Cooling device of power transformer
US-2016372249-A1 · Dec 22, 2016 · US
Transformer winding with cooling channel
US9208939B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9208939-B2 |
| Application number | US-201313934750-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 3, 2013 |
| Priority date | Jan 4, 2011 |
| Publication date | Dec 8, 2015 |
| Grant date | Dec 8, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
At least two winding modules nested hollow-cylindrically one inside the other and extending around a common winding axis, wherein said winding modules are spaced radially apart from one another within at least one hollow-cylindrical cooling channel arranged therebetween by means of insulation strips, wherein the insulation strips have a cross-sectional form which avoid a surface profile radially with respect to the winding axis, the insulation strips including one of a fiber-reinforced epoxy, polyester resin, or from an unreinforced thermoplastic material.
First claim
Opening claim text (preview).
What is claimed is: 1. A transformer winding comprising: at least two winding modules nested hollow-cylindrically one inside the other and extending around a common winding axis, wherein said winding modules are spaced radially apart from one another within at least one hollow-cylindrical air cooling channel arranged therebetween through insulation strips, wherein the insulation strips extend along an axial length of said winding modules and have a cross-sectional form that predominately avoids a surface profile that is radial with respect to the winding axis, the insulation strips including one of a fiber-reinforced epoxy, polyester resin, or from an unreinforced thermoplastic material, wherein the at least one cooling channel has a radially inner wall and a radially outer wall, and wherein the insulation strips have one of an X-shaped or Y-shaped cross section. 2. The transformer winding as claimed in claim 1 , wherein the insulation strips have a cross section with saw-tooth-like outer edges. 3. The transformer winding as claimed in claim 1 , wherein the insulation strips have a flattened form, at least one of a radially inner end, and a radially outer end. 4. The transformer winding as claimed in claim 1 , wherein the winding modules are galvanically connected to one another. 5. A transformer, comprising at least one transformer core and one transformer winding as claimed in one of claim 1 .
Assignees
Inventors
Classifications
the insulation forming channels for circulation of the fluid · CPC title
- H01F27/2876Primary
Cooling (cooling transformers and inductances in general H01F27/08) · CPC title
- H01F27/085Primary
Cooling by ambient air · CPC title
Dry-type transformer with encapsulated foil winding, e.g. windings coaxially arranged on core legs with spacers for cooling and with three phases · CPC title
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- What does patent US9208939B2 cover?
- At least two winding modules nested hollow-cylindrically one inside the other and extending around a common winding axis, wherein said winding modules are spaced radially apart from one another within at least one hollow-cylindrical cooling channel arranged therebetween by means of insulation strips, wherein the insulation strips have a cross-sectional form which avoid a surface profile radiall…
- Who is the assignee on this patent?
- Abb Technology Ag
- What technology area does this patent fall under?
- Primary CPC classification H01F27/2876. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 08 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).