EP2437277B1 - Agencement de disjoncteur de moyenne tension - Google Patents

Agencement de disjoncteur de moyenne tension Download PDF

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Publication number
EP2437277B1
EP2437277B1 EP20100011389 EP10011389A EP2437277B1 EP 2437277 B1 EP2437277 B1 EP 2437277B1 EP 20100011389 EP20100011389 EP 20100011389 EP 10011389 A EP10011389 A EP 10011389A EP 2437277 B1 EP2437277 B1 EP 2437277B1
Authority
EP
European Patent Office
Prior art keywords
switching
circuit breaker
medium voltage
voltage circuit
breaker arrangement
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.)
Not-in-force
Application number
EP20100011389
Other languages
German (de)
English (en)
Other versions
EP2437277A1 (fr
Inventor
Christian Reuber Dr.
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.)
ABB Technology AG
Original Assignee
ABB Technology AG
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 ABB Technology AG filed Critical ABB Technology AG
Priority to EP20100011389 priority Critical patent/EP2437277B1/fr
Priority to PCT/EP2011/004872 priority patent/WO2012041501A1/fr
Publication of EP2437277A1 publication Critical patent/EP2437277A1/fr
Application granted granted Critical
Publication of EP2437277B1 publication Critical patent/EP2437277B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H33/022—Details particular to three-phase circuit breakers
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
    • H01H2033/6623—Details relating to the encasing or the outside layers of the vacuum switch housings
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H2033/6665—Details concerning the mounting or supporting of the individual vacuum bottles
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H2033/6667—Details concerning lever type driving rod arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
    • H01H71/0271—Mounting several complete assembled circuit breakers together

