CN101426992A - Ventilated transformer enclosure - Google Patents
Ventilated transformer enclosure Download PDFInfo
- Publication number
- CN101426992A CN101426992A CN200580013208.6A CN200580013208A CN101426992A CN 101426992 A CN101426992 A CN 101426992A CN 200580013208 A CN200580013208 A CN 200580013208A CN 101426992 A CN101426992 A CN 101426992A
- Authority
- CN
- China
- Prior art keywords
- airflow
- transformer case
- transformer
- shell
- wall
- 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.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
- E04H5/04—Transformer houses; Substations or switchgear houses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/025—Constructional details relating to cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B7/00—Enclosed substations, e.g. compact substations
- H02B7/06—Distribution substations, e.g. for urban network
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Architecture (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Patch Boards (AREA)
- Transformer Cooling (AREA)
Abstract
A transformer enclosure includes a base structure, a wall secured to the base structure, and an airflow aperture located in a lower portion of the wall. A roof structure is secured to the wall and has an overhang portion extending beyond the wall outward from the enclosure. The overhang portion has a roof top panel and a roof bottom panel. The roof bottom panel has a roof airflow aperture. The transformer enclosure can include means for enclosing a volume and airflow means for cooling a transformer within the enclosed volume, where the airflow means includes a plurality of opposing channels.
Description
Technical field
The present invention relates generally to transformer case.More specifically, the present invention relates to ventilated transformer enclosure.
Background technology
Transformer and other power equipments cover in the shell usually.Shell is used for a variety of causes; such as providing mechanical protection to transformer as preventing the safety measure of people or animal pick-up current; provide convenience for several electric devices and to install and inner distribution, and protect electric device to avoid the influence of environment, for example: rain, snow, temperature etc.
Transformer case often gathers the heat that is produced by transformer, and this may bring up to the temperature in the shell undesirable level and cause destruction to electric device, perhaps fire what is worse.In order to compensate, shell can comprise the air cooling equipment of certain form with the hot air in the discharging shell, and use from housing exterior replace it than cold air, thereby portion keeps the acceptable temperature in the enclosure.The structure of these shells must allow enough cooling blasts and make wherein electric device be not easy to be subjected to the influence of environment.
Summary of the invention
In one aspect of the invention, transformer case comprises foundation structure, is fixed to the wall on the described foundation structure and is arranged in the airflow hole of the bottom of described wall.A roof construction is fixed to described wall and has the overhang of stretching out described wall from described shell outwardly.Described overhang has upper plate and lower roof plate.Lower roof plate has a top airflow hole.
In another aspect of the present invention, transformer case comprises the device that encapsulates a volume and is used to cool off the airflow apparatus of the transformer within the volume of encapsulation.Described airflow apparatus is included in the airflow hole of downside of overhang of the roof construction of described shell.
In another aspect of the present invention, transformer case comprises the device that encapsulates a volume and is used to cool off the airflow apparatus of the transformer within the volume of encapsulation.Described airflow apparatus comprises a plurality of relative passages.
Description of drawings
By reading this manual and accompanying drawing thereof, for the ordinary skill in the art, it is clear that objects and advantages of the present invention will become, and identical label is used to represent components identical in the accompanying drawing, wherein:
Fig. 1 represents an embodiment according to the transformer case of an embodiment of the invention; With
Fig. 2 represents the lateral view according to the shell of an embodiment of the invention.
Fig. 3 A-C represents some representative configuration according to the airflow hole of an embodiment of the invention.
Fig. 4 represents the airflow hole that has air flow regulator according to an embodiment of the invention.
Fig. 5 represents to be configured to the airflow hole of the relative passage of a plurality of biasings.
Fig. 6 represents to have according to an embodiment of the invention the shell of one or more cooling fans.
The specific embodiment
Transformer case according to an embodiment comprises the device that is used to encapsulate a volume.Fig. 1 represents an embodiment according to the transformer case 100 of an embodiment of the invention.Described transformer case 100 comprises foundation structure 102.Described foundation structure 102 can be included in the device that supports the transformer (not shown) in the shell, and for example support 104.One or more walls 110 are fixed on the foundation structure 102, normally at 112 places, bottom of described wall 110.At this, the bottom 112 of described wall 110 can be near any part the bottom of described wall, not necessarily on the base.Described wall 110 preferably is approximately perpendicular to described foundation structure 102, and 90 ° angle roughly for example is for example between 80 °-100 °.Be appreciated that in other embodiments the angle that described wall 110 and foundation structure 102 form roughly is different from 90 °, for example 30 °, 45 °, 60 °, 120 °, 135 °, 150 °, and any different angle therebetween.Described wall 110 is preferably fixed around the girth of described foundation structure 102.Alternatively, described wall 110 is fixed on any position of described foundation structure 102.
