Title:
GAS CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2023/157079
Kind Code:
A1
Abstract:
Provided is a gas circuit breaker capable of improving the effect of cooling a gas that has reached a high temperature as a result of being blown toward an arc. A gas circuit breaker according to the present disclosure comprises: a sealed container (1) enclosing therein an insulating gas; a fixed arc contact (11) and a movable arc contact (6) which are provided in the sealed container (1) and are arranged so as to be coaxially opposite to each other and to be able to contact with/separate from each other; a gas blowing mechanism (5) for blowing the insulating gas to an arc generated when the movable arc contact (6) and the fixed arc contact (11) are separated from each other; an insulating nozzle (9) disposed so as to surround an arc region (13) in which the arc is generated; a cooling cylinder (10) that is disposed downstream of the insulating nozzle (9) in a flowing direction (2) of the insulating gas and that cools the insulating gas blown to the arc; and a stirring part (12) that includes a stirring member for separating the flow of the insulating gas and that is attached to a leading end part (92) which is an end of the insulating nozzle (9) extending toward the cooling cylinder (10) side.
More Like This:
| JPS60150520 | GROUND TANK TYPE GAS BREAKER |
| JPS6261222 | NOZZLE FOR GAS BREAKER ARC EXTINGUISHING CHAMBER |
Inventors:
KISE KOJI (JP)
NAKAMURA YASUNORI (JP)
TAKEISHI KEISUKE (JP)
NAKAMURA YASUNORI (JP)
TAKEISHI KEISUKE (JP)
Application Number:
PCT/JP2022/005947
Publication Date:
August 24, 2023
Filing Date:
February 15, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H01H33/70; H01H33/91
Domestic Patent References:
| WO2017187654A1 | 2017-11-02 | |||
| WO2015008515A1 | 2015-01-22 |
Foreign References:
| JPS62241223A | 1987-10-21 | |||
| JP2005019273A | 2005-01-20 | |||
| JP2010061858A | 2010-03-18 | |||
| JP2010244742A | 2010-10-28 | |||
| JP2017050095A | 2017-03-09 | |||
| US20150294818A1 | 2015-10-15 |
Attorney, Agent or Firm:
MURAKAMI, Kanako et al. (JP)
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