Title:
EARTH LEAKAGE CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2020/202653
Kind Code:
A1
Abstract:
In this invention, a fluxgate magnetic sensor is disposed so as to surround conductors (505a, 505b) and measures the size of a magnetic field produced by current flowing through the conductors (505a, 505b). A position determination mechanism (508) determines the positions of the conductors (505a, 505b) in relation to the fluxgate magnetic sensor. If a measurement value from the fluxgate magnetic sensor exceeds a threshold, a driving mechanism drives an opening and closing mechanism so as to open a pair of contacts.
Inventors:
INAGUCHI TAKASHI (JP)
OKADA YASUYUKI (JP)
TAKAHASHI KAZUKI (JP)
HOTTA KATSUKI (JP)
OKADA YASUYUKI (JP)
TAKAHASHI KAZUKI (JP)
HOTTA KATSUKI (JP)
Application Number:
PCT/JP2019/049036
Publication Date:
October 08, 2020
Filing Date:
December 13, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H01H83/02; G01R31/50
Foreign References:
JP2018006201A | 2018-01-11 | |||
JP2007142065A | 2007-06-07 | |||
JPH1022149A | 1998-01-23 | |||
JP2015194508A | 2015-11-05 | |||
JPH0721900A | 1995-01-24 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
Download PDF:
Previous Patent: WHEELED WORK VEHICLE
Next Patent: MONITORING SYSTEM, MONITORING DEVICE, MONITORING METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM
Next Patent: MONITORING SYSTEM, MONITORING DEVICE, MONITORING METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM