EP2769397A1 - Disjoncteur a gaz sous pression pouvant etre assemble et desassemble sans perte de gaz. - Google Patents
Disjoncteur a gaz sous pression pouvant etre assemble et desassemble sans perte de gaz.Info
- Publication number
- EP2769397A1 EP2769397A1 EP12775015.6A EP12775015A EP2769397A1 EP 2769397 A1 EP2769397 A1 EP 2769397A1 EP 12775015 A EP12775015 A EP 12775015A EP 2769397 A1 EP2769397 A1 EP 2769397A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- sleeve
- circuit breaker
- opening
- envelope
- 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
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/56—Gas reservoirs
- H01H33/561—Gas reservoirs composed of different independent pressurised compartments put in communication only after their assemblage
-
- 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
- H01H33/42—Driving mechanisms
Definitions
- the invention relates to a gas-insulated current transport circuit breaker which is made in two parts and which comprises means for connecting the two parts to limit the gas losses and simplify the mechanical connection of the two parts.
- Document FR-2.568.405 describes a circuit breaker comprising a connection sleeve of openings of the two elements, and an intermediate member for transmitting motion.
- the connecting sleeve and the intermediate member are connected to a first device before the gas filling thereof and the transmission member cooperates with the sleeve to seal the assembly.
- Mounting the first apparatus on a second lower apparatus is effected by connecting the transmission member to a control rod of the second apparatus, then attaching the sleeve to the second apparatus and finally securing the first apparatus to the second apparatus.
- the purpose of the invention is to propose a pressurized circuit breaker for which the assembly of the two enclosures on one another is simplified compared to the prior art, while limiting the gas losses caused by the assembly or disassembling the speakers.
- the main object of the invention is a pressurized gas circuit breaker having a vertical main axis A comprising:
- an upper enclosure which comprises an upper envelope containing gas and having a lower opening and a moving assembly arranged at the interior of the upper envelope comprising a rod movable coaxially with the main axis A;
- a lower chamber which comprises a lower envelope coaxial with the main axis A of the upper envelope, containing gas and having an upper opening located opposite the lower opening of the upper envelope and a mouthpiece; mobile link in the lower envelope coaxially with the main axis A; and
- a sleeve for connecting the lower opening of the upper envelope with the upper opening of the lower envelope so that the inner volumes of the two envelopes communicate with one another, in which a shaft connecting shaft to the connecting end is mounted to move coaxially with the main axis A,
- Such adjustment means make it possible to dispense with a connection operation of the shaft before mounting the sleeve to a second envelope.
- the adjustment means consist of an eccentric system which is rotatably supported by the sleeve and which has a finger engaging in an associated hole of the shaft.
- the sleeve comprises a cylindrical opening oriented radially with respect to the main axis A in which the adjustment means are received, and which is arranged axially at an axial end of the shaft.
- the adjustment means comprise a radial light with respect to the main axis A which is open and which allows access to said axial end of the shaft through the light.
- the circuit breaker comprises sealing means sealing the cylindrical opening.
- said end of the shaft comprises a radial hole for passage of a connecting shaft of the shaft with the rod or with the connecting end, and the cylindrical opening is located opposite the radial hole.
- the sleeve is adapted to be mounted on the upper enclosure before mounting on the lower enclosure and in that the cylindrical opening is located axially at the lower end of the shaft.
- the sleeve is adapted to be mounted on the lower enclosure before mounting on the upper enclosure and in that the cylindrical opening is located axially at the upper end of the shaft.
- the shaft is able to seal the internal volume of the sleeve when the shaft is in at least one predetermined axial position relative to the sleeve.
- FIG. 1 is a schematic representation in axial section of a circuit breaker having an upper enclosure to be mounted on a lower enclosure according to the invention
- FIG. 2 is a perspective sectional view of the circuit breaker shown in Figure 1, according to an axial plane orthogonal to that of Figure 1, mounting the lower enclosure mounted on the lower enclosure;
- FIG. 3 is a detail on a larger scale and in perspective of the assembly of the lower enclosure with the sleeve and the connecting shaft, showing the means for adjusting the axial position of the connecting shaft.
- FIG. 1 shows a gas-insulated breaker 10 of the T-type which comprises an upper enclosure 12 comprising two breaking chambers (not shown), a lower enclosure 14 on which the upper enclosure 12 is mounted and means for connection 16 of the speakers 12, 14 one on the other.
