Title:
INTERLOCK APPARATUS OF RING MAIN UNIT
Document Type and Number:
Japanese Patent JP2017130434
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an interlock apparatus of a ring main unit, which is provided between a plurality of circuit breaker switches, and in which, when one circuit breaker switch is controlled to a closed state, the other circuit breaker switch adjacent to the one circuit breaker switch is prevented from being controlled to a closed state, thereby preventing the plurality of circuit breaker switches from being simultaneously connected to a power supply source.SOLUTION: An interlock apparatus 100 of a ring main unit includes at least two circuit breaker switches 300, 400 where insertion holes 310, 410 into which a handle is inserted are respectively formed for controlling a closed or cutoff state. The interlock apparatus includes: a plate 110 which moves so that the insertion hole 310 is opened and the insertion hole 410 is closed; indicators 120, 130 which rotate by interlocking with the circuit breaker switches 300, 400, respectively; and movement prevention members 140, 150 which prevent a movement of the plate 110 according to a rotation of respective indicators 120, 130, thereby maintaining an open state of the insertion hole 310 and a closed state of the insertion hole 410.SELECTED DRAWING: Figure 1
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Inventors:
LEE DONG SIK
Application Number:
JP2016219022A
Publication Date:
July 27, 2017
Filing Date:
November 09, 2016
Export Citation:
Assignee:
LSIS CO LTD
International Classes:
H01H33/52; H01H31/10
Domestic Patent References:
| JPS62175635U | 1987-11-07 | |||
| JPS62175635U | 1987-11-07 | |||
| JPH0230019A | 1990-01-31 | |||
| JPH1055728A | 1998-02-24 | |||
| JPH0230019A | 1990-01-31 |
Foreign References:
| WO2011020506A1 | 2011-02-24 |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tomohiro Minamiyama
Akira Kawai
Kenichi Nakamura
Minoru Takemoto
Jun Tsuruta
Tomohiro Minamiyama
Akira Kawai
Kenichi Nakamura
Minoru Takemoto