CN1115702C - Vacuum box - Google Patents
Vacuum box Download PDFInfo
- Publication number
- CN1115702C CN1115702C CN 98108765 CN98108765A CN1115702C CN 1115702 C CN1115702 C CN 1115702C CN 98108765 CN98108765 CN 98108765 CN 98108765 A CN98108765 A CN 98108765A CN 1115702 C CN1115702 C CN 1115702C
- Authority
- CN
- China
- Prior art keywords
- cylindrical body
- vacuum tank
- flexible pipe
- lining
- 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 - Lifetime
Links
- 238000005266 casting Methods 0.000 claims abstract description 30
- 229920005989 resin Polymers 0.000 claims abstract description 20
- 239000011347 resin Substances 0.000 claims abstract description 20
- 239000000919 ceramic Substances 0.000 claims abstract description 9
- 239000011810 insulating material Substances 0.000 claims abstract description 8
- 239000011521 glass Substances 0.000 claims abstract 2
- 229920002943 EPDM rubber Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 230000000717 retained effect Effects 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052593 corundum Inorganic materials 0.000 abstract description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 229920002379 silicone rubber Polymers 0.000 description 5
- 239000003822 epoxy resin Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 239000013536 elastomeric material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
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
- H01H33/60—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
-
- 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
- H01H33/6606—Terminal arrangements
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Manufacture Of Switches (AREA)
- Insulating Bodies (AREA)
Abstract
本发明涉及一种真空箱，它有一个柱形体(11)，该柱形体至少部分用一种绝缘陶瓷，最好是Al2O3、玻璃或类似物质制成，它还有一个静触头和一个安装在一根动触杆(22)上的动触头，在此，所说触头均设置在所说柱形体(11)内部的真空中。所说柱形体(11)直至其有动触头的接触杆(22)伸出来的端表面都在绝缘材料，特别是在浇铸树脂中进行围铸。在所说柱形体(11)和浇铸树脂(30，31)之间设置一层弹性衬里(34)，该衬里对在柱形体(11)和绝缘材料(30，31)之间例如因温度条件限制的相对运动进行补偿。
The invention relates to a vacuum box having a cylindrical body (11) at least partially made of an insulating ceramic, preferably Al2O3, glass or similar, a static contact and a mounting A movable contact on a movable contact rod (22), where said contacts are all arranged in the vacuum inside said cylindrical body (11). The cylindrical body (11) up to its end surface from which the contact rod (22) of the movable contact protrudes is cast in insulating material, in particular in casting resin. A layer of elastic lining (34) is arranged between said cylindrical body (11) and casting resin (30, 31). Restricted relative motion is compensated.
Description
The present invention relates to vacuum tank.
The vacuum tank that this paper starts described type has a cylindrical body, be full of vacuum in this cylindrical body, and accommodate a moving contact with a fixed contact, be arranged on the stationary contact bar at this said fixed contact, said moving contact then is arranged on the movable feeler lever, and vacuum sealing device all is inserted into this cylindrical body inside.This vacuum tank has one at least by insulating material, the preferably ceramic cylindricality pipeline section of making; By means of a cover of meter hood or one section bellows the two ends of said cylindrical body being sealed with vacuum-packed form, allow said feeler lever at this this bellows, exactly is that moving contact moves.
Such vacuum tank is well-known.
Be well known that the vacuum tank of a breaker electrode packed in the parts that an epoxy resin Modeling Material makes that these parts are born the task dielectric aspect and mechanical aspects; Between this vacuum tank and this Modeling Material parts, has one deck intermediate insulation gas, for example SF6.Also can consider to use air.
Referring to GB1 030 798, be well known that and use a kind of plastics, preferably epoxy resin encloses casting to this vacuum tank, so that the cylindricality pipeline section of being made by insulating ceramics of this vacuum tank is avoided polluting, because for example on the insulation pipeline section, just may form pollution layer on the outer surface of the insulation pipeline section of cylindrical body, this surface contamination layer can make breakdown strength reduce.
