Holder for vacuum tube of on-load tap changer
US-2016343521-A1 · Nov 24, 2016 · US
Tap changer with vacuum interrupters
US9293273B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9293273-B2 |
| Application number | US-201213881607-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 4, 2012 |
| Priority date | Jan 19, 2011 |
| Publication date | Mar 22, 2016 |
| Grant date | Mar 22, 2016 |
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- Title
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- Abstract
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
The invention relates to a tap changer having vacuum interrupters for switching over between winding taps of a tapped transformer without interruption. The tap changer according to the invention having vacuum interrupters is based on the general idea of combining the functionalities of at least one conventional vacuum switching contact which switches under load and a further mechanical switching means according to the prior art in just one single vacuum interrupter with two separately moving contact systems.
First claim
Opening claim text (preview).
The invention claimed is: 1. A tap changer for uninterrupted changeover between winding taps of a tapped transformer, the tap changer comprising: two load branches for each phase to be switched and each having a main current branch having a vacuum switch that acts as a main switch and a mechanical switch connected therewith in series, a respective auxiliary current branch connected in parallel with the respective main branch and having in the current-conducting state at least one switch-over resistor and, in series therewith, a vacuum switch acting as an auxiliary switch; a common load diverter connectable not only with the main current branch but also with the auxiliary current branch of each load branch; and a single vacuum-switching tube holding first and second movable contact systems forming at least one of the vacuum switches of the main or auxiliary current branch and one of the mechanical switches. 2. The tap changer according to claim 1 , wherein the first contact system forms the mechanical switch and the second contact system forms the vacuum switch. 3. The tap changer according to claim 1 , wherein the first contact system comprises the two vacuum switches and the second contact system forms a mechanical switch.
Assignees
Inventors
Classifications
Impedances connected with contacts · CPC title
- H01H9/0038Primary
making use of vacuum switches · CPC title
having provision for tap-changing without interrupting the load current · CPC title
having fixed middle contact and two movable contacts · CPC title
by tap-changing; by rearranging interconnections of windings · CPC title
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Frequently asked questions
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- What does patent US9293273B2 cover?
- The invention relates to a tap changer having vacuum interrupters for switching over between winding taps of a tapped transformer without interruption. The tap changer according to the invention having vacuum interrupters is based on the general idea of combining the functionalities of at least one conventional vacuum switching contact which switches under load and a further mechanical switchin…
- Who is the assignee on this patent?
- Albrecht Wolfgang, Hammer Christian, Heynen Christoph, and 14 more
- What technology area does this patent fall under?
- Primary CPC classification H01H9/0038. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 22 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).