Research on Improving the Success Rate of Synthesis Experiment Using Laser Triggered Vacuum Switch

Vacuum circuit breaker plays an important role in the stable operation of power system. In order to test its breaking capacity, the synthetic circuit is generally selected for the synthetic experiment. Synthesis experiment requires high precision of sequential coordination. Mechanical actuators are generally adopted in the existing experimental circuit to control the input of large current generated by the current source. However, due to the accuracy of the mechanism itself, the probability of successful synthesis to meet the requirements of the IEC standard is not high, useless data are obtained, and the service life of the experimental device is wasted. To solve above problems, this paper proposes a method of using laser triggered vacuum switch instead of mechanical actuators as making switch. A large number of statistical studies were made on the conduction characteristics of laser triggered vacuum switches. And the comparison between the two methods was made in the experimental circuit. The results show that the experimental group using laser triggered vacuum switch can greatly improve the success rate of the synthesis experiment. The research results provide guidance for the improvement of the synthetic circuit and improve the success rate of synthetic experiment.