Title:
CURRENT LIMITING DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/103406
Kind Code:
A1
Abstract:
An electrical circuit forming unit is constituted by forming a steady-state electrical circuit by arranging a plurality of mutually adjoining contact members (11) capable of contacting with and separating from each other between a first fixed electrode (4) and a movable electrode (10), and between a second fixed electrode (5) and the movable electrode (10), and by forming a current limiting electrical circuit by connecting a current limiting resistor (15) in parallel with the steady-state electrical circuit. Contact separation members (12) are arranged at both sides of the contact members (11), said contact separation members having engagement projections (12a) that can be fitted into recessed engagement portions (11a) provided on lateral sides of each contact member (11). The contact separation members (12) are driven by a contact-driving unit to move between an insertion position where the mutually adjoining contact members (11) are separated from each other, and a pull-out position which is the reverse of the insertion position. A current limiting device is constituted so that the engagement projections (12a) come in contact with all the recessed engagement portions (11a) of the contact members (11) which are separated when the contact separation members (12) move to the insertion position, even when the contact separation members (12) are in the pull-out position.
Inventors:
HAYASHI KAZUFUMI (JP)
Application Number:
PCT/JP2013/066583
Publication Date:
July 03, 2014
Filing Date:
June 17, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02H9/02; H01F29/04
Foreign References:
| JP2010252620A | 2010-11-04 | |||
| JP2008186823A | 2008-08-14 | |||
| JP2010025262A | 2010-02-04 |
Other References:
See also references of EP 2940822A4
Attorney, Agent or Firm:
OIWA Masuo et al. (JP)
Masuo Oiwa (JP)
Masuo Oiwa (JP)
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