If the cylindrical body of a vacuum tank is enclosed casting at casting resin, for example in the epoxy resin, then the problem of Cun Zaiing is: make with gas under the situation of surface insulation, can form a kind of defective attachment phenomenon between this casting resin and pottery, this attachment phenomenon has only by additional and increases attached dose of ability and eliminate.Under extreme heat load situation, also may in this casting resin, form crackle, these high efficiency of enclosing the vacuum tank of casting have separately partly or entirely been offseted.
Therefore task of the present invention provides the vacuum tank that a kind of this paper starts described the sort of type, and it can avoid casting resin to crack because of temperature effect under the manufacturing cost situation of economy.
Vacuum tank of the present invention, it has a cylindrical body, this cylindrical body to small part is made by a kind of insulating ceramics, it also has a fixed contact and one to be installed in a moving contact on the movable feeler lever, said contact all is arranged in the vacuum of said cylindrical body inside, said cylindrical body is all enclosed casting in casting resin until the end surfaces that it has the contact lever of moving contact to stretch, one deck cushions is set between said cylindrical body and insulating material, this lining compensates the relative motion between cylindrical body and insulating material, it is characterized in that: said lining is made by a kind of flexible pipe, this flexible pipe has some makes this flexible pipe remain the intermediary of cylindricality, this diameter of flexible pipe that is retained as cylindricality is greater than the overall diameter of said cylindrical body, after said flexible pipe being covered on the said cylindrical body and under removal intermediary state, the diameter of said flexible pipe is less than the diameter of said cylindrical body, so that the end of this flexible pipe covers the end face of said cylindrical body at least in part.
According to the present invention, at cylindrical body and insulating material, promptly also have one deck cushions between the casting resin, by this lining, the relative motion that for example limits because of temperature conditions between cylindrical body and insulating material can be compensated.
According to a kind of preferred structure of the present invention, said lining can be made with ethylene-propylene-diene-rubber (Ethylen-Propylen-Dien-Kautschuk) or ethylene-propylene-ternary rubber (Ethylen-Prop-Ter-Kautschuk); Good especially mode is that this lining is made a kind of flexible pipe, and this flexible pipe has some makes this flexible pipe remain the intermediary of cylindricality, so that can easily it is set on this vacuum tank; After covering, these intermediaries are removed, thereby this flexible pipe flexiblely is centered around on the cylindrical body of this vacuum tank as bellows.Said flexible pipe is significantly less than said cylindrical body at the diameter of removing under the intermediary state.
Can exactly be crosslinked polyethylene material also with ethylene-propylene-adhesive (Ethylen-Propylen-Mastics) or polyethylene as this lining.
Material at this this flexible pipe is chosen like this, and promptly it can bear the casting resin temperature of rising during enclosing this switch-box of casting, and its shape or characteristic do not change.And the thickness of this lining, just the thickness of this flexible pipe is chosen like this, and promptly it is fit to make the relative core of casting mold to keep sealing during enclosing casting.In addition, said material can also be chosen like this, be that it compensates the thermal transmission coefficient that vacuum tank has nothing in common with each other in-30 ℃ to+105 ℃ temperature province, and stop to form crackle in casting resin, the parts made from steel that is to say that this lining must become insulating ceramics pipeline section, copper and the various thermal expansions of casting resin parts compensate.This point will be realized by ethylene-propylene-diene-rubber (Ethylen-Propylen-Dien-Kautschuk).
In addition, this lining also should form good being connected with casting resin, and it should not influence the functional characteristic of this switch-box and have good in insulating properties.
So that can easily it be set to mode on the cylindrical body, make the installation of lining very simple by lining being kept a kind of shape with said intermediary.
It is known making lining itself with bellows.
Also the available silicon resin is that silicon rubber is made elastomeric material.
