INTELLIGENT EARTH LEAKAGE BREAKER APPARATUS

摘要

PURPOSE: An intelligent earth leakage breaker apparatus is provided to achieve in-advance prevention against accident caused due to electric leakage, by compulsorily cutting off the power being supplied to the load upon detection of electric leakage. CONSTITUTION: An intelligent earth leakage breaker apparatus comprises a zero-current transition mounted on a power line connected to a load so as to detect the grounding current flowing along the power line; a controller IC for amplifying the grounding current detected by the zero-current transition, judging the electric leakage of the load by comparing the amplified grounding current with a preset reference level, and controlling SCR, LED and voice generating IC if it is judged as an electric leakage; a trip coil which is excited being interlocked with the SCR and compulsorily cutting off the power being supplied to the load upon occurrence of electric leakage; an LED which turns on by the control of the controller IC upon occurrence of electric leakage and displaying electric leakage state; and a voice generator IC which operates by the control of the controller IC upon occurrence of electric leakage and outputting voices for informing electric leakage state through a speaker.