The controller of the synchronous circuit breaker is developed by using strong peripheral function.Based on the single chip microprocessor MC68332

in which the algorithm of average series for zero-crossover phase difference is adopted

so the phase information of power grid can be extracted rapidly and accurately

and synchronous tracking pulses can be produced.When remote control instructions are received

according to the phase information of power grid the VCB acts synchronously to ensure that the contactors of VCB can be opened or closed in right position.The equipment is measured in the test and the test result shows that this equipment is stable and real-time

which can monitor and manage the synchronous circuit breaker.