The computer as a host computer
Zhang Qiang, who developed the relay electrical parameters of the test device to enhance the 89C51 microcontroller as the core, configure the AC and DC voltage source and contact detection circuit can be a variety of models AC and DC voltage relay action time
The experimental scheme is simple and feasible, and it can realize the analysis of the contact voltage and current waveform during the dynamic contact and breaking of the AC contactor.
operating voltage, contact resistance Electrical parameters for testing. In the test of the action time, the relay will be tested normally closed contact high, normally open contact ground
in the detection of the coil rated voltage at the same time start the timer to start timing, build contact level detection circuit real-time monitoring Change of contact level