Though figure 1 illustrates rectangular enclosure, should be appreciated that described shell wall 110 can form the Any shape in the multiple geometry, such as polygon, i.e. triangle, square, pentagon etc. perhaps can be circular, avette, ellipses etc.And, can adopt the wall 110 of arbitrary number.The support member (not shown) that extends from described foundation structure 102 is used to described shell 100 that structural framing is provided alternatively and/or supports described wall 110.
Described shell 100 can preferably hold big transformer, rated power 113KVA-15 for example, the transformer of 000KVA.These transformers produce a large amount of heats.For example, it is not unusual reaching 220 ℃ for transformer.
Described shell 110 preferably meets the 250-1997 of AEM of State Grid (NEMA) standard.For example, under this standard, thereby 3R type Shell structure is indoor or outdoor for preventing that equipment that the people unexpectedly contacts encapsulation from providing protection to a certain degree for being used for; For foul, rain, rain and snow mixed and the snow that prevents to fall into provides to a certain degree protection; Can not be subjected to the destruction of the formation ice on the described shell yet.Described shell can also be configured to satisfy other private type 250 standards, such as Class1,2,3,3S, 4,4X and 5.
Described shell 100 comprises the airflow apparatus that is used to cool off the transformer in the volume of described encapsulation.In one embodiment, described airflow apparatus is the airflow hole 150 at the downside of the overhang 142 of the roof construction 140 of described shell 110.Described roof construction 140 is fixed on the described wall 110, and has the overhang 142 of stretching out described wall 110 from described shell outwardly.Described roof construction 140 has upper plate 144, and described overhang has lower roof plate 146.Described lower roof plate comprises described top airflow hole 150.
At least one wall 110 comprises airflow hole 120, preferably in the bottom of described wall 110.At this, the bottom of described wall 110 meaning is most of or all holes are positioned in the Lower Half of described wall 110.Some wall 110 does not have the hole, and for example end wall 130.In Fig. 1, though show three walls 110 in the front of described shell 100, each cornice has airflow hole 120, and some in these walls 110 can not comprise airflow hole 120.The sidepiece of described shell 100 and the wall at rear portion are too.
Referring to Fig. 2, the lateral view according to the shell 200 of one embodiment of the present invention is shown.Described shell 200 comprises the device that is used to cool off the transformer 215 in the encapsulation volume 210 of shell 200.The heat that is produced by transformer 215 causes convection current.That is, the heat that is discharged by transformer 215 rises to the top of encapsulation volume 210 and by top airflow hole 250 dischargings on the downside of the overhang of roof construction 244.Air that will be colder by the pressure drop that causes of hot air of discharging sucks in the encapsulation volumes 210 by airflow hole 220.As long as transformer 215 adds hot air, this process just continues, and this has caused air-flow to pass encapsulation volume 210 continuously and has crossed (with passing) transformer 215, thereby has cooled off transformer.Also illustrate at Fig. 2, the other side of described shell 200 comprises that alternatively additional air flow hole 221 and/or top airflow hole 251 pass the air-flow of encapsulation volume 210 with increase and/or air-flow be provided on the other side of transformer 215.Airflow hole 220 preferably is positioned to the center that is directed to air-flow in the described shell 200 and passes transformer coil (cast coil).
Some representative configuration of Fig. 3 A-C explanation airflow hole 220 and/or top airflow hole 250.According to the heat, encapsulation volume, room temperature or the external temperature that produce and the calculating of other Considerations, the size in hole 250 forms and allows enough air to pass shell.The hole can be a single radial cut, perhaps can be many openings 301.The hole can be the opening on wall or roof construction, perhaps can be formed on the ventilation panel that is fixed on wall or the roof construction.The hole can be Any shape and quantity.For example, can form the hole 311 of one or more slit-shaped.
In another embodiment shown in Fig. 3 C, the hole is configured to a plurality of biasing members on ventilation panel.Ventilation panel comprises a framework 321 and one or more parts 322 of putting towards a lateral deviation of described framework 321, and, in optional mode, towards one or more parts 323 of the opposite side of framework 321 biasing.Described biasing member 322,323 staggers opposite to each other and allows the bias structure that air enters provides the favorable mechanical protection simultaneously again to form.Alternatively, this bias structure can be by crooked or stagger and be in the member of relative direction and the formation that (do not have framework) on the surface of shell itself.
