Simulated load and computer control hardware design of three parts

Describes the electrical life test device power, analog load and the computer control hardware design of three parts. Detailed analysis of the AC contactor is closed under different conditions and breaking contact when the voltage across the loop current si circuit breakers  and study the AC1 ~ AC4 work system under the control of timing. Applications Advantech data  mcb circuit breaker  card for the main circuit voltage, current situation in real time. In the control software, respectively, to complete DOS and Windows platforms control software design, implementation, AC contactor is closed and disconnected moments voltage and current waveforms dynamic display.