Title:
診断装置、回路遮断器及び診断方法
Document Type and Number:
Japanese Patent JP7487847
Kind Code:
B2
Abstract:
A diagnostic device (10) according to the present invention comprises: current detection units (14r, 14s, 14t) that measure current values of currents flowing in a circuit breaker; and a diagnostic unit (11) that diagnoses the cause of a break when the circuit breaker shuts off from the current values measured by the current detection units (14r, 14s, 14t), the diagnostic unit (11) diagnosing the cause of the break on the basis of the current values immediately before the circuit breaker shut off.
Inventors:
Noriko Ito
Machida Satoshi
Machida Satoshi
Application Number:
JP2023539704A
Publication Date:
May 21, 2024
Filing Date:
June 28, 2022
Export Citation:
Assignee:
Fuji Electric Equipment Control Co., Ltd.
International Classes:
H01H83/02
Domestic Patent References:
| JP2006156071A | ||||
| JP201885908A | ||||
| JP2016195096A | ||||
| JP2015198477A | ||||
| JP2016220453A |
Foreign References:
| KR20030090480A | ||||
| US20180316178 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito