CN1094640C - Extinguishing chamber for circuit breaker with self-extinguishing expansion and rotating arc - Google Patents
Extinguishing chamber for circuit breaker with self-extinguishing expansion and rotating arc Download PDFInfo
- Publication number
- CN1094640C CN1094640C CN 99101371 CN99101371A CN1094640C CN 1094640 C CN1094640 C CN 1094640C CN 99101371 CN99101371 CN 99101371 CN 99101371 A CN99101371 A CN 99101371A CN 1094640 C CN1094640 C CN 1094640C
- Authority
- CN
- China
- Prior art keywords
- contact
- arc
- control device
- coil
- 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.)
- Expired - Fee Related
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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
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H33/185—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using magnetisable elements associated with the contacts
-
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/98—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow
- H01H33/982—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow in which the pressure-generating arc is rotated by a magnetic field
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
An arcing chamber of circuit breaker, which carries on self arc-extinguishing by gas expansion, comprises a stationary contact device 16 working with a movable contact member and a coil 18 making the arc rotate on a track 32. The stationary contact device surrounded by cylindrical coils concentrically, includes a styli 42 placed around, a hollow space definited for accommodating a movable contact member 14. The styli 42 composed of composite matal structure has a copper body 52 in column fanshaped; an electrode 54 composed of refractory conducting material, welded at front end of body 52; a bow 58 composed of ferromagnetic material. welded on the outskirts of part of electrode 54 and body 52.
Description
The present invention relates to the arc control device of high-tension circuit-breaker, this tie breaker insulate by means of the gas of high dielectric strength and is equipped with gas self-expanding arc-control device, and described arc control device comprise:
One housing, it is made by insulating material, include a fixing contact device, this device is worked with a movable contact that is positioned at the contact tube end, this contact tube wherein slides in the hole of a panel by housing, and is mobile between off-position that movable contact and fixing contact device interoperation form and enable possition;
One solenoid, it is used for making the electric arc rotation that is positioned on this coil front end face on the contact track, and described coil and fixedly contact device is fastening forms slider assembly on the panel relative with the above-mentioned panel of housing;
When fixedly contact device separate generation gas self-expanding afterwards, be used for device that these arc control device are communicated with the external volume of described housing at movable contact;
Fixedly contact device is centered on one heart by described cylindrical coil, and it comprises the fingertip of a plurality of circumferential arrangement, to define the hollow space that is used for holding movable contact.
In known above-mentioned such arc control device, flowing of rated current generally occurs in the main circuit that is equipped with fixing and movable main contact, and this main circuit separated before two starting the arc contacts are opened, and after two starting the arc contacts are closed and close.This main circuit is formed by a circuit that has been independent of arc circuit, it around described coil arranged concentric or with respect to described starting the arc circuit side to biasing (concrete described) as European patent document EP 768692A.The labyrinth of this arc control device of circuit-breaker is not suitable for requiring undersized power distribution station.
In the described circuit breaker of United States Patent (USP) 4432886A file, when movable contact and fixed contact therefor were closed, coil came excitatory by rated current.
The objective of the invention is to obtain improved arc control device that are used for the gas expansion from the arc extinguishing tie breaker, this circuit breaker can be contained in the small distribution station.
According to arc control device of the present invention, it is characterized in that each fingertip is made up of composite metal structures, this composite metal structures has:
The copper body of one shape such as cylindrical sector section is used for allowing permanent electric stream pass through in the off-position of movable contact;
With the electrode that refractory conductive material is made, be welded to the front end of described body, be positioned near the fixedly starting the arc contact of electric arc swing-around trajectory so that constitute; And
With the camber member that ferromagnetic material is made, be welded to the periphery of a described electrode and a described body part, described camber member is positioned at the inboard of described coil, so that obtain the guiding of electric arc the best on described electric arc swing-around trajectory.
The synthetic operation of above-mentioned composite construction in described coil inside space as the fixedly contact device of main contact and starting the arc contact can obtain very compact arc control device.
According to a most preferred embodiment, described electrode is made with copper-tungsten-bast alloy, and described camber member is made of a steel.The electrode of each fingertip separates with the described track that contacts with camber member, and has the end play of less thickness, thus when described movable contact when described electrode separates, make the electric arc of described coil excitation be switching to possibility.Each fingertip is equipped with a back edge, and this edge is latched in the bourrelet of a conductive pole and installs.
