System and method for magnetizing a transformer in an electrical system prior to energizing the electrical system
US-9337762-B1 · May 10, 2016 · US
Methods and apparatus for soft operation of transformers using auxiliary winding excitation
US10135372B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10135372-B2 |
| Application number | US-201715421819-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 1, 2017 |
| Priority date | Dec 15, 2014 |
| Publication date | Nov 20, 2018 |
| Grant date | Nov 20, 2018 |
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Abstract
Official abstract text for this publication.
An apparatus includes a magnetizing circuit configured to be coupled to a transformer and to selectively provide a magnetizing current to the transformer and a control circuit configured to cause the magnetizing circuit to provide the magnetizing current following disconnection of the primary winding of the transformer from the power source. The magnetizing circuit may be configured to provide the magnetizing current from a first source following disconnection of the primary winding from a second source. The transformer may include a first transformer and the apparatus may further include a second, higher impedance transformer coupled between the second source and the first transformer. In further embodiments, the magnetizing circuit may include a solid-state converter.
First claim
Opening claim text (preview).
That which is claimed: 1. A method comprising: providing a magnetizing current to a transformer from a first source following disconnection of a primary winding from a second source. 2. The method of claim 1 , wherein the transformer comprises a first transformer and wherein the first source comprises a second transformer coupled between the second source and the first transformer. 3. The method of claim 2 , wherein the second transforme…
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Frequently asked questions
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- What does patent US10135372B2 cover?
- An apparatus includes a magnetizing circuit configured to be coupled to a transformer and to selectively provide a magnetizing current to the transformer and a control circuit configured to cause the magnetizing circuit to provide the magnetizing current following disconnection of the primary winding of the transformer from the power source. The magnetizing circuit may be configured to provide …
- Who is the assignee on this patent?
- Eaton Corp, Eaton Intelligent Power Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02P13/12. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 20 2018 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).