In a preferred implementation shown in Figure 5, the hole is configured to the relative passage 500,502 of a plurality of biasings.One or more passages 500 comprise outstanding conducting element 501 and are configured in the face of one or more passages in opposite directions 502 that passage 502 also comprises outstanding conducting element 503.Shown passage the 501, the 502nd, the biasing in case air shown in arrow 505 around as described in conducting element 501,503 flow through passage 501,502.Because the S shape direction 505 of described biasing and air-flow, be prevented from flowing through the hole such as the object of snow, rain, foul and other obstructions.In addition, the turbulent flow that forms around conducting element 501,503 has limited entering of exterior object further.
In another embodiment, as shown in Figure 4, airflow hole 220 and/or top airflow hole 250 have air flow regulator so that increase and reduce the size in hole changeably, thereby increase and reduce air-flow.The rotatably attached framework 410 of one or more members 400, described framework 410 may simply be around case surface, and is connected to control device 430 to change the angle of member 400 when side (side-to-side) power 440 is applied on this connector when side by a connector 420.The angle of member 400 changes has regulated the size in whole hole, thereby has regulated air-flow.Control device 430 can be manual, and for example handle is perhaps automatic, and for example motor drives.The structure of Fig. 4 is exemplary.A plurality of other structures can be used to realize to regulate the similar functional of air-flow.
Fig. 6 has illustrated another embodiment of the invention.In this embodiment, one or more cooling fans 610,620 are installed to airflow hole and/or the top airflow hole is neighbouring to increase the air-flow by shell.Alternatively, cooling fan 610,620 can only be installed near the hole or in the enclosure any position that can increase air-flow can be installed.
Shell according to the present invention is suitable for outdoor utility.Airflow hole is positioned at the downside of roof construction.This structure allow air communication to cross and the influence that makes environment simultaneously such as: rain, snow, foul, blow the influence that rain etc. infiltrates the shell from the top airflow hole and minimize.
Those of ordinary skill in the art will appreciate that the present invention can implement with various special modes and do not depart from its key feature.Disclosed embodiment should be considered to illustrative but not restricted type in all cases.Scope of the present invention is represented by appended claim, rather than aforesaid manual, is included in the claim in its meaning that is equal to and the variation within the scope.
Should emphasize that the term that uses " comprises " existence that is used to specify described feature, step or parts in this manual and claim, but the existence of one or more other features, step, parts or its combination is not got rid of in the use of these terms.
Claims (23)
1. transformer case comprises:
Foundation structure;
Be fixed to the wall on the described foundation structure;
Be positioned at the airflow hole of the bottom of described wall; With
Be fixed on the described wall and have the roof construction that stretches out the overhang of described wall from described shell outwardly, described overhang has upper plate and lower roof plate, and described lower roof plate has the top airflow hole.
2. transformer case as claimed in claim 1 comprises:
A plurality of walls, at least one wall are included in the airflow hole at place, its underpart.
3. shell as claimed in claim 1, one of wherein described at least airflow hole and described top airflow hole comprise a plurality of airflow holes.
4. transformer case as claimed in claim 1, one of wherein described at least airflow hole and described top airflow hole comprise the ventilation panel with a plurality of airflow holes.
5. transformer case as claimed in claim 1, one of wherein described at least airflow hole and described top airflow hole comprise biasing member.
6. transformer case as claimed in claim 1, wherein described at least airflow hole comprises a plurality of relative passages with one of described top airflow hole.
7. transformer case as claimed in claim 1, one of wherein described at least airflow hole and described top airflow hole comprise air flow regulator.
8. transformer case as claimed in claim 7, wherein said air flow regulator are that motor drives.
9. transformer case as claimed in claim 1 comprises the fan that is configured to increase by the air-flow of shell.
10. transformer case comprises:
The device of a volume of encapsulation; With
Be used to cool off the airflow apparatus of the transformer within described encapsulation volume,
Wherein said airflow apparatus is included in the airflow hole of downside of overhang of the roof construction of described shell.
11. transformer case as claimed in claim 9 comprises:
Be used to be supported on the device of the described transformer within the described encapsulation volume.
12. transformer case as claimed in claim 9, wherein said airflow apparatus comprises:
Be positioned at the airflow hole on the wall of described shell.
13. transformer case as claimed in claim 9, wherein said airflow apparatus comprises:
Be configured to increase fan by the air-flow of shell.
14. transformer case as claimed in claim 9, the wherein said device that is used for encapsulation volume comprises:
A plurality of walls, at least one wall is included in the airflow hole of its underpart.
15. transformer case as claimed in claim 9, wherein said airflow apparatus comprises:
A plurality of airflow holes.
