419B1 (fr) |
| JP (1) | JP2000353457A (fr) |
| KR (1) | KR20010020851A (fr) |
| CN (1) | CN1171264C (fr) |
| DE (1) | DE60030032T2 (fr) |
| FR (1) | FR2793945B1 (fr) |
| ID (1) | ID26059A (fr) |
| TW (1) | TW476080B (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2544203A1 (fr) * | 2011-07-04 | 2013-01-09 | ABB Technology AG | Séparateur de charge haute tension électrique et procédé d'ouverture de celui-ci |
| EP2741305A1 (fr) * | 2012-12-07 | 2014-06-11 | ABB Technology AG | Séparateur haute tension |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4649739B2 (ja) * | 2001-01-09 | 2011-03-16 | ソニー株式会社 | 冷陰極電界電子放出素子の製造方法 |
| KR100797982B1 (ko) * | 2003-04-23 | 2008-01-24 | 현대중공업 주식회사 | 고전압 단로기 |
| US7630189B2 (en) * | 2007-05-17 | 2009-12-08 | Energie H.T. International Inc. | High voltage disconnecting switch control |
| US7999416B2 (en) * | 2008-04-14 | 2011-08-16 | Emergie H. T. International Inc. | Module for controlling a switch in a high voltage electrical substation |
| ATE544169T1 (de) * | 2008-12-18 | 2012-02-15 | Abb Technology Ag | Kurzschlussvorrichtung für mittel- und hochspannungsschaltvorrichtungen |
| FR2984590B1 (fr) * | 2011-12-14 | 2014-07-04 | Alstom Technology Ltd | Ensemble conducteur mobile pour sectionneur, comprenant un ressort permettant d'accelerer la separation des contacts d'arc |
| JP5153971B1 (ja) * | 2012-04-10 | 2013-02-27 | 三菱電機株式会社 | 電力用開閉装置 |
| EP2728602B1 (fr) | 2012-11-05 | 2015-01-21 | ABB Technology AG | Séparateur de charge haute tension électrique et procédé d'ouverture de celui-ci |
| DE102020211951B4 (de) * | 2020-09-24 | 2024-02-08 | Siemens Energy Global GmbH & Co. KG | Kurzschluss-Schalteinrichtung |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE789990A (fr) * | 1972-10-12 | 1973-04-12 | Gardy | Dispositif de deplacement lineaire rapide d'un element, |
| US3811022A (en) * | 1973-01-09 | 1974-05-14 | Westinghouse Electric Corp | Vacuum switch drive mechanism |
| DE2758264A1 (de) * | 1977-12-27 | 1979-07-05 | Bbc Brown Boveri & Cie | Antriebsvorrichtung fuer einen elektrischen schalter |
| EP0348645A2 (fr) * | 1988-07-01 | 1990-01-03 | Licentia Patent-Verwaltungs-GmbH | Dispositif pour la coupure et le branchement rapide de petits courants pour sectionneurs d'appareillage de commutation entièrement isolé |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4414449A (en) * | 1981-05-26 | 1983-11-08 | Brown Boveri Electric Inc. | Quick open and close disconnect switch |
| US4636602A (en) * | 1985-04-10 | 1987-01-13 | S&C Electric Company | Linear operating mechanism for electrical switches |
| FR2746540B1 (fr) * | 1996-03-22 | 1998-04-24 | Gec Alsthom T & D Sa | Commande pour disjoncteur a haute tension |
| FR2747502B1 (fr) * | 1996-04-10 | 1998-05-15 | Gec Alsthom T & D Sa | Commande a ressorts rectilignes pour disjoncteur a haute tension |
| FR2748597B1 (fr) * | 1996-05-13 | 1998-06-12 | Gec Alsthom T & D Sa | Disjoncteur a haute tension avec insertion de resistance a la fermeture |
-
1999
- 1999-05-17 FR FR9906212A patent/FR2793945B1/fr not_active Expired - Fee Related
-
2000
- 2000-05-12 EP EP00401303A patent/EP1054419B1/fr not_active Expired - Lifetime
- 2000-05-12 DE DE60030032T patent/DE60030032T2/de not_active Expired - Lifetime
- 2000-05-16 TW TW089109369A patent/TW476080B/zh not_active IP Right Cessation
- 2000-05-16 US US09/571,895 patent/US6466420B1/en not_active Expired - Fee Related
- 2000-05-17 CN CNB001192051A patent/CN1171264C/zh not_active Expired - Fee Related
- 2000-05-17 KR KR1020000026494A patent/KR20010020851A/ko not_active Withdrawn
- 2000-05-17 ID IDP20000413A patent/ID26059A/id unknown
- 2000-05-17 JP JP2000145326A patent/JP2000353457A/ja not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE789990A (fr) * | 1972-10-12 | 1973-04-12 | Gardy | Dispositif de deplacement lineaire rapide d'un element, |
| US3811022A (en) * | 1973-01-09 | 1974-05-14 | Westinghouse Electric Corp | Vacuum switch drive mechanism |
| DE2758264A1 (de) * | 1977-12-27 | 1979-07-05 | Bbc Brown Boveri & Cie | Antriebsvorrichtung fuer einen elektrischen schalter |
| EP0348645A2 (fr) * | 1988-07-01 | 1990-01-03 | Licentia Patent-Verwaltungs-GmbH | Dispositif pour la coupure et le branchement rapide de petits courants pour sectionneurs d'appareillage de commutation entièrement isolé |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2544203A1 (fr) * | 2011-07-04 | 2013-01-09 | ABB Technology AG | Séparateur de charge haute tension électrique et procédé d'ouverture de celui-ci |
| EP2741305A1 (fr) * | 2012-12-07 | 2014-06-11 | ABB Technology AG | Séparateur haute tension |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1054419B1 (fr) | 2006-08-16 |
| US6466420B1 (en) | 2002-10-15 |
| JP2000353457A (ja) | 2000-12-19 |
| FR2793945A1 (fr) | 2000-11-24 |
| FR2793945B1 (fr) | 2001-06-22 |
| ID26059A (id) | 2000-11-23 |
| DE60030032T2 (de) | 2007-02-15 |
| CN1171264C (zh) | 2004-10-13 |
| DE60030032D1 (de) | 2006-09-28 |
| CN1285604A (zh) | 2001-02-28 |
| KR20010020851A (ko) | 2001-03-15 |
| TW476080B (en) | 2002-02-11 |
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