According to a feature of the present invention, this coil is connected with described conductive pole by means of a plurality of copper supporting arms as packing ring, and described a plurality of packing rings separate with cross-over block and corresponding fingertip.The spring of a plurality of curved knife sheets inserts respectively between each cross-over block and the corresponding contact finger.
Other advantage and feature will become more clear by the description of the following embodiment of the present invention and understand that embodiment only is limited as an example and not, and is illustrated in all accompanying drawings, wherein:
Fig. 1 is the cross-sectional view of arc control device of the present invention, and two contacts are in the closed position;
Fig. 2 is identical with Fig. 1, but the view when representing that two contacts separately are in the enable possition;
Fig. 3 is the pre-coil of installing and the fixing stereogram of contact device module;
Fig. 4 is the front view of Fig. 3;
The cross-sectional view that Fig. 5 cuts open along the 5-5 line for Fig. 4;
Fig. 6 is the fixing stereogram of the basic contact finger of contact device;
Fig. 7 is the vertical view of contact finger;
The cross-sectional view that Fig. 8 cuts open along the 8-8 line for Fig. 7;
The cross-sectional view that Fig. 9 cuts open along the 9-9 line for Fig. 7.
In Fig. 1 and 2, be used for the gas expansion and comprise the housing made from insulating material 12 from the arc control device 10 of the primary cut-out electrode of the electric arc type that goes out, and full with the gas of high dielectric strength, mainly adopt gas such as sulfur fluoride SF
6The inner chamber of arc control device 10 comprises a movable contact 14 of working with fixing contact device 16, and this is contact device 16 and solenoid 18 associatings that make the electric arc rotation fixedly.The movable contact 14 of described tubulose is positioned at the end of the elongated tubular made from electric conducting material 20, and this elongated tubular 20 can slide closely by the hole of insulation shell 12 one of them panel 22.The outer end of this elongated tubular 20 and an operating mechanism (not shown) coupling, this operating mechanism design is used for making described movable contact 14 to move between off-position (Fig. 1) and enable possition (Fig. 2).
Described fixedly contact device 16 by means of the column type conductive pole along described housing 12 vertically by with the hole to side panel 26 of described panel 22, be connected with the outside with electrode intercell connector 28.Described hollow tube 20 makes arc control device 10, in case when two contacts were opened in 14,16 minutes, just the external volume with described housing 12 communicated, so that make the gas can self-expanding.
Described insulation shell 12 forms by the butt joint of two and half shell 12A, 12B, and each half shell usefulness has high mechanical properties and heat-resisting resinous polymer mold pressing forms.
Referring to Fig. 3,4,5, being used for the solenoid 18 of arc extinguishing comprises that one group of copper conductive ring 18A that axially adjoins each other and pile up is connected in series by means of several hold-down screw 30 electricity, one group of insert 18B and described one group of alternate setting of conductive ring 18A made from insulating material.The front 31 of described coil 18 is equipped with an electric arc displacement rails 32, and described track 32 is annular, has the internal diameter than the slightly larger in diameter of movable contact 14.The back conductive ring 33 relative with described front 31 is connected with aforesaid conductive pole 24 by means of the supporting arm 34 that several constitute copper washers, and several supporting arms 34 separate by means of the fixedly contact device 16 of several cross-over blocks 36 and inside.Two steel washers 38,40 are fixed on the back of described coil 18 by several screws 30, and the centre is provided with insulating washer 41.
The gas expansion comprises three contact fingers 42 that are fan shape from the fixedly contact device 16 of arc-suppression circuit circuit breaker, and circumferential arrangement forms a cylindrical hollow contact.The internal diameter of this hollow contact clearly will adapt with the external diameter of movable contact 14, so that respectively in the beginning of movable contact 14 opening travels and shutoff stroke finally, allow to do retractile slip.
Each contact finger 42 connects mutually with curved cultrate spring, and the convex surface of spring is bearing on the cross-over block 36 of respective support arm 34.The edge 46 that three contact fingers 42 provide by means of three contact fingers 42 later with respect to the fixing centering of contact device 16 longitudinal axis is installed in the mode of padlock on the spigot 48 of post 24 and finishes.