16. transformer case as claimed in claim 9, wherein said airflow apparatus comprises:
Ventilation panel with a plurality of airflow holes.
17. transformer case as claimed in claim 9, wherein said airflow apparatus comprises:
Biasing member.
18. transformer case as claimed in claim 1, wherein said airflow apparatus comprises:
A plurality of relative passages.
19. transformer case as claimed in claim 9, wherein said airflow apparatus comprises:
Air flow regulator.
20. being motors, transformer case as claimed in claim 19, wherein said air flow regulator drive.
21. transformer case as claimed in claim 10, wherein said shell meets the NEMA250-1997 standard.
22. transformer case as claimed in claim 21, wherein said shell are the 3R type.
23. a transformer case comprises:
Be used to encapsulate the device of a volume; With
Be used to cool off the airflow apparatus of the transformer within the described encapsulation volume,
Wherein said airflow apparatus comprises a plurality of relative passages.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/835,223 | 2004-04-29 | ||
| US10/835,223 US20050257439A1 (en) | 2004-04-29 | 2004-04-29 | Ventilated transformer enclosure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101426992A true CN101426992A (en) | 2009-05-06 |
Family
ID=35320821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200580013208.6A Pending CN101426992A (en) | 2004-04-29 | 2005-04-29 | Ventilated transformer enclosure |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20050257439A1 (en) |
| EP (1) | EP1745184A4 (en) |
| CN (1) | CN101426992A (en) |
| BR (1) | BRPI0510285A (en) |
| CA (1) | CA2564782C (en) |
| WO (1) | WO2005108714A2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103430253A (en) * | 2011-02-28 | 2013-12-04 | Abb公司 | Arc-resistant dry type transformer enclosure having arc channels |
| CN103430255A (en) * | 2011-02-28 | 2013-12-04 | Abb公司 | Method of providing arc-resistant dry type transformer enclosure |
| CN103430254A (en) * | 2011-02-28 | 2013-12-04 | Abb公司 | Arc-resistant dry type transformer enclosure having arc fault damper apparatus |
| CN104150331A (en) * | 2014-08-07 | 2014-11-19 | 广东合普动力科技有限公司 | Permanent magnet synchronization tractor with ventilation structure |
| CN103430254B (en) * | 2011-02-28 | 2016-11-30 | Abb公司 | There is the arc-resistant dry type transformer enclosure of fault electric arc damper device |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES1053250Y (en) * | 2002-11-06 | 2003-07-01 | Twelcon Electronica S L | SPECIAL URBAN TRANSFORMATION CENTER. |
| JP2006286931A (en) * | 2005-03-31 | 2006-10-19 | Tdk Corp | Thin film device |
| US20090229194A1 (en) * | 2008-03-11 | 2009-09-17 | Advanced Shielding Technologies Europe S.I. | Portable modular data center |
| CN101761252B (en) * | 2008-12-23 | 2012-05-02 | 贵阳镁铝设计研究院有限公司 | Mill construction of overhanging type air inlet ventilation outer wall |
| PL216600B1 (en) * | 2009-05-25 | 2014-04-30 | ABB Spółka z ograniczoną odpowiedzialnością | Housing for modular switchgear for power substations for secondary distribution |
| CN102759963A (en) * | 2011-04-28 | 2012-10-31 | 鸿富锦精密工业（深圳）有限公司 | Server case |
| JP5811609B2 (en) * | 2011-06-14 | 2015-11-11 | 富士電機株式会社 | Transformer cooling system |
| CN103249275A (en) * | 2012-02-07 | 2013-08-14 | 鸿富锦精密工业（深圳）有限公司 | Heat dissipation system |
| US8689932B2 (en) * | 2012-05-17 | 2014-04-08 | General Electric Company | On-base enclosure |
| JP6088157B2 (en) * | 2012-05-25 | 2017-03-01 | 東芝三菱電機産業システム株式会社 | Switchboard and cooling method thereof |
| US20140001932A1 (en) * | 2012-06-29 | 2014-01-02 | Nathan L. Westby | Modular Outdoor Enclosure and Gravity Damper System |
| WO2014172886A1 (en) * | 2013-04-26 | 2014-10-30 | General Electric Company | Switchgear housing including pressure relief member |
| US9661778B1 (en) | 2014-06-27 | 2017-05-23 | Amazon Technologies, Inc. | Deployable barrier for data center |
