Converter unit, particularly a combination converter
US-9478345-B2 · Oct 25, 2016 · US
Enhanced track resistant dome structure for dry-type cast coil transformer
US9847167B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9847167-B2 |
| Application number | US-201314902355-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 18, 2013 |
| Priority date | Jul 18, 2013 |
| Publication date | Dec 19, 2017 |
| Grant date | Dec 19, 2017 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A dry type cast coil transformer ( 28 ) includes a hollow body ( 29 ), a dome structure ( 26 ) extending from the body, and undulation structure ( 30 ), defining at least a portion of an outer surface of the dome structure, constructed and arranged to increase an electrical track path in the dome structure.
First claim
Opening claim text (preview).
What is claimed is: 1. A dry type cast coil transformer comprising: a hollow body having a longitudinal axis, a dome structure extending from the body, undulation structure, defining at least a portion of an outer surface of the dome structure, constructed and arranged to increase an electrical track path in the dome structure, and at least one tap connection base separate from, disposed in spaced relation with, and adjacent to the undulation structure, wherein the undulation structure comprises a plurality of alternating, continuously joined, peaks and valleys with the each peak being spaced from an adjacent peak in a direction parallel to the longitudinal axis. 2. The transformer of claim 1 , wherein the peaks or the valleys are of half-moon shape. 3. The transformer of claim 1 , wherein the undulation structure is of saw-tooth configuration. 4. The transformer of claim 1 , wherein the undulation structure is of sine wave configuration. 5. The transformer of claim 1 , wherein the undulation structure is of cosine wave configuration. 6. The transformer of claim 1 , at least one of the peaks or valleys is rounded. 7. The transformer of claim 1 , wherein the undulation structure is molded from epoxy. 8. The transformer of claim 1 , wherein the undulation structure is disposed on a plane that is below a plane of the tap connection base so that the tap connection base is raised with respect to the undulation structure. 9. The transformer of claim 1 , wherein a conductor lead extends from the tap connection base. 10. The transformer of claim 1 , wherein a plurality of tap connection bases are provided and at least some of the bases have generally rectangular shape. 11. The transformer of claim 1 , wherein a plurality of tap connection bases are provided and at least some of the bases have generally oval shape.
Assignees
Inventors
Classifications
Terminals; Tapping arrangements {for signal inductances} · CPC title
Encapsulating or impregnating (encapsulating coil and core H01F41/005) · CPC title
- H01F27/327Primary
Encapsulating or impregnating (encapsulating coil and core H01F27/022) · CPC title
Connecting leads to windings (making electric connections in general H01R43/00) · CPC title
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- What does patent US9847167B2 cover?
- A dry type cast coil transformer ( 28 ) includes a hollow body ( 29 ), a dome structure ( 26 ) extending from the body, and undulation structure ( 30 ), defining at least a portion of an outer surface of the dome structure, constructed and arranged to increase an electrical track path in the dome structure.
- Who is the assignee on this patent?
- Abb Technology Ag, Ballard Robert C, Abb Schweiz Ag
- What technology area does this patent fall under?
- Primary CPC classification H01F27/327. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 19 2017 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).