FR2662300A1 - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
- Publication number
- FR2662300A1 FR2662300A1 FR9006115A FR9006115A FR2662300A1 FR 2662300 A1 FR2662300 A1 FR 2662300A1 FR 9006115 A FR9006115 A FR 9006115A FR 9006115 A FR9006115 A FR 9006115A FR 2662300 A1 FR2662300 A1 FR 2662300A1
- Authority
- FR
- France
- Prior art keywords
- branches
- circuit breaker
- contacts
- pair
- subdivided
- 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
Classifications
-
- 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
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
DISJONCTEUR
La présente invention concerne un disjoncteur utilisable en moyenne et haute tension dans lequel l'isolement est assuré par un gaz à bonnes propriétés diélectriques tel que l'hexafluorure de soufre.CIRCUIT BREAKER
The present invention relates to a circuit breaker usable in medium and high voltage in which the insulation is ensured by a gas with good dielectric properties such as sulfur hexafluoride.
On sait que la coupure d'un courant est d'autant plus difficile que l'intensite du courant est importante. Un but de la présente invention est de réaliser un disjoncteur dans lequel la coupure est facilitée, meme si le courant à couper est important. We know that breaking a current is all the more difficult the greater the intensity of the current. An object of the present invention is to provide a circuit breaker in which the breaking is facilitated, even if the current to be cut is large.
Cet objectif est atteint par le disjoncteur de l'invention, dans lequel l'intensité du courant est fractionnée, le disjoncteur comportant des moyens pour couper simultanément chacune des fractions du courant total. This objective is achieved by the circuit breaker of the invention, in which the intensity of the current is fractionated, the circuit breaker comprising means for simultaneously cutting each of the fractions of the total current.
L'invention a donc pour objet un disjoncteur à moyenne ou haute tension, comprenant une enveloppe étanche remplie d'un gaz à bonnes propriétés diélectriques, une première et une seconde prise de courant et une tringle de manoeuvre reliée à un mécanisme de manoeuvre, caractérisé en ce que la première prise est reliée à l'intérieur de l'enveloppe, à un premier conducteur subdivisé en deux branches identiques, chaque branche étant elle-même subdivisée en deux branches identiques, et ainsi de suite jusqu'à obtenir 2n branches terminales dont les extrémités constituent des contacts fixes du disjoncteur, ce dernier comprenant en outre un ensemble mobile comprenant 2n contacts coopérant avec les 2n contacts fixes, les 2n contacts mobiles étant électriquement connectés à la seconde prise de courant et mécaniquement reliés à ladite tringle de manoeuvre, chaque paire de branches étant munie de deux bobines reliées électriquement entre elles pour l'équilibrage des courants dans les deux branches de la paire, n étant un nombre entier. The subject of the invention is therefore a medium or high voltage circuit breaker, comprising a sealed envelope filled with a gas having good dielectric properties, a first and a second socket and an operating rod connected to an operating mechanism, characterized in that the first socket is connected inside the envelope, to a first conductor subdivided into two identical branches, each branch being itself subdivided into two identical branches, and so on until 2n terminal branches are obtained the ends of which constitute fixed contacts of the circuit breaker, the latter also comprising a mobile assembly comprising 2n contacts cooperating with the 2n fixed contacts, the 2n mobile contacts being electrically connected to the second socket and mechanically connected to said operating rod, each pair of branches being provided with two coils electrically connected together for balancing currents in the two branches of the pair, n being an integer.
L'invention sera bien comprise par la description donnée ci-après en référence au dessin annexé dans lequel la figure unique représente une vue partielle en coupe d'un disjoncteur selon l'invention. The invention will be better understood from the description given below with reference to the appended drawing in which the single figure represents a partial sectional view of a circuit breaker according to the invention.
Dans la figure, la référence 1 désigne une enveloppe étanche, en matériau isolant tel que la céramique, de préférence de section cylindrique. Une extrémité de l'enveloppe est fermée par une plaque métallique 2 prolongée pour constituer une première prise de courant du disjoncteur. In the figure, the reference 1 designates a sealed envelope, of insulating material such as ceramic, preferably of cylindrical section. One end of the casing is closed by an extended metal plate 2 to constitute a first outlet for the circuit breaker.
L'enveloppe est remplie d'un gaz à bonnes propriétés diélectriques tel que l'hexafluorure de soufre, sous une pression de un à quelques bars. The envelope is filled with a gas with good dielectric properties such as sulfur hexafluoride, under a pressure of one to a few bars.