Described coil 18 has less annular gap with one heart around described fixedly contact device 16, and the mounted in advance assembly that forms slider assembly is fixed on the panel 26 by means of nut 50, and this nut 50 can be from the outside of housing 12 near it.
The structural configuration of the fixedly contact device in the coil 18 is to produce fixedly main contact and the movable contact that permanent electric current flows and the fixedly starting the arc contact in current switching stage when fixedly contact device separates and in the coil 18 in order to give it with dual-use function, to be.In Fig. 6 to 9, each contact finger 42 usefulness composite metal structures is made, and adopts different materials to be welded.The body of contact finger 42 is made of copper, and is the cylindrical sector shape, nonvolatil electric current is passed through with the movable contact of box lunch 14 when in the closed position.Nickel-tungsten electrode 54 is welded in place in the rear portion of the body 52 of padlock edge 46 offsides.This electrode 54 is carried out fixing starting the arc contact, so as protection fixedly contact device 16 be not subjected to the effect of electric arc influence.
The interior columnar portion of body 52 is connected with electrode 54 by intermediate curve portion 56, so that in the insertion of the movable contact 14 of the dwell period of circuit breaker.The camber member 58 that one usefulness steel or other ferromagnetic material are made is welded to the outer rim of body 52 electrodes 54, so as to finish electric arc guiding and when transferred arc when the guide rail 32, the magnetic field that coil produces can evenly distribute.The axial length of camber member 58 is greater than the length of electrode 54, and extends up near the columnar portion of body 52.
The operation principle of arc control device 10 of the present invention is as follows:
In the off-position (see figure 1), movable contact 14 is inserted into fixedly in the contact device 16, and combines with copper body 52, is that the permanent electric stream of 630A passes through so that make rated current.Contact pressure is applied on a plurality of contact fingers 42 by spring 44, at this moment, because all electric currents are by the movable contact 14 of post 24, a plurality of contact finger 42 and pipe 20, so coil is not worked.Active force produces compensating action on two contacts closely, so that they keep closed condition.
If generation short circuit current, operating mechanism are upwards slided pipe 20, and movable contact 14 is extracted in the direction of electrode 54.In case movable contact 14 from electrode 54 separately, it and track 32 are separated a little end play.So electric arc is moved on the track 32, make electric current in coil 18 and a plurality of supporting arm 34, flow through, be accompanied by magnetic field 60 and form, cause that electric arc centers on track 32 high speed rotating.At this moment, flow in a plurality of contacts 42 without any electric current.
The rising of arc temperature makes the sulfur fluoride (SF in the housing 12
6) pressure of gas increases, subsequently, gas by pipe 20 in the allowance for expansion of gas tank (not shown).In case electric arc mat air-flow is sufficiently cooled, electric arc is promptly gone out by breath.
The joint operation of fixedly contact device 16 in coil 18 inner spaces as main contact and starting the arc contact makes that obtaining very compact arc control device with low manufacturing cost becomes possibility.
Claims (9)
1. the gas by means of high dielectric strength insulate and is equipped with the arc control device of the high-voltage circuit breaker of gas self-expanding arc-control device, and it comprises:
One housing (12), it is made by insulating material, include a fixing contact device (16), this device is positioned at the terminal movable contact (14) of contact tube (20) with one and works, this contact tube (20) slides by the hole of (12) panels of described housing, moves between off-position that described movable contact (14) and described fixedly contact device (16) interoperation form and enable possition;
One solenoid (18), it is used for making the electric arc rotation of the contact track (32) that is positioned on this coil front end face, described coil and described fixedly contact device (16) are fastening, go up at the panel (26) relative with the above-mentioned panel of housing (12) and form a slider assembly;
When described movable contact and described fixedly contact device separate the back and produce the gas self-expanding, be used for device that these arc control device are communicated with the external volume of described housing (12);
Described fixedly contact device (16) is centered on one heart by described cylindrical coil (18), and it comprises the fingertip (42) of a plurality of circumferential arrangement, to define the hollow space that is used for holding described movable contact (14);
It is characterized in that each fingertip (42) of described fixedly contact device (16) is made up of composite metal structures, it has:
The copper body (52) of one shape such as cylindrical sector section is used for allowing nonvolatil electric current pass through in the off-position of described movable contact (14);
With the electrode (54) that refractory conductive material is made, be welded to the front end of described body (52), be positioned near the fixedly starting the arc contact of electric arc swing-around trajectory (32) so that constitute; And
The camber member made from ferromagnetic material (58), be welded to the periphery of described electrode (54) and described body (a 52) part, described camber member (58) is positioned at the inboard of described coil (18), goes up best guiding so that obtain electric arc in described hook transition road (32).