Under any circumstance, particularly using under the silicon rubber situation, said elastomeric material is not all to insert in the casting resin.Said elastomeric material, particularly silicon rubber at an end of this vacuum tank freely to stretch, so that this material can expand there than reasonable manner.
Below will be by the accompanying drawing that shows one embodiment of the invention, explanation in detail and is clearly carried out in other version and improvement preferably of the present invention and the present invention.
Unique accompanying drawing is the cutaway view of vacuum tank of the present invention.
Vacuum tank 10 has a cylindrical body 11, and it comprises two by insulating ceramics, and the cylindricality pipeline section of being made by Al2O3 12,13 preferably, these two pipeline sections interconnect having under the middle seam situation of a becket 14.This becket 14 is used for fixing a radome that is in this vacuum tank inside.The end rib 15 that this cylindrical body 11 is in accompanying drawing top is covered by a cover of meter hood 16, and a stationary contact bar 17 passes this cover of meter hood 16, has the fixed contact that does not illustrate among the figure on the inner termination of this stationary contact bar.A contact block 18 is connected from that end that vacuum tank 10 is stretched, and vertical with the axis M-M of vacuum tank, and going up supply lines for one can 19 be fixed on this contact block 18 by being threaded.
Insulate the down bottom 20 of pipeline section 13 is connected with one section cylindricality metal tube 21, a movable feeler lever 22 extend in this pipe fitting 21, in the mode that is not shown specifically in scheming one section bellows is set between movable feeler lever 22 and metal section 21 at this, this bellows allows movable feeler lever 22 to move on the direction of axis M-M; A moving contact is arranged on the inner termination of this movable feeler lever 22, and this moving contact and fixed contact form a contact point.Connect a flexibility in the outer end of this contact lever 22 and be with 23, this flexibility is with 23 to be connected with a contact block 24, and following supply lines can 25 be connected on this contact block 24 by being threaded.This contact lever 22 is connected with a drive rod 26.
As being clearly shown that among the figure, this vacuum tank l0 is enclosed casting in a casting resin seal 30, and this casting resin seal 30 has a pipeline section 31, and this pipeline section 31 surrounds said cylindrical body 11, at this, this insulator 30,31 also surrounds cover cap 16 and contact block 18.The end that on the cylindrical body 11 of vacuum tank 10, has movable feeler lever 22 to stretch out, there is one section cylindricality ring set 32 to be connected with pipeline section 31, this ring set surrounds contact block 24 on the one hand, and be provided with the projection 33 of annular on its outer surface, these projections 33 are used to improve the dielectric strength for leakage current.This cylindricality ring set also partly surrounds drive rod 26.
Each independent feature for example can be learnt from GB1 030 798.
Between the outer surface of the inboard of the pipeline section 31 of insulator and cylindrical body 11 lining 34 is arranged, this lining 34 surrounds two end surfaces of cylindrical body 11 on from said contact lever 17 to said contact lever 22 zones.
The flexible pipe that this lining is made by a kind of ethylene-propylene-diene-rubber (Ethylen-Propylen-Dien-Kautschuk) constitutes, and makes this flexible pipe remain cylindrical shape by a kind of plastic spiral, so that it can be set on the cylindrical body 11 of this vacuum tank.After removing said plastic spiral, this flexible pipe abuts on the outer surface of this cylindrical body 11 as a bellows, and is lax equably at this this flexible pipe, so that at cylindrical body 11 and end surfaces, just do not form air cushion between the switch-box 10.The length of this flexible pipe is so chosen, and promptly no longer needs this flexible pipe is handled afterwards, for example this flexible pipe is shortened.Then by automatic gelling process, with the filling epoxy resin of aromatic series or cyclic aliphatic the vacuum tank that is preheated and is added with lining is enclosed casting, play a part to make the relative core of casting mold to keep sealing at this this lining 34.
According to a kind of particularly preferred structure, this lining also can be made with silicon rubber.