La seconde extrémité de l'enveloppe, non représentée, est réalisée de manière connue et permet le passage étanche des organes de manoeuvre habituels qui comprennent notamment 'une tringle 53 en matériau isolant
L'ensemble fixe du disjoncteur comprend une première branche métallique 3 fixée mécaniquement et connectée électriquement à la plaque 2. Selon l'invention, cette branche est divisée en deux branches identiques 31, 32, elles-mêmes divisées chacune en deux branches identiques resepctivement 31A, 31B et 32A, 32B; ces branches sont elles aussi divisées en deux branches identiques, formant dans l'exemple décrit, quatre paires de branches 31A', 31A"; 31B', 31B"; 32A', 32A"; 32B', 32B". Chacune des branches est par construction parcouru par un courant égal au huitième du courant de la branche mère 3.L'invention n'est pas limitée à huit branches terminales; plus généralement, la branche mère peut être divisée de manière à obtenir 2n branches terminales, n étant un nombre entier. En pratique, on choisira n compris entre 1 et 4, pour des raisons évidentes de faisabilité.The second end of the envelope, not shown, is produced in a known manner and allows the sealed passage of the usual operating members which include in particular 'a rod 53 made of insulating material
The fixed assembly of the circuit breaker comprises a first metal branch 3 mechanically fixed and electrically connected to the plate 2. According to the invention, this branch is divided into two identical branches 31, 32, themselves each divided into two identical branches respectively 31A , 31B and 32A, 32B; these branches are also divided into two identical branches, forming in the example described, four pairs of branches 31A ', 31A ";31B',31B"; 32A ', 32A ";32B',32B". Each of the branches is by construction traversed by a current equal to the eighth of the current of the mother branch 3. The invention is not limited to eight terminal branches; more generally, the parent branch can be divided so as to obtain 2n terminal branches, n being an integer. In practice, n will be chosen between 1 and 4, for obvious reasons of feasibility.
L'extrémité des branches terminales constitue des contacts fixes du disjoncteur. The end of the terminal branches constitutes fixed contacts of the circuit breaker.
Ces contacts fixes coopèrent avec autant de contacts mobiles 41A', 41A", 41B', 41B", 42A', 42A", 42B', et 42B", mécaniquement liés à une même pièce métallique 50 et reliés électriquement par des contacts glissants 52 à une plaque transversale métallique se prolongeant en 51A à l'extérieur de l'enveloppe 1 pour constituer la seconde prise de courant du disjoncteur. La pièce métallique 50 est articulée à la tringle de manoeuvre 53. These fixed contacts cooperate with as many movable contacts 41A ', 41A ", 41B', 41B", 42A ', 42A ", 42B', and 42B", mechanically linked to the same metal part 50 and electrically connected by sliding contacts 52 to a metal transverse plate extending at 51A outside of the casing 1 to constitute the second socket outlet of the circuit breaker. The metal part 50 is articulated to the operating rod 53.
Bien entendu, le disjoncteur peut être muni, comme il est bien connu, de dispositifs de soufflage des arcs qui se produisent à la séparation des contacts. Of course, the circuit breaker can be provided, as is well known, with devices for blowing the arcs which occur when the contacts are separated.
Selon une caractéristique de l'invention, chacune des diverses paires de branches est munie de deux bobines d'équilibrage des courants, respectivement 61, 62 pour la paire de branche 31, 32; 61A, 61B pour la paire 31A, 31B; 61A', 61A" pour la paire 31A', 31A"; 61B' 61B" pour la paire 31B', 31B"; 62A', 62A" pour la paire 32A', 32A", 62B', 62B" pour la paire 32B', 32B". According to a characteristic of the invention, each of the various pairs of branches is provided with two current balancing coils, respectively 61, 62 for the pair of branches 31, 32; 61A, 61B for the pair 31A, 31B; 61A ', 61A "for the pair 31A', 31A"; 61B '61B "for the pair 31B', 31B"; 62A ', 62A "for the pair 32A', 32A", 62B ', 62B "for the pair 32B', 32B".
Les bobines de chaque paire sont connectées électriquement entre elles en sens inverse, de manière qu'un flux magnétique total soit nul dans l'ensemble des deux bobines lorsque les courants sont égaux dans les deux branches. The coils of each pair are electrically connected to each other in opposite directions, so that a total magnetic flux is zero in all of the two coils when the currents are equal in the two branches.