2. arc control device according to claim 1 is characterized in that, described electrode (54) is made with copper-tungsten-bast alloy.
3. arc control device according to claim 1 and 2 is characterized in that, described camber member (58) is made of a steel.
4. arc control device according to claim 1, it is characterized in that, the electrode (54) of each fingertip (42) separates with the described track (32) that contacts with camber member (58), and has the end play of less thickness, thereby when described movable contact (14) separately the time, makes the excitatory electric arc of described coil (18) be switching to possibility from described electrode (54).
5. arc control device according to claim 1 is characterized in that, each fingertip (14) is equipped with a back edge (46), and this back edge padlock is at the bourrelet (48) of a conductive pole (24) and install.
6. arc control device according to claim 5, it is characterized in that, described coil (18) is connected with described conductive pole (24) by a plurality of copper supporting arms (34) as packing ring, and described a plurality of copper supporting arms (34) use a plurality of cross-over blocks (36) and corresponding fingertip (42) to separate respectively.
7. arc control device according to claim 6 is characterized in that, the spring of curved knife sheet (44) inserts between each cross-over block (36) and the corresponding fingertip (42).
8. arc control device according to claim 6, it is characterized in that, described coil (18) is by one group of conductive ring that axially piles up (18A), mutual insert (18B) with one group of insulation is insulated and is formed, and two steel washers (38,40) being equipped with in the back of the described coil (18) on described track (32) opposite, its assembly is fixing with several hold-down screws (30).
9. arc control device according to claim 1 is characterized in that, the device of described and external communications is formed by the hollow tube (20) of movable contact (14).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9801103A FR2774212B1 (en) | 1998-01-27 | 1998-01-27 | CUTTING CHAMBER FOR A SELF-EXPANSION AND CIRCUIT BREAKER |
| FR9801103 | 1998-01-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1224904A CN1224904A (en) | 1999-08-04 |
| CN1094640C true CN1094640C (en) | 2002-11-20 |
Family
ID=9522422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99101371 Expired - Fee Related CN1094640C (en) | 1998-01-27 | 1999-01-25 | Extinguishing chamber for circuit breaker with self-extinguishing expansion and rotating arc |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP0932176B1 (en) |
| JP (1) | JP4434348B2 (en) |
| CN (1) | CN1094640C (en) |
| AU (1) | AU735933B2 (en) |
| BR (1) | BR9900176B1 (en) |
| DE (1) | DE69833638T2 (en) |
| EA (1) | EA001575B1 (en) |
| ES (1) | ES2259202T3 (en) |
| FR (1) | FR2774212B1 (en) |
| ID (1) | ID21803A (en) |
| NO (1) | NO317117B1 (en) |
| TW (1) | TW418415B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465234B (en) * | 2009-01-12 | 2011-08-03 | 上海华通开关厂有限公司 | Device for transmitting current of isolation switch switching bus bar |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10131018C1 (en) * | 2001-06-27 | 2003-01-23 | Siemens Ag | Power switch for medium voltage network plane, has opening in switch chamber allowing gas to flow into auto-compression gas space during opening of switch contacts |
| DE502007003782D1 (en) * | 2007-11-02 | 2010-06-24 | Abb Research Ltd | High voltage circuit breaker with rotating arc |
