Dispositif de mesure d'un courant électrique, capteur de courant, déclencheur électrique et dispositif de coupure comportant un tel dispositif de mesure

The device has three coils (2) connected in series and forming a closed polygonal outline designed to surround a conductor (7) to perform current measurement. The local inductance of one of ends of the coils is greater than the local inductance towards a central part of the coils. The coils` ends co...

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Bibliographic Details
Main Authors FREDERIC TOTI-BUTTIN, GILLES BUDILLON, PASCAL HOUBRE, SEBASTIEN BUFFAT
Format Patent
LanguageFrench
Published 13.12.2006
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:The device has three coils (2) connected in series and forming a closed polygonal outline designed to surround a conductor (7) to perform current measurement. The local inductance of one of ends of the coils is greater than the local inductance towards a central part of the coils. The coils` ends comprise of larger number of turns of wire per unit length than the number of turns of wire per unit length towards central part of the coils. An independent claim is also included for an electric trip unit comprising a processing unit connected to a current measuring device.
Bibliography:Application Number: OA20051000146