SE9700338D0 - Axial air cooling of transformer - Google Patents
Axial air cooling of transformerInfo
- Publication number
- SE9700338D0 SE9700338D0 SE9700338A SE9700338A SE9700338D0 SE 9700338 D0 SE9700338 D0 SE 9700338D0 SE 9700338 A SE9700338 A SE 9700338A SE 9700338 A SE9700338 A SE 9700338A SE 9700338 D0 SE9700338 D0 SE 9700338D0
- Authority
- SE
- Sweden
- Prior art keywords
- winding
- transformer
- turn
- core
- spacers
- Prior art date
Links
Classifications
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2876—Cooling
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Transformer Cooling (AREA)
Abstract
The power transformer comprises a transformer core wound with a high-voltage cable (2). The cable comprises a core having a number of strands, an inner semiconducting layer surrounding the core, an insulating layer surrounding the inner semiconducting layer, and an outer semiconducting layer surrounding the insulating layer. The winding is provided with spacers (4) arranged to separate each cable turn in radial direction in the winding in order to create axial cylindrical cooling ducts (3). Preferably, the spacers are arranged axially between each turn of the winding. Preferably, six spacers are arranged axially between each turn of the winding. The transformer winding is further provided with a fan cowl sealing against one end of the outermost turn of the winding, to which a fan is connected and arranged to either force gas, such as air, through or withdraw gas, such as air, from all turns of the winding axially to the transformer core.
Priority Applications (15)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9700338A SE511360C2 (en) | 1997-02-03 | 1997-02-03 | Air-cooled cable-wound power transformer |
SE9704414A SE9704414D0 (en) | 1997-02-03 | 1997-11-28 | Axial air cooling and transformer |
NZ337098A NZ337098A (en) | 1997-02-03 | 1998-02-02 | Axial air-cooling of transformers |
EA199900703A EA001869B1 (en) | 1997-02-03 | 1998-02-02 | Axial-cooling of transformers |
CN98801964A CN1244283A (en) | 1997-02-03 | 1998-02-02 | Axial air-cooling of transformers |
AU58906/98A AU724972B2 (en) | 1997-02-03 | 1998-02-02 | Axial air-cooling of transformers |
CA002276620A CA2276620A1 (en) | 1997-02-03 | 1998-02-02 | Axial air-cooling of transformers |
PL98334617A PL334617A1 (en) | 1997-02-03 | 1998-02-02 | Transformer axial cooling system |
JP53279798A JP2001509959A (en) | 1997-02-03 | 1998-02-02 | Axial air cooling of transformers |
BR9807134-3A BR9807134A (en) | 1997-02-03 | 1998-02-02 | Power cable coil transformer and air cooling method. |
KR1019997006652A KR20000070417A (en) | 1997-02-03 | 1998-02-02 | Axial air-cooling of transformers |
PCT/SE1998/000155 WO1998034238A1 (en) | 1997-02-03 | 1998-02-02 | Axial air-cooling of transformers |
TR1999/01700T TR199901700T2 (en) | 1997-02-03 | 1998-02-02 | Central air cooling of transformers |
EP98902352A EP1016098A1 (en) | 1997-02-03 | 1998-02-02 | Axial air-cooling of transformers |
NO993673A NO993673L (en) | 1997-02-03 | 1999-07-28 | Axial air cooling of transformers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9700338A SE511360C2 (en) | 1997-02-03 | 1997-02-03 | Air-cooled cable-wound power transformer |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9700338D0 true SE9700338D0 (en) | 1997-02-03 |
SE9700338L SE9700338L (en) | 1998-08-04 |
SE511360C2 SE511360C2 (en) | 1999-09-20 |
Family
ID=20405626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9700338A SE511360C2 (en) | 1997-02-03 | 1997-02-03 | Air-cooled cable-wound power transformer |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE511360C2 (en) |
-
1997
- 1997-02-03 SE SE9700338A patent/SE511360C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE9700338L (en) | 1998-08-04 |
SE511360C2 (en) | 1999-09-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |