Title:
SWITCHGEAR
Document Type and Number:
WIPO Patent Application WO/2014/155874
Kind Code:
A1
Abstract:
Switchgear (100) provided with the following: a switch mechanism (103) that can connect or disconnect a movable contact (2a) to/from a fixed contact (1a); a magnet (4) that generates a magnetic field for lengthening an arc generated when the contacts (1a and 2a) separate; and an elongated magnetic body (3), one end of which is in contact with a magnetic-pole surface of the magnet. The other end of said magnetic body (3) is positioned near an arc-generation region between a fixed contactor (1) and a movable contactor (2). The magnetic field generated by the magnet (4) lengthens the arc along a lengthwise side surface of the magnetic body (3).
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Inventors:
WATANABE SHINYA (JP)
YAMANE SHOTA (JP)
KOKURA KENTARO (JP)
SAGARA YUTA (JP)
YAMANE SHOTA (JP)
KOKURA KENTARO (JP)
SAGARA YUTA (JP)
Application Number:
PCT/JP2013/084204
Publication Date:
October 02, 2014
Filing Date:
December 20, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H01H9/44; H01H50/00; H01H73/18
Foreign References:
| JPS3928834B1 | ||||
| JPS5389980A | 1978-08-08 | |||
| JPH1140029A | 1999-02-12 | |||
| JPS61202841U | 1986-12-19 | |||
| JPH0382542U | 1991-08-22 | |||
| JP2012199137A | 2012-10-18 | |||
| JP2009087918A | 2009-04-23 |
Other References:
See also references of EP 2980821A4
Attorney, Agent or Firm:
OIWA Masuo et al. (JP)
Masuo Oiwa (JP)
Masuo Oiwa (JP)
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