Shown in the figure: this lining 34 partly covers the upper and lower end face of vacuum tank 21.At the place, lower surface, stretch the middle cavity 40 of the free end 41 of this lining 34 between vacuum tank 21 and casting resin 31.This lining 34 covers lower surface 42 this point partly and does not have great meaning.Importantly, locate this lining 34 in the lower surface and all do not surrounded by casting resin not as upper surface 43, but freely stretch out, so its free wxpansion down.When particularly making lining 34, have enough elastic buffer effects, but the performance of this free wxpansion is very necessary and useful in order to make lining with silicon rubber.
Claims (7)
1. vacuum tank, it has a cylindrical body, this cylindrical body to small part is made by a kind of insulating ceramics, it also has a fixed contact and one to be installed in a moving contact on the movable feeler lever, said contact all is arranged in the vacuum of said cylindrical body inside, said cylindrical body is all enclosed casting in casting resin until the end surfaces that it has the contact lever of moving contact to stretch, at said cylindrical body (11) and insulating material (30, one deck cushions (34) is set 31), this lining is at cylindrical body (11) and insulating material (30,31) relative motion between compensates, it is characterized in that: said lining (34) is made by a kind of flexible pipe, this flexible pipe has some makes this flexible pipe remain the intermediary of cylindricality, this diameter of flexible pipe that is retained as cylindricality is greater than the overall diameter of said cylindrical body (11), after said flexible pipe being covered on the said cylindrical body (11) and under removal intermediary state, the diameter of said flexible pipe is less than the diameter of said cylindrical body (11), so that the end of this flexible pipe covers the end face of said cylindrical body (11) at least in part.
2. vacuum tank according to claim 1, it is characterized in that: said lining (34) is made with ethylene-propylene-diene-rubber (Ethylen-Propylen-Dien-Kautschuk).
3. vacuum tank as claimed in claim 1 or 2 is characterized in that: on an end of said vacuum tank (10), stretch the middle cavity (40) of said cushions (34) between the outer surface of casting resin (31) and vacuum tank (10).
4. vacuum tank according to claim 1, it is characterized in that: described insulating ceramics is AL
2O
3
5. vacuum tank according to claim 1, it is characterized in that: described insulating ceramics is a glass.
6. vacuum tank according to claim 1, it is characterized in that: described relative motion is caused by temperature conditions.
7. vacuum tank according to claim 1, it is characterized in that: described intermediary is a kind of plastic spiral.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1997112182 DE19712182A1 (en) | 1997-03-22 | 1997-03-22 | Vacuum chamber |
| DE19712182.9 | 1997-03-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1198580A CN1198580A (en) | 1998-11-11 |
| CN1115702C true CN1115702C (en) | 2003-07-23 |
Family
ID=7824368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98108765 Expired - Lifetime CN1115702C (en) | 1997-03-22 | 1998-03-21 | Vacuum box |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0866481B1 (en) |
| CN (1) | CN1115702C (en) |
| DE (2) | DE19712182A1 (en) |
Families Citing this family (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29902214U1 (en) | 1999-01-29 | 1999-05-06 | Siemens AG, 80333 München | Vacuum switch, especially for high voltage |