Definitions

  • the invention relates to a medium voltage circuit breaker arrangement comprising several switching poles which are adjacently mounted on a support structure, wherein the distance between the switching poles depends on the electrical insulating requirements or on customer requirements.
  • Medium voltage circuit breakers are used for switching 1-72kV of a high current level. These special circuit breakers are preferably used in electrical networks to interrupt short circuit currents as well as load currents under difficult load impedances.
  • the number of switching poles occurs with the number of poles in the electrical network. Usually, a three pole arrangements is provided. Each switching pole usually comprises vacuum or special gas filled interrupter inserts containing a pair of corresponding electrical contacts, wherein one of both contacts is axial moveable arranged in order to form an electrical switch. The switching pole interrupts the current by creating and extinguishing the arc in the closed vacuum or gas filled container.
  • Modern vacuum circuit breakers tend to have a longer life expectancy than conventional air circuit breakers.
  • the present invention is not only applicable to vacuum or gas filled circuit breakers having a chamber filled sulphur-hexafluoride gas, but also for conventional air circuit breakers.
  • the WO 99/31776A1 discloses an air-insulated withdrawal circuit breaker arrangement for medium voltage applications.
  • the functional features are "connect”, “disconnect” and "earth”.
  • the circuit breaker arrangement contains a switching module which consists of function-orientated modular units, namely a base unit, a switching pole unit comprising preferably three switching poles, and a drive unit for actuating the moveable electrical contacts of each switching pole simultaneously.
  • the base unit forms a supporting structure for the medium voltage circuit breaker arrangement.
  • the drive unit as well as the pole unit is attached in such a way that it can move in a straight line.
  • the US 4,527,028 A discloses a pole part arrangement, in which for different pole distance arrangements, the support means, on which the pole parts are arranged, has to be changed.
  • the FR 1 139 368 also discloses a pole part arrangement, by which pole distance only can be changed by the use of complete different mouting supports.
  • the arrangement of the foregoing mentioned units depends on electrical insulating requirements in order to ensure the electrical safety. Especially the side by side arrangement of the switching poles with its electrical terminals is critical. Standard pole distances of 150, 210 and 275mm depending on the electrical voltage or on customers requirements are defined. For each pole distance a corresponding support structure is needed. All variance of supporting structures have to be kept in stock in large numbers. Practical experience from the past teaches that the required number of each variant is difficult to predict as to the ordered types tend to change frequently. Furthermore, the required delivery time for circuit breakers according to the present invention is further than the production time for the individual supporting structures.
  • each switching pole of a medium voltage circuit breaker is fastened on a corresponding mounting part and these mounting parts are attached one to another via intermediate connecting parts for defining the required distance between the switching poles.
  • the invention provides a supporting structure with standard mounting parts for switching pole.
  • the intermediate connection parts form a kind of bridge between two adjacent mounting parts, which are available in the required variance in order to define the needed distance between the switching poles.
  • the present invention proposes an adjustable supporting structure for a medium voltage circuit breaker, which can form the housing for the circuit breaker. During the assembly process the circuit breaker is adjusted to always the same, for example the smallest, pole distance.
  • each switching pole has an own drive
  • the drives of all phases are mechanically coupled with the next switching pole, by a common drive shaft, or a commonly aligned drive shaft arrangement for defining the distance between the switching poles, as well as to synchronize the switching of alle switching poles.
  • the dirve shaft arrangment has a double function. One is to alligne the switches in an adjustable distance.
  • the second function is, that each drive has an own drive, so that each driving force for each switch is generated in each switch as its own. But the coupling of the driveshaft arrangement synchronize the functionally independent drives of each switches together, in order to synchronize a simulatious switching action. So the coupled driveshafts don't introduce the driving force, but only synchronize the 3 drives to a common switching procedure with a low coupling force.
  • the distance between the switching poles which can be realised by the support structure is in the range of 120-300 Millimeters.
  • This arrangement covers the foregoing mentioned standard pole distances for the medium voltage application according to the present invention.
  • connection part In order to form a simple mounting part it preferably consists of a bended metal sheet which is electrically grounded for electrical safety.
  • the corresponding connection part can also consist of a bended metal sheet which is adapted to the form of the mounting part.
  • the foregoing mentioned mounting part and connecting part is connected one to another by several screws which are arranged along the common edges of the adjacent parts.
