Abstract:

        This paper presents the software and hardware design for a leakage circuit breaker test system. This system employs a resistor and an inductor as a load simulator, a PIC singlechip computer to control the connection and disconnection of a leakage circuit breaker. This system can also automatically terminate an experiment. Repetitive mechanical fatigue test shows that a circuit breaker can not be damaged and can work normally.

Key words: PIC singlechip computer, load simulator, leakage circuit, power factor