Temporary energy storage for voltage supply interruptions
US-2017271975-A1 · Sep 21, 2017 · US
Method and arrangement for detecting an internal failure in H-bridge connected capacitor bank
US8972209B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8972209-B2 |
| Application number | US-201313968814-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 16, 2013 |
| Priority date | Feb 16, 2011 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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- Title
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Abstract
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A method for detecting an internal failure in a capacitor bank connected in one phase or more phases respectively to a power system. The capacitor bank includes a plurality of capacitor units. Each of the capacitor units includes a plurality of capacitor elements connected in parallel and/or series. The capacitor units are further divided into two strings and a current transformer is arranged in the midpoints of the two strings so that the capacitor units are further divided into four quadrants and the internal failure(s) may occur in one or more capacitor elements or units and involves one or more capacitor quadrants. The method includes initiating an alarm and/or a trip signal when the determined total number of internal elements failures exceeds a first or a second threshold value.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for detecting an internal failure in a capacitor bank connected in one phase or more phases respectively to a power system, wherein the capacitor bank comprises a plurality of capacitor units, each of the capacitor units comprising a plurality of capacitor elements connected in parallel and/or series and wherein the capacitor units are divided into two strings and a current transformer is arranged in the midpoints of the two strings so that the capac…
Assignees
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Classifications
- H02H7/16Primary
Electricity · mapped topic
- G01R31/64Primary
Physics · mapped topic
- G01R31/028Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US8972209B2 cover?
- A method for detecting an internal failure in a capacitor bank connected in one phase or more phases respectively to a power system. The capacitor bank includes a plurality of capacitor units. Each of the capacitor units includes a plurality of capacitor elements connected in parallel and/or series. The capacitor units are further divided into two strings and a current transformer is arranged i…
- Who is the assignee on this patent?
- Gajic Zoran, Wang Jianping, Ibrahim Mustafa, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H02H7/16. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 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).