  • connection part consists of at least one adjustable rod arrangement in order to modify the distance between the switching poles according to the electrical insulating requirements or customer requirements.
  • a precise adjustment of the pole distance is possible at the end of the manufacturing process of the medium voltage circuit breaker.
  • At least one adjustable arrangement should run transverse to the central axis of the switching poles in order to ensure a stable mechanical connection between the mounting parts to be fastened and, moreover, to provide an easy adjustment of the distance between the switching poles.
  • the adjustable rod arrangement is preferably accommodated inside the mounting parts. After adjusting the distance the rods should be fixed inside their bushings to fix the pole distance. A visible gap between the mounting parts is recommended, which can be covered with a light plastic cover after adjustment in order to provide a smooth surface of the supporting structure.
  • the central axes of the switching poles are arranged parallel one to another in order to ensure equal pole distances by using the support structure according to the present invention.
  • All switching poles of the circuit breaker arrangement should be positioned in line one to another.
  • the switching poles as well as an optional common actuating unit are attached to its corresponding mounting parts of the support structure by several screws for easy maintenance.
  • the medium voltage circuit breaker arrangement consists of three switching poles (1 a-1 c) which are mounted one to another on a supporting structure (2) the switching poles (1a-1c) are attached to the supporting structure (2) by several screws (3) (exemplary).
  • the supporting structure (2) forms the housing for accommodating - not shown - drive means for operating the switching poles (1 a-1 c) by an actuator unit (4) which is also attached to the supporting structure (2).
  • Each pole part (1a-1c) comprises a - not shown - inner vacuum insert for accommodating a pair of corresponding electrical contacts, wherein a moveable electrical contact is operated by the said actuator unit (4) simultaneously.
  • the moveable electrical contact is electrically connected to a lower electrical terminal (5a) (exemplary); the other electrical contact is fixedly arranged inside the respective pole part (1a-1c) and is electrically contacted to an upper electrical terminal (5b) (exemplary).
  • Each switching pole (1 a-1 c) is fastened on a corresponding mounting part (6a-6c) respectively by the said screws (3).
  • the mounting parts (6a-6c) are attached one to another via intermediate connection parts (7a and 7b) in order to define the required distance between the switching poles (1a-1c).
  • the mounting parts (6a-6c) consist of a bended metal shield which is electrically grounded.
  • the corresponding connection parts (7a and 7b) also consist of a bended metal shield which is adapted to the form of the mounting parts (6a-6c).
  • the connection parts (7a and 7b) are attached to the mounting parts (6a-6c) by several screws (8) which are arranged along the corresponding overlapping edges.
  • the support structure (2) forms a kind of lower basis for the switching poles (1a-1c) as well as the actuator unit (4) which are mounted on a common mounting surface of the support structure (2).
  • a rectangular support structure (2) is provided for attaching the switching poles (1 a-1 c) thereon. All drive means are accommodated in a vertical section of the support structure (2).
  • the intermediate connection parts (7a and 7b) are large in order to provide a correspondingly large distance between switching poles (1a-1c) which are mounted on the respective mounting parts (6a-6c).
  • FIG 3 another embodiment is shown wherein short versions of intermediate connection parts (7a and 7b) are provided in order to define a short distance between the switching poles (1a-1c) which are mounted on respective mounting parts (6a-6c).
  • the medium voltage circuit breaker arrangement according to that embodiment is intended for lower voltage applications, since a small distance between the switching poles (1a-1c) is suitable in that case.
  • FIG 4 shows another embodiment of the invention.
  • the three switching poles (1a-1c) are mounted on the corresponding mounting parts (6a-6c) as usual.
  • the connecting part (7) consists of an adjustable rod arrangement. Due to the adjustable rod arrangement it is possible to modify the distance between the switching poles (1a-1c) according to the electrical insulating requirements.
  • connection part (7) in order to define a large distance between the switching poles (1 a-1 c) which meets the requirements of the electrical safety or of the customer.
  • the connection part consists of two single rods which are guided in corresponding sleeves (8a and 8b) which are attached on the middle mounting part (6b)' of the support structure (2)'.
  • a jack shaft arrangement (9) with adjustable pole distance of the gear means is provided for simultaneously switching the three switching poles (1 a-1 c) by a - not shown - actuator unit as described above.
  • Figure 5 shows shows as an example a design with an individual pole drive.
  • the three phases are connected with a light shaft for synchronisation and mechanical tripping.
  • the shaft can be inserted laterally through all phases at the end of the production line and does not have to be adjustable.
  • the three housings can be connected as shown in the Figures 4 and 5 to form a complete CB. These connections can be relatively light, as they do not have to transfer the full force of the drives.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)

