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Tank-type circuit breaker
US9190232B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9190232-B2 |
| Application number | US-201214233305-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 24, 2012 |
| Priority date | Sep 7, 2011 |
| Publication date | Nov 17, 2015 |
| Grant date | Nov 17, 2015 |
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Abstract
Official abstract text for this publication.
Capacitors ( 5 a, 5 b ) are provided in the insulators of bushings ( 4 a, 4 b ), respectively. One ends of the capacitors ( 5 a, 5 b ) are connected to central conductors ( 3 a, 3 b ) side, and the other ends are connected to a tank ( 1 ) side at the ground potential. When a discharge signal from the outside of the tank ( 1 ) reaches the capacitors ( 5 a, 5 b ) through the central conductors ( 3 a, 3 b ), the capacitors ( 5 a, 5 b ) work as a filter to attenuate and prevent the signal in the frequency band of the discharge waveform from propagating to the inside of the tank ( 1 ). When an antenna ( 7 ) placed in the tank ( 1 ) receives a signal in the frequency band of the discharge waveform, a discharge detection unit ( 20 ) determines that a discharge inside the tank has been detected.
First claim
Opening claim text (preview).
The invention claimed is: 1. A tank-type circuit breaker comprising: a tank filled with an insulating medium; a current interruption unit placed in the tank; first and second bushings connected to the input and output sides of the current interruption unit, respectively, and placed across the outside and inside of the tank; first and second low-pass filters placed around central conductors of the first and second bushings and electrically connected to a ground of the tank, r…
Assignees
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Classifications
- H02B13/0655Primary
Electricity · mapped topic
- H01H33/26Primary
Electricity · mapped topic
Electricity · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9190232B2 cover?
- Capacitors ( 5 a, 5 b ) are provided in the insulators of bushings ( 4 a, 4 b ), respectively. One ends of the capacitors ( 5 a, 5 b ) are connected to central conductors ( 3 a, 3 b ) side, and the other ends are connected to a tank ( 1 ) side at the ground potential. When a discharge signal from the outside of the tank ( 1 ) reaches the capacitors ( 5 a, 5 b …
- Who is the assignee on this patent?
- Abe Junichi, Sato Shinji, Tanabe Tomoko, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H02B13/0655. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 17 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).