CIRCUIT BREAKER USED SEPARATED POWER BETWEEN DETECTION OF THE ELECTRONIC LEAKAGE AND DRIVING A TRIP COIL, CAPABLE OF PREVENTING BURNING OF THE TRIP COIL

摘要

PURPOSE: A circuit breaker used separated power between detection of the electronic leakage and driving a trip coil are provided to prevent burning of a trip coil due to continue supplied voltage by controlling a duration of gate signal applied to a thyristor from a leakage detection control unit.;CONSTITUTION: A circuit breaker used separated power between detection of the electronic leakage and driving a trip coil is composed of a first rectifier(a), a second rectifier(b), a leakage detection-control unit(100), a condenser(320), a resistor(340), a thyristors(SCR1,220), a trip coil(240), and a reset. The first rectifier rectifies power applied to a phase line, and the second rectifier half-wave-rectifies power applied to the phase line and power 180 degrees difference from the power applied to the neutral line(N).;COPYRIGHT KIPO 2010