Cette disposition, bien connue en soi, permet un équilibrage automatique des courants dans les deux branches d'une paire. This arrangement, well known in itself, allows automatic balancing of the currents in the two branches of a pair.
L'invention s'applique à la réalisation de disjoncteurs à moyenne et haute tension. The invention applies to the production of medium and high voltage circuit breakers.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9006115A FR2662300B1 (en) | 1990-05-16 | 1990-05-16 | CIRCUIT BREAKER. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9006115A FR2662300B1 (en) | 1990-05-16 | 1990-05-16 | CIRCUIT BREAKER. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2662300A1 true FR2662300A1 (en) | 1991-11-22 |
FR2662300B1 FR2662300B1 (en) | 1992-07-24 |
Family
ID=9396669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9006115A Expired - Lifetime FR2662300B1 (en) | 1990-05-16 | 1990-05-16 | CIRCUIT BREAKER. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2662300B1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009118120A1 (en) * | 2008-03-22 | 2009-10-01 | Moeller Gmbh | Balancing system for even-numbered current paths |
WO2009118119A1 (en) * | 2008-03-22 | 2009-10-01 | Moeller Gmbh | Balancing system for even-numbered current paths |
CN102737878A (en) * | 2011-04-11 | 2012-10-17 | Abb技术有限公司 | Switch having two sets of contact elements and two drives |
EP2511929A1 (en) * | 2011-04-11 | 2012-10-17 | ABB Technology AG | Switch having two sets of contact elements |
WO2017025678A1 (en) * | 2015-08-07 | 2017-02-16 | Supergrid Institute | Mechanical cut-off apparatus for a high-voltage or very high-voltage electric circuit with splitting device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE285281C (en) * | ||||
US1843615A (en) * | 1928-09-19 | 1932-02-02 | Westinghouse Electric & Mfg Co | Circuit breaker |
DE972569C (en) * | 1942-12-31 | 1959-08-20 | Aeg | Multiple breakers for high voltage |
-
1990
- 1990-05-16 FR FR9006115A patent/FR2662300B1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE285281C (en) * | ||||
US1843615A (en) * | 1928-09-19 | 1932-02-02 | Westinghouse Electric & Mfg Co | Circuit breaker |
DE972569C (en) * | 1942-12-31 | 1959-08-20 | Aeg | Multiple breakers for high voltage |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009118120A1 (en) * | 2008-03-22 | 2009-10-01 | Moeller Gmbh | Balancing system for even-numbered current paths |
WO2009118119A1 (en) * | 2008-03-22 | 2009-10-01 | Moeller Gmbh | Balancing system for even-numbered current paths |
CN102737878A (en) * | 2011-04-11 | 2012-10-17 | Abb技术有限公司 | Switch having two sets of contact elements and two drives |
EP2511929A1 (en) * | 2011-04-11 | 2012-10-17 | ABB Technology AG | Switch having two sets of contact elements |
EP2511927A1 (en) * | 2011-04-11 | 2012-10-17 | ABB Technology AG | Switch having two sets of contact elements |
EP2511928A1 (en) * | 2011-04-11 | 2012-10-17 | ABB Technology AG | Switch having two sets of contact elements and two drives |
US8797128B2 (en) | 2011-04-11 | 2014-08-05 | Abb Technology Ag | Switch having two sets of contact elements and two drives |
US9035212B2 (en) | 2011-04-11 | 2015-05-19 | Abb Technology Ag | Switch having two sets of contact elements |
CN102737878B (en) * | 2011-04-11 | 2015-11-25 | Abb技术有限公司 | There is the switch of two groups of contact elements and two drivers |
WO2017025678A1 (en) * | 2015-08-07 | 2017-02-16 | Supergrid Institute | Mechanical cut-off apparatus for a high-voltage or very high-voltage electric circuit with splitting device |
US10354819B2 (en) | 2015-08-07 | 2019-07-16 | Supergrid Institute | Mechanical cut-off apparatus for a high-voltage or very high-voltage electric circuit with splitting device |
US10763060B2 (en) | 2015-08-07 | 2020-09-01 | Supergrid Institute | Mechanical cut-off apparatus for a high-voltage or very high-voltage electric circuit with splitting device |
Also Published As
Publication number | Publication date |
---|---|
FR2662300B1 (en) | 1992-07-24 |
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ST | Notification of lapse |