| DE19921477A1 (en) * | 1999-05-08 | 2000-11-09 | Abb T & D Tech Ltd | Open air electrical switch pole section, comprises a vacuum chamber located in a cylindrical housing made of a rigid insulating material, with an outer insulating coating. |
| DE10120447B4 (en) * | 2001-04-26 | 2012-12-27 | Abb Ag | switch |
| WO2003088290A1 (en) * | 2002-04-12 | 2003-10-23 | Mitsubishi Denki Kabushiki Kaisha | Vacuum valve |
| DE10224585A1 (en) * | 2002-06-04 | 2003-12-18 | Abb Patent Gmbh | Vacuum switch comprises a housing consisting of a cast resin which contains quartz powder at least as an only added constituent |
| DE10249614B3 (en) * | 2002-10-21 | 2004-05-19 | Siemens Ag | Insulated housing with rib contour |
| DE10249615A1 (en) * | 2002-10-21 | 2004-05-13 | Siemens Ag | Manufacture of a solid-insulated switch pole |
| DE102004031089B4 (en) * | 2004-06-28 | 2012-08-30 | Abb Technology Ag | Vacuum switching chamber and method for producing the same |
| KR100859157B1 (en) * | 2004-06-28 | 2008-09-19 | 에이비비 테크놀로지 아게 | Vacuum switch chamber with protective sleeve provided by heat shrink |
| DE102004047259B3 (en) | 2004-09-24 | 2006-05-04 | Siemens Ag | Solids-insulated switch pole with front-side moving contact connection |
| DE102004047276B4 (en) * | 2004-09-24 | 2006-11-30 | Siemens Ag | Self-adhesive elastomer layer in solid-insulated switch poles |
| DE102004050786C5 (en) * | 2004-10-14 | 2008-03-06 | Siemens Ag | Coupling device with heat sink |
| DE102004060274B4 (en) * | 2004-12-15 | 2007-02-15 | Abb Patent Gmbh | Method for producing a switch for medium and high voltage engineering, and a switch itself |
| DE102005039555A1 (en) * | 2005-08-22 | 2007-03-01 | Abb Technology Ltd. | Method for producing switch pole parts for low - medium and high - voltage switchgear, as well as switch pole part itself |
| CN101297387B (en) * | 2005-10-28 | 2011-08-10 | 施恩禧电气有限公司 | Circuit interrupter assembly and method of making the same |
| DE202006007973U1 (en) * | 2006-05-10 | 2006-08-03 | Siemens Ag | Power circuit breaker to act as full-load switch has pole unit with pole head and pole carrier and vacuum switching tube in-between with fixed and moving contacts |
| DE102006042101B4 (en) | 2006-09-07 | 2008-09-25 | Switchcraft Europe Gmbh | Vacuum switch for medium and high voltages |
| DE102006062225B4 (en) * | 2006-12-22 | 2009-01-29 | Decom Gmbh | System of a solid-insulated switch pole |
| EP2034502B1 (en) | 2007-09-05 | 2017-03-22 | ABB Schweiz AG | Method for production of a pole part of a medium-voltage switching device, as well as the pole part itself |
| DE602007013785D1 (en) * | 2007-12-07 | 2011-05-19 | Abb Technology Ag | Low, medium or high voltage gearbox assembly with at least one movable contact |
| FR2925755B1 (en) | 2007-12-21 | 2012-08-03 | Schneider Electric Ind Sas | INSULATION OF VACUUM BULB TYPE CUTTING DEVICE BY OVERMOLDING |
| US7910852B2 (en) * | 2008-02-07 | 2011-03-22 | Eaton Corporation | Encapsulated pole unit conductor assembly for an encapsulated pole unit and medium voltage circuit interrupter including the same |
| FR2938966B1 (en) * | 2008-11-24 | 2012-08-03 | Areva T & D Sa | OVERMOLDING FOR VACUUM BULB |
| FR2938967B1 (en) * | 2008-11-24 | 2012-08-03 | Areva T & D Sa | OVERMOULING FOR VACUUM BULB OF SMC OR BMC COMPOSITE MATERIAL |
| DE102009020152B3 (en) * | 2009-05-06 | 2010-12-23 | Siemens Aktiengesellschaft | Isolierstoffgehäuse for receiving a vacuum interrupter and solid-insulated switch pole |