| US10408865B2 (en) | 2014-11-07 | 2019-09-10 | GRID20/20, Inc. | Power monitor protective shroud |
| JP6443627B2 (en) * | 2015-05-25 | 2018-12-26 | 富士電機株式会社 | Transformer cooling system |
| US10143116B2 (en) * | 2016-05-13 | 2018-11-27 | Toshiba International Corporation | Outdoor UPS unit system and method |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US524188A (en) * | 1894-08-07 | Electeic transformer | ||
| US612122A (en) * | 1898-10-11 | Electrical converter | ||
| US2295414A (en) * | 1939-08-03 | 1942-09-08 | Westinghouse Electric & Mfg Co | Transformer |
| US2459322A (en) * | 1945-03-16 | 1949-01-18 | Allis Chalmers Mfg Co | Stationary induction apparatus |
| US2751562A (en) * | 1951-12-13 | 1956-06-19 | Gen Electric | Dry-type transformer |
| US2927736A (en) * | 1954-04-23 | 1960-03-08 | Frederick S Rohatyn | Apparatus for cooling a device which produces heat during the operation thereof |
| US3360752A (en) * | 1966-03-14 | 1967-12-26 | R E Uptegraff Mfg Company | Transformer housing construction |
| NO120600B (en) * | 1967-09-26 | 1970-11-09 | Bjoennes Jacobsen Jacob | |
| DE6916926U (en) * | 1969-04-26 | 1969-10-23 | Sachsenwerk Licht Und Kraft A | FACTORY-READY, PROFILE ALUMINUM CLADDED NETWORK STATION. |
| US3951336A (en) * | 1974-08-28 | 1976-04-20 | Miller And Sons Structures, Inc. | Ventilation system for livestock housing |
| US4146112A (en) * | 1977-10-31 | 1979-03-27 | General Electric Company | Sound reducing baffle for electrical apparatus |
| US4292927A (en) * | 1979-06-01 | 1981-10-06 | Farmstead Industries, Div. Of Farmhand, Inc. | Swine shelter ventilating system |
| USD268952S (en) * | 1980-11-26 | 1983-05-10 | Standex International Corporation | Combined fresh air make-up and temperature control unit |
| US4609126A (en) * | 1985-12-05 | 1986-09-02 | Gte Communications Systems Corporation | Venting cap for apparatus housing |
| US6365826B1 (en) * | 1999-12-22 | 2002-04-02 | General Electric Company | Waterproof enclosure for electrical devices |
| US6220956B1 (en) * | 2000-02-14 | 2001-04-24 | Jay T. Kilian | Soffit fan |
-
2004
- 2004-04-29 US US10/835,223 patent/US20050257439A1/en not_active Abandoned
-
2005
- 2005-04-29 EP EP05740274A patent/EP1745184A4/en not_active Withdrawn
- 2005-04-29 WO PCT/US2005/014921 patent/WO2005108714A2/en not_active Application Discontinuation
- 2005-04-29 BR BRPI0510285-5A patent/BRPI0510285A/en not_active IP Right Cessation
- 2005-04-29 CN CN200580013208.6A patent/CN101426992A/en active Pending
- 2005-04-29 CA CA2564782A patent/CA2564782C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103430253A (en) * | 2011-02-28 | 2013-12-04 | Abb公司 | Arc-resistant dry type transformer enclosure having arc channels |
| CN103430255A (en) * | 2011-02-28 | 2013-12-04 | Abb公司 | Method of providing arc-resistant dry type transformer enclosure |
| CN103430254A (en) * | 2011-02-28 | 2013-12-04 | Abb公司 | Arc-resistant dry type transformer enclosure having arc fault damper apparatus |
| CN103430254B (en) * | 2011-02-28 | 2016-11-30 | Abb公司 | There is the arc-resistant dry type transformer enclosure of fault electric arc damper device |
| CN103430255B (en) * | 2011-02-28 | 2016-12-07 | Abb公司 | The method that arc-resistant dry type transformer enclosure is provided |
| CN103430253B (en) * | 2011-02-28 | 2017-02-15 | Abb公司 | Arc-resistant dry type transformer enclosure having arc channels |
| CN104150331A (en) * | 2014-08-07 | 2014-11-19 | 广东合普动力科技有限公司 | Permanent magnet synchronization tractor with ventilation structure |
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0510285A (en) | 2007-10-30 |
| US20050257439A1 (en) | 2005-11-24 |
| WO2005108714A2 (en) | 2005-11-17 |
| CA2564782A1 (en) | 2005-11-17 |
| CA2564782C (en) | 2011-04-05 |
| EP1745184A2 (en) | 2007-01-24 |
| WO2005108714A3 (en) | 2009-04-09 |
| EP1745184A4 (en) | 2011-04-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090506 |