Title:
SWITCH GEAR
Document Type and Number:
WIPO Patent Application WO/2018/138805
Kind Code:
A1
Abstract:
A switch gear 100 is characterized by being provided with: a casing 1 that partitions and houses a breaker chamber 2, a cable chamber 3, and a main bus chamber 4; a ventilation duct 5 that communicates between the interior and exterior of the casing 1; a perforated frame 9 which is disposed in the interior of the ventilation duct 5 and in which ventilation holes 11 that are passages for air are formed; and an arc prevention frame 7 formed by folding a plate into a V shape and including a flapper 7 which is one flat section connected to the folded portion, and a fixed section which is another flat section and which is fixed to the ventilation duct 5, the arc prevention frame being disposed so that the folded portion abuts the inner side of the perforated frame 9 in the interior of the ventilation duct 5.
Inventors:
KUROKAWA YOSHIO (JP)
KIMURA TOHRU (JP)
HAMADA TATSUYA (JP)
YAMAJI TORU (JP)
KIMURA TOHRU (JP)
HAMADA TATSUYA (JP)
YAMAJI TORU (JP)
Application Number:
PCT/JP2017/002552
Publication Date:
August 02, 2018
Filing Date:
January 25, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02B1/56
Domestic Patent References:
| WO2009001425A1 | 2008-12-31 |
Foreign References:
| JPS4879226U | 1973-09-28 | |||
| JP2000228803A | 2000-08-15 | |||
| US20120028559A1 | 2012-02-02 |
Attorney, Agent or Firm:
MURAKAMI, Kanako et al. (JP)
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