| EP2579287B1 (en) | 2010-05-31 | 2014-07-02 | Ormazabal Y Cia., S.L.U. | Gas circuit breaker |
| EP2434514A1 (en) * | 2010-09-24 | 2012-03-28 | ABB Technology AG | Vacuum interrupter for a circuit breaker arrangement |
| ITMI20120406A1 (en) * | 2012-03-15 | 2013-09-16 | Cembre Spa | PERMANENT ELECTRICAL CONTACT THAT CAN BE APPLIED ON THE SOUND OF RAILS AND THE LIKE |
| CN105428138A (en) * | 2015-11-20 | 2016-03-23 | 河南平芝高压开关有限公司 | High-voltage isolation switch |
| CN108922821B (en) * | 2018-06-14 | 2020-03-06 | 平高集团有限公司 | Arc extinguishing chamber, arc extinguishing chamber contact and arc suppression coil's insulating support |
| CN108735545B (en) * | 2018-06-14 | 2020-04-10 | 平高集团有限公司 | Arc suppression coil's insulating support, explosion chamber contact and explosion chamber |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4249052A (en) * | 1978-05-01 | 1981-02-03 | Electric Power Research Institute, Inc. | Arc spinner interrupter with chromium copper arcing contact |
| ZA824849B (en) * | 1981-08-12 | 1983-11-30 | Northern Eng Ind | Circuit-breaker |
| DE3833564A1 (en) * | 1987-11-24 | 1989-06-08 | Bbc Brown Boveri & Cie | Gas-blast circuit breaker |
| FR2739972B1 (en) * | 1995-10-16 | 1997-12-05 | Schneider Electric Sa | ELECTRICAL CIRCUIT BREAKER WITH INSULATING GAS AND SELF-EXPANSION |
-
1998
- 1998-01-27 FR FR9801103A patent/FR2774212B1/en not_active Expired - Fee Related
- 1998-12-15 ES ES98410148T patent/ES2259202T3/en not_active Expired - Lifetime
- 1998-12-15 EP EP19980410148 patent/EP0932176B1/en not_active Expired - Lifetime
- 1998-12-15 DE DE69833638T patent/DE69833638T2/en not_active Expired - Lifetime
- 1998-12-28 TW TW87121770A patent/TW418415B/en not_active IP Right Cessation
-
1999
- 1999-01-07 ID IDP990009A patent/ID21803A/en unknown
- 1999-01-25 CN CN 99101371 patent/CN1094640C/en not_active Expired - Fee Related
- 1999-01-25 AU AU13230/99A patent/AU735933B2/en not_active Ceased
- 1999-01-26 EA EA199900061A patent/EA001575B1/en not_active IP Right Cessation
- 1999-01-27 JP JP01900499A patent/JP4434348B2/en not_active Expired - Fee Related
- 1999-01-27 NO NO19990379A patent/NO317117B1/en not_active IP Right Cessation
- 1999-01-27 BR BR9900176A patent/BR9900176B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465234B (en) * | 2009-01-12 | 2011-08-03 | 上海华通开关厂有限公司 | Device for transmitting current of isolation switch switching bus bar |
Also Published As
| Publication number | Publication date |
|---|---|
| AU1323099A (en) | 1999-08-19 |
| ID21803A (en) | 1999-07-29 |
| JPH11265641A (en) | 1999-09-28 |
| FR2774212A1 (en) | 1999-07-30 |
| EA199900061A2 (en) | 1999-08-26 |
| NO990379L (en) | 1999-07-28 |
| DE69833638D1 (en) | 2006-04-27 |
| JP4434348B2 (en) | 2010-03-17 |
| EA199900061A3 (en) | 1999-12-29 |
| BR9900176A (en) | 1999-12-28 |
| NO990379D0 (en) | 1999-01-27 |
| CN1224904A (en) | 1999-08-04 |
| ES2259202T3 (en) | 2006-09-16 |
| BR9900176B1 (en) | 2010-11-30 |
| NO317117B1 (en) | 2004-08-16 |
| DE69833638T2 (en) | 2006-11-09 |
| EP0932176A1 (en) | 1999-07-28 |
| FR2774212B1 (en) | 2000-03-10 |
| TW418415B (en) | 2001-01-11 |
| EP0932176B1 (en) | 2006-03-01 |
| EA001575B1 (en) | 2001-06-25 |
| AU735933B2 (en) | 2001-07-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Applicant after: Schneider Electric SA Applicant before: Schenider Electric SA |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: SCHNEIDER ELECTRIC SA TO: SCHNEIDER ELECTRIC INDUSTRIES SAS |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20021120 Termination date: 20180125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |