Title:
CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2020/240632
Kind Code:
A1
Abstract:
The circuit breaker (1) is provided with a mechanism unit (6) for opening/closing an electrical circuit, a command output unit (40) for outputting an operation command to operate the mechanism unit (6), a switch unit (15) operating upon completion of the operation of the mechanism unit based on the operation command, and an abnormality detection unit (16). The abnormality detection unit (16) detects an abnormality of the mechanism unit (6) on the basis of the difference between timing at which the operation command is output from the command output unit (40) and timing at which the switch unit (15) operates.
Inventors:
TAKAHASHI KAZUKI (JP)
FUJIWARA TAKUMI (JP)
KASHIWAMOTO KOTA (JP)
UCHINO SOSUKE (JP)
KUNI TAKUYA (JP)
FUJIWARA TAKUMI (JP)
KASHIWAMOTO KOTA (JP)
UCHINO SOSUKE (JP)
KUNI TAKUYA (JP)
Application Number:
PCT/JP2019/020754
Publication Date:
December 03, 2020
Filing Date:
May 24, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H01H33/00
Foreign References:
| JP2018032566A | 2018-03-01 | |||
| JPS63318033A | 1988-12-26 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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