On-load tap changer

US9412527B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9412527-B2
Application numberUS-201113809917-A
CountryUS
Kind codeB2
Filing dateJul 7, 2011
Priority dateAug 18, 2010
Publication dateAug 9, 2016
Grant dateAug 9, 2016

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  1. Title

    What the patent document calls the invention.

  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An on-load tap changer for uninterrupted switching between different winding taps of a regulating winding of a tapped transformer in a transformer housing has at least one selector inside the housing for power-free selection of the respective winding tap of a tapped transformer that is to be switched over to and directly juxtaposed with the winding taps. It also has, spatially separate from the selector, a load-changeover switch for the actual switching from the connected to the new, preselected winding tap.

First claim

Opening claim text (preview).

The invention claimed is: 1. An on-load tap changer for uninterrupted switching between different winding taps of a regulating winding of a tapped transformer in a transformer housing, the tap changer comprising: at least one selector inside the housing in the immediate spatial vicinity of and directly juxtaposed with the winding taps of the regulating winding of the tapped transformer for power-free selection of a one of the winding taps of the tapped transformer that is to be switched over to, and a load-changeover switch inside the housing for the actual switching from a connected one of the winding taps to the selected one winding tap, the at least one selector and the load-changeover switch being spatially separate from one another. 2. The on-load tap changer according to claim 1 , wherein the at least one selector and the load-changeover switch are drivable by a common linkage. 3. The on-load tap changer according to claim 2 , wherein the linkage extends through a lateral wall into the transformer housing and extends at least partly therein. 4. The on-load tap changer according to claim 1 , wherein the at least one selector and the load-changeover switch are actuatable by a linear motor or a torque motor. 5. The on-load tap changer according to claim 1 , wherein there is a plurality of selectors of identical construction.

Assignees

Inventors

Classifications

  • Casings; Mountings; Disposition in transformer housing · CPC title

  • H01H9/0005Primary

    Tap change devices · CPC title

  • having provision for tap-changing without interrupting the load current · CPC title

  • Voltage selector switches · CPC title

  • Details of switching devices, not covered by groups H01H1/00 - H01H7/00 · CPC title

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Frequently asked questions

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What does patent US9412527B2 cover?
An on-load tap changer for uninterrupted switching between different winding taps of a regulating winding of a tapped transformer in a transformer housing has at least one selector inside the housing for power-free selection of the respective winding tap of a tapped transformer that is to be switched over to and directly juxtaposed with the winding taps. It also has, spatially separate from the…
Who is the assignee on this patent?
Donhauser Juergen, Meisel Roland, Pircher Christian, and 1 more
What technology area does this patent fall under?
Primary CPC classification H01H9/0005. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Aug 09 2016 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).