- the upper enclosure 12 comprises an upper envelope 18 containing a gas under pressure, consisting of a dielectric gas such as sulfur hexafluoride (SF6).
- a gas under pressure consisting of a dielectric gas such as sulfur hexafluoride (SF6).
- the upper envelope 18 has two lateral openings 20 for connection to the breaking chambers and a lower opening 22 for its connection to the lower enclosure 14.
- a moving assembly 24 is arranged inside the upper envelope 18, for simultaneous actuation of the breaking chambers.
- the moving assembly 24 comprises return systems (not shown) and a rod 28 movable axially along a main axis A of the circuit breaker 10, which is here a vertical axis with reference to the figures.
- the lower enclosure 14 comprises a lower casing 30 which is generally tubular and coaxial with the main axis A and which is filled with the same gas under pressure as the upper casing 18.
- the upper end 30s of the lower envelope 30 is open upwards, forming an upper opening 33, and carries a connecting member 34 through which the lower envelope 30 is intended to be connected to the upper envelope 12.
- a connecting piece 36 is slidably mounted in the connecting member 34, it cooperates with the connecting member 34 to seal the upper opening 33 in a gastight manner when the lower enclosure 14 is not connected to the upper enclosure 12.
- the connecting piece 36 is able to be connected to a connecting rod (not shown) and to be connected to the mobile assembly for the actuation of the breaking chambers.
- the connecting means 16 of the upper enclosure 14 on the lower enclosure 14 comprise a generally tubular sleeve 38 whose upper end 38s is intended to be fixed to the upper casing 18 at the lower opening 22 and whose the lower end 38i is intended to be fixed to the lower casing 30, at the level of the upper opening 33, via the linking member 34.
- the connecting means 16 also comprise a shaft 40 for connecting the connecting piece 36 to the rod 28 which is slidably mounted axially with respect to the main axis A in the sleeve 38.
- the sleeve 38 comprises an upper annular section 42 which cooperates with an associated section 44 of the connection shaft 40 and a lower annular section 48 of internal diameter greater than the internal diameter of the upper annular section 42, which is adapted to receive a complementary portion 50 of the connecting member 34 when the sleeve 38 is fixed on the lower enclosure 14 via the connecting member 34, as can be seen in Figure 2.
- the upper enclosure 12 and the lower enclosure 14 are filled with gas before their assembly one on the other, then their volumes interiors are put into communication when they are assembled.
- the connecting means 16 are fixed to the upper enclosure 12 before attachment to the lower enclosure 14 and before filling the upper envelope 18 with gas.
- the shaft 40 is then connected to the rod 28 and the upper end 38s of the sleeve 38 is fixed to the upper casing 18.
- the connecting means 16 close the lower opening 22 of the upper envelope 18 before assembling the upper enclosure 12 on the lower enclosure 14.
- the annular section 42 of the sleeve 38 cooperates with the associated section 44 of the connection shaft 40 and with an O-ring 46 so that the sleeve 38, and therefore the lower opening 22, is closed tightly.
- the assembly of the enclosures 12, 14 one on the other is carried out by mounting the sleeve 38 on the connecting member 34, then connecting the shaft 40 to the connecting end 36.
- the sleeve 38 is mounted on the connecting member 34 by screwing its lower end 38i onto an associated bearing surface of the connecting member 34, sealing means not shown to prevent gas leakage.
- connection of the shaft 40 to the connecting piece 36 is formed by an axis 52 which is received in two coaxial surfaces 54, 56 made in the lower end of the shaft 40 and the endpiece 36, as shown. in Figure 3.
- the connecting means 16 are made such that the lower end of the connection shaft 40 is located inside the sleeve 38, before the assembling of the enclosures 12, 14. Moreover, as previously described, the connecting member 34 comprises a portion 50 received in the lower section 48 of the sleeve 38.
- the sleeve 38 has an opening 58 located axially with respect to the main axis A at the level of the lower end of the shaft 40, that is to say at the bearing surfaces 54, 56 and located on the periphery of the sleeve 38, in the axial extension of the bearing surfaces 54, 56.
- the connecting means 16 comprise means 60 for adjusting the axial position of the connection shaft 40 relative to the sleeve 38 so that, during the assembly of the enclosures 12, 14, it is possible to axially moving the connecting shaft 40 in the sleeve to position the bearing surfaces 54, 56 facing each other.
