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Patent Searching and Data


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)
Application Number:
PCT/JP2019/049036
Publication Date:
October 08, 2020
Filing Date:
December 13, 2019
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H01H83/02; G01R31/50
Foreign References:
JP2018006201A2018-01-11
JP2007142065A2007-06-07
JPH1022149A1998-01-23
JP2015194508A2015-11-05
JPH0721900A1995-01-24
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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