Claims (11)

  1. Agencement de disjoncteur à moyenne tension comprenant plusieurs pôles de commutation (1a - 1c) qui sont montés de façon adjacente sur une structure de support (2), la distance entre les pôles de commutation (1a - 1c) pouvant être réglée à la fin du processus de production ;
    caractérisé en ce que chaque pôle de commutation (1a - 1c) lui-même est attaché sur une partie de montage séparée (6a - 6c) et ces parties de montage (6a - 6c) sont attachées l'une à l'autre au moyen de parties de raccordement intermédiaires (7a - 7b) pour définir la distance entre les pôles de commutation (1a - 1c), de façon à ce que ce n'est pas la structure de support toute entière qui doit être reproduite dans le nombre requis de variantes différentes mais seulement les parties intermédiaires.
  2. Agencement de disjoncteur à moyenne tension comprenant plusieurs pôles de commutation (1a - 1c) qui sont montés de façon adjacente sur une structure de support (2), la distance entre les pôles de commutation (1a - 1c) pouvant être réglée à la fin du processus de production, selon la revendication 1,
    caractérisé en ce que chaque pôle de commutation (1a - 1c) a son propre entraînement, et les entraînements de toutes les phases sont accouplés mécaniquement avec le pôle de commutation suivant, par un arbre d'entraînement commun (9), ou un agencement d'arbres d'entraînement alignés de façon commune (9) pour définir la distance entre les pôles de commutation (1a - 1c), de même que pour synchroniser 1a commutation de tous les pôles de commutation.
  3. Agencement de disjoncteur à moyenne tension selon la revendication 1 ou 2,
    caractérisé en ce que la distance entre les pôles de commutation (1a - 1c) est située dans la plage allant de 150 à 300 millimètres.
  4. Agencement de disjoncteur à moyenne tension selon la revendication 1 ou 2,
    caractérisé en ce que la partie de montage (6a - 6c ; 6a' - 6c') consiste en une tôle pliée, qui est mise à la terre électriquement.
  5. Agencement de disjoncteur à moyenne tension selon la revendication 4,
    caractérisé en ce que la partie de raccordement (7a - 7b ; 7a' - 7b' ; 7a" - 7b") consiste en une tôle pliée qui est adaptée à la forme de la partie de montage (6a - 6c ; 6a' - 6c').
  6. Agencement de disjoncteur à moyenne tension selon la revendication 5,
    caractérisé en ce que les parties de raccordement (7a - 7b ; 7a' - 7b' ; 7a" - 7b") sont attachées aux parties de montage (6a - 6c ; 6a' - 6c') par plusieurs vis disposées le long des bords correspondants.
  7. Agencement de disjoncteur à moyenne tension selon la revendication 1 ou 2,
    caractérisé en ce que la partie de raccordement (7) consiste en au moins un agencement de tige réglable afin de modifier la distance entre les pôles de commutation (1a - 1c) selon les exigences d'isolation électrique.
  8. Agencement de disjoncteur à moyenne tension selon la revendication 7,
    caractérisé en ce que l'au moins un agencement de tige réglable est disposé transversalement à l'axe central des pôles de commutation (1a - 1c).
  9. Agencement de disjoncteur à moyenne tension selon une des revendications précédentes,
    caractérisé en ce que les axes centraux des pôles de commutation (1a - 1c) sont disposés parallèlement l'un à l'autre.
  10. Agencement de disjoncteur à moyenne tension selon une des revendications précédentes,
    caractérisé en ce que le pôle de commutation (1a ; 1b ; 1c) est attaché à la partie de montage respective (6a ; 6b ; 6c) par plusieurs vis (3).
  11. Agencement de disjoncteur à moyenne tension selon une des revendications précédentes,
    caractérisé en ce que la structure de support (2) forme un logement pour loger les moyens d'entraînement pour actionner les pôles de commutation (1a - 1c).
EP20100011389 2010-09-29 2010-09-29 Agencement de disjoncteur de moyenne tension Not-in-force EP2437277B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20100011389 EP2437277B1 (fr) 2010-09-29 2010-09-29 Agencement de disjoncteur de moyenne tension
PCT/EP2011/004872 WO2012041501A1 (fr) 2010-09-29 2011-09-29 Agencement de disjoncteur à moyenne tension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20100011389 EP2437277B1 (fr) 2010-09-29 2010-09-29 Agencement de disjoncteur de moyenne tension

Publications (2)

Publication Number Publication Date
EP2437277A1 EP2437277A1 (fr) 2012-04-04
EP2437277B1 true EP2437277B1 (fr) 2014-12-24

Family

ID=43587525

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100011389 Not-in-force EP2437277B1 (fr) 2010-09-29 2010-09-29 Agencement de disjoncteur de moyenne tension

Country Status (2)

Country Link
EP (1) EP2437277B1 (fr)
WO (1) WO2012041501A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107147032B (zh) * 2017-06-26 2023-03-28 河北电力装备有限公司 一种用于固体绝缘环网柜的联动绝缘棒组
FR3098976B1 (fr) 2019-07-17 2021-06-11 Schneider Electric Ind Sas Architecture d'un appareil électrique interrupteur

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4527028A (en) * 1984-06-27 1985-07-02 Joslyn Mfg. And Supply Co. Modular vacuum interrupter
JPH02281521A (ja) * 1989-03-16 1990-11-19 Sprecher Energ Ag 多極真空遮断器および多極真空遮断器のための絶縁支持枠
DE19757402A1 (de) 1997-12-16 1999-06-17 Siemens Ag Leistungsschalteranlage, insbesondere luftisolierte Leistungsschalter-Einschubanlage der Mittelspannungstechnik
FR2807204B1 (fr) * 2000-03-31 2002-05-24 Schneider Electric Ind Sa Appareillage electrique de coupure multipolaire muni d'un mecanisme d'entrainement et de modules de coupure

Also Published As

Publication number Publication date
WO2012041501A1 (fr) 2012-04-05
EP2437277A1 (fr) 2012-04-04

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