- the adjustment means 60 consist of an eccentric type system, comprising a ring 62 mounted to rotate with respect to the sleeve 38 around the main axis B of the ring 62 and which carries a pin 64 offset radially relative to to the main axis B of the ring 62, which is received in a complementary orifice 66 of the shaft 40.
- the main axis B of the ring 62 is oriented radially with respect to the main axis A of the circuit breaker 10.
- a rotation of the ring 62 around its main axis B causes a change in the axial position of the finger 64 and thus a change in the axial position of the shaft 40.
- the adjustment means 60 are arranged in the opening 58 allowing access to the lower end of the shaft 40, for the insertion of the axis 52 into the bearing surfaces 54, 56.
- the opening 58 is for this purpose of circular section complementary to the section of the ring 62 to allow rotation of the ring 62 in the opening 58.
- the ring 62 further comprises a light 68 which is generally radial with respect to the main axis A of the circuit-breaker, which makes it possible to reach the lower end of the shaft 40 at which the bearing surfaces 54, 56 are located, for the introduction of axis 52.
- the light also makes it possible to visually control the relative axial position of the shaft 40 with respect to the end piece 36 of the connection end piece 36 so that the bearing surfaces 54, 56 are aligned.
- the adjustment means 60 are disengaged from the shaft 40, so that they do not interfere with the operation of the circuit breaker 10.
- the opening 58 is made to communicate the internal volume of the sleeve 38 with the outside. Also, the sleeve 38 makes it possible to communicate the interior volumes of the two envelopes 18, 30 with each other.
- the connecting means 16 further comprise a cap (not shown) for closing the opening 58 in a gas-tight manner, which is mounted on the sleeve 38 after the place of the axis 52.
- the end piece 36 can be operated, for example by an axial connecting rod (not shown) movable in the lower casing 30, to move the shaft 40 and the moving assembly 24 towards normal operation in which the openings 22, 33 of the envelopes 18, 30 are not closed.
- an axial connecting rod (not shown) movable in the lower casing 30, to move the shaft 40 and the moving assembly 24 towards normal operation in which the openings 22, 33 of the envelopes 18, 30 are not closed.
- the circuit breaker 10 has been described from one embodiment in which the sleeve 38 is mounted on the upper enclosure before being mounted on the lower enclosure 14.
- connection means of the shaft 40 with the rod 28 and the connecting piece 36 as well as the adjustment means 60 are then adapted so that the opening 58, the bearing surfaces 54, 56 and the adjusting means 60 are associated with the upper end of the shaft 40.
Landscapes
- Gas-Insulated Switchgears (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1159362A FR2981496B1 (fr) | 2011-10-17 | 2011-10-17 | Disjoncteur a gaz sous pression pouvant etre assemble et desassemble sans perte de gaz |
| PCT/EP2012/070512 WO2013057117A1 (fr) | 2011-10-17 | 2012-10-16 | Disjoncteur a gaz sous pression pouvant etre assemble et desassemble sans perte de gaz. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2769397A1 true EP2769397A1 (fr) | 2014-08-27 |
| EP2769397B1 EP2769397B1 (fr) | 2015-09-30 |
Family
ID=47045029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12775015.6A Active EP2769397B1 (fr) | 2011-10-17 | 2012-10-16 | Disjoncteur a gaz sous pression pouvant etre assemble et desassemble sans perte de gaz. |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2769397B1 (fr) |
| FR (1) | FR2981496B1 (fr) |
| WO (1) | WO2013057117A1 (fr) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2568405B1 (fr) * | 1984-07-25 | 1986-11-07 | Alsthom Atlantique | Disjoncteur a gaz sous pression pouvant etre assemble et desassemble sans perte de gaz |
| FR2827074B1 (fr) * | 2001-07-06 | 2003-09-05 | Alstom | Pole de disjoncteur a gaz sous pression pouvant etre assemble et desassemble sans perte de gaz appreciable |
-
2011
- 2011-10-17 FR FR1159362A patent/FR2981496B1/fr not_active Expired - Fee Related
-
2012
- 2012-10-16 WO PCT/EP2012/070512 patent/WO2013057117A1/fr not_active Ceased
- 2012-10-16 EP EP12775015.6A patent/EP2769397B1/fr active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013057117A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013057117A1 (fr) | 2013-04-25 |
| FR2981496A1 (fr) | 2013-04-19 |
| FR2981496B1 (fr) | 2013-12-27 |
| EP2769397B1 (fr) | 2015-09-30 |
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