H - Electricity – 02 – H
Patent
H - Electricity
02
H
H02H 3/33 (2006.01)
Patent
CA 2553666
The invention refers to a method and an apparatus (1) for protecting people against leakage currents while using appliances such as home appliances or the like. The apparatus (1) is provided with a differential switch (20) normally open and a differential current transformer (39) which generates a signal proportional to the leakage current, an elaboration unit (50) interfaced with the latter acquires said signal and keeps the switch (20) closed until a dangerous condition is met, corresponding to an acquired signal having a magnitude greater than a limit value.
L'invention concerne un procédé et un dispositif (1) destinés à protéger les personnes contre les fuites de courant pendant l'utilisation d'appareils tels que des appareils domestiques. Le dispositif (1) est muni d'un interrupteur différentiel (20) normalement ouvert et d'un transformateur de courant différentiel (30) générant un signal proportionnel au courant de fuite. Une unité d'élaboration (50) en interface avec ledit transformateur acquiert le signal et maintient l'interrupteur (20) en position fermée jusqu'à ce qu'une situation dangereuse survienne, matérialisée par un signal reçu supérieur à une valeur limite.
Marks & Clerk
Trinity S.a.
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