| EP2278602A1 (en) * | 2009-07-20 | 2011-01-26 | ABB Technology AG | Embedded pole part for switchgear |
| CN102024615A (en) * | 2010-12-23 | 2011-04-20 | 厦门明翰电气有限公司 | Pole column of vacuum circuit breaker |
| EP2549503A1 (en) * | 2011-07-19 | 2013-01-23 | ABB Technology AG | Vacuum interrupter with integrated double gap and single drive |
| EP2613333A1 (en) * | 2012-01-04 | 2013-07-10 | ABB Technology AG | Embedded or assembled pole part with vacuum interrupter, and method of manufacture the same |
| EP2656998A1 (en) * | 2012-04-23 | 2013-10-30 | ABB Technology AG | Pole part for medium voltage use, and method for manufacture the same |
| WO2014102699A1 (en) * | 2012-12-24 | 2014-07-03 | Abb Technology Ltd | A pole assembly of a circuit breaker in air insulated switchgear |
| FR3009643B1 (en) | 2013-08-09 | 2015-08-07 | Schneider Electric Ind Sas | VACUUM BULB, CIRCUIT BREAKER POLE COMPRISING SUCH A VACUUM BULB AND METHODS OF MAKING SUCH DEVICES |
| WO2015024230A1 (en) * | 2013-08-22 | 2015-02-26 | Dow Global Technologies Llc | Method for producing circuit-breaker pole parts |
| FR3017486B1 (en) | 2014-02-07 | 2017-09-08 | Schneider Electric Ind Sas | DEFLECTOR FOR OVERMOUTED VACUUM BULB |
| KR20180030721A (en) | 2015-08-10 | 2018-03-23 | 마리 케이 인코포레이티드 | Topical compositions |
| CN105655192A (en) * | 2016-01-13 | 2016-06-08 | 宁波耀华电气科技有限责任公司 | Manufacturing method of solid-sealed polar pole utilizing insulating sheath to cover vacuum arc-extinguishing chamber |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1030798A (en) * | 1963-11-11 | 1966-05-25 | Ass Elect Ind | Improvements relating to vacuum electric switches |
| US3812314A (en) * | 1971-08-23 | 1974-05-21 | Gen Electric | High power electrical bushing having a vacuum switch encapsulated therein |
| US3955167A (en) * | 1975-01-08 | 1976-05-04 | Mcgraw-Edison Company | Encapsulated vacuum fuse assembly |
| US4124790A (en) * | 1975-03-06 | 1978-11-07 | Mcgraw-Edison Company | Protective switch device and operating mechanism therefor |
| US4393286A (en) * | 1978-08-24 | 1983-07-12 | Tokyo Shibaura Denki Kabushiki Kaisha | Vacuum circuit breakers |
| DE8508473U1 (en) * | 1985-03-21 | 1985-05-15 | Siemens AG, 1000 Berlin und 8000 München | Encapsulation of a vacuum interrupter |
| DE9017054U1 (en) * | 1990-12-18 | 1991-03-07 | ABB Patent GmbH, 6800 Mannheim | Switch pole arrangement |
| DE9314754U1 (en) * | 1993-09-27 | 1994-03-03 | Siemens AG, 80333 München | Vacuum interrupter with an encapsulation resistant to internal pressure |
| US5808258A (en) * | 1995-12-26 | 1998-09-15 | Amerace Corporation | Encapsulated high voltage vacuum switches |
| DE19634451C1 (en) * | 1996-08-26 | 1998-01-29 | Driescher Eltech Werk | Load switch |
| MY119298A (en) * | 1996-09-13 | 2005-04-30 | Cooper Ind Inc | Encapsulated vacuum interrupter and method of making same |
-
1997
- 1997-03-22 DE DE1997112182 patent/DE19712182A1/en not_active Withdrawn
-
1998
- 1998-03-03 DE DE59813165T patent/DE59813165D1/en not_active Expired - Lifetime
- 1998-03-03 EP EP19980103652 patent/EP0866481B1/en not_active Expired - Lifetime
- 1998-03-21 CN CN 98108765 patent/CN1115702C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0866481B1 (en) | 2005-11-09 |
| CN1198580A (en) | 1998-11-11 |
| DE59813165D1 (en) | 2005-12-15 |
| EP0866481A3 (en) | 1999-11-03 |
| DE19712182A1 (en) | 1998-09-24 |
| EP0866481A2 (en) | 1998-09-23 |
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