CIRCUIT BREAKER WITH LIVE-STATE INFORMATION MEASURING INSTRUMENT

WIPO Patent Application WO/2000/079554

A1

A conductor (34) is fastened to a terminal part (33) of the body (1) of a circuit breaker by means of a fastening member (35). A live-state information measuring instrument (30) includes a Hall device (38) for sensing the magnetic flux generated by the current flowing through the conductor (34) and converting it to an electric signal, a contact piece (41) provided in contact with the conductor (34) and adapted to measure the phase voltage, an electronic circuit unit (43) for arithmetically operating the phase voltage signal and the electric signal outputted from the Hall device (38), and output means (40) for outputting the results of the arithmetic operation. The live-state information measuring instrument (30) is detachably provided to the terminal part (33). Even a circuit breaker not incorporating any current transformer (18) can allow live-state information fed to a load protected by the body (1) of the circuit breaker to be indicated.

WO/1986/001935	CIRCUIT BREAKER
JP2570384	[Name of invention] Terminal block cover structure of circuit breaker
WO/2022/035009	CIRCUIT BREAKER HAVING MAIN CIRCUIT UNIT COVER

KANAO SHIGERU
HATAKEYAMA YOSHIKIRO
KUITANI TAKASHI

PCT/JP1999/003322

December 28, 2000

June 22, 1999

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MITSUBISHI ELECTRIC CORP (JP)

H01H71/02; H01H71/12; H01H33/02; H01H71/08; (IPC1-7): H01H73/00; H01H73/12; H01H83/02

JPH0547869U	1993-06-25
JPS53121146A	1978-10-23
JPS63137435U	1988-09-09
JPH0682572U	1994-11-25
JPH05258788A	1993-10-08
JPH0216460A	1990-01-19
JPS5438573A	1979-03-23
JPH02121224A	1990-05-09
JPH09198989A	1997-07-31
JPH08194016A	1996-07-30

See also references of EP 1107274A4

Miyata, Kaneo (Marunouchi 2-chome Chiyoda-ku Tokyo, JP)

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