Title:
GAS-INSULATION SWITCH DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/109931
Kind Code:
A1
Abstract:
Provided is a gas-insulation switch device wherein insulation performance is improved by efficiently eliminating residual hot gas, and capable of readily achieving the shut-off requirements demanded of a high-voltage switch. In this invention, formed inside a mobile shield 23 are a compression chamber 30 on a mobile contactor base 22 side and an aspiration chamber 31 on a mobile contactor 21 side with a piston 25a of an operating rod 25 serving as a partitioning wall. The compression chamber 30 blows dielectric gas through a communicating hole 25c, a hollow section 25b, and an aeration hole 21a, toward an arc 40 generated between a fixed arc contactor 11 and a mobile contactor 21 by the compression of the dielectric gas within the compression chamber due to the movement of the piston 25a when opening the poles. The aspiration chamber 31 draws in a high-temperature gas caused by the arc 40 from a gap 31a between the mobile contactor 21 and a mobile shield 23 by a reduction in pressure within the chamber due to the expansion of the space therein due to movement of the piston 25a.
Inventors:
KANAYA KAZUHISA (JP)
OHDA YOSHIAKI (JP)
NAGATA TOSHIKAZU (JP)
SHIKIMI KOUSUKE (JP)
IIO NAOTAKA (JP)
ANDO MASAYUKI (JP)
OHDA YOSHIAKI (JP)
NAGATA TOSHIKAZU (JP)
SHIKIMI KOUSUKE (JP)
IIO NAOTAKA (JP)
ANDO MASAYUKI (JP)
Application Number:
PCT/JP2016/087587
Publication Date:
June 21, 2018
Filing Date:
December 16, 2016
Export Citation:
Assignee:
TOSHIBA KK (JP)
International Classes:
H01H33/04
Domestic Patent References:
| WO2012093507A1 | 2012-07-12 | |||
| WO2015185095A1 | 2015-12-10 |
Foreign References:
| JPS58100326A | 1983-06-15 | |||
| JPH0214741U | 1990-01-30 | |||
| JPH0553094U | 1993-07-13 | |||
| JPH0277830U | 1990-06-14 | |||
| JPH03116638U | 1991-12-03 | |||
| JP2015043656A | 2015-03-05 | |||
| JPS5553824A | 1980-04-19 | |||
| JPH08321233A | 1996-12-03 | |||
| JP2002075148A | 2002-03-15 | |||
| JP2008112633A | 2008-05-15 | |||
| JPS6114444A | 1986-01-22 | |||
| JP2014072032A | 2014-04-21 | |||
| JP2015079635A | 2015-04-23 | |||
| JP2015185381A | 2015-10-22 | |||
| JP2015185467A | 2015-10-22 | |||
| US5258590A | 1993-11-02 |
Other References:
See also references of EP 3561840A4
Attorney, Agent or Firm:
KIUCHI, Mitsuharu (JP)
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