Evaluation of interruption performance index of high voltage circuit breakers using numerical simulation and data analysis technique

In this paper, interruption performance of high voltage circuit breaker has been evaluated. Numerical results with computational fluid dynamics (CFD) and electric field analysis such as gas pressure, density, and temperature are used to evaluate the interruption performance index. To evaluate the interruption performance index, data analysis techniques such as support vector machine (SVM) and random forest (RF) are adopted. For interruption performance index, high power laboratory (HPL) test results of test duties such as SLF90, and T30 are investigated. With data analysis technique, factors affecting interruption performance of each test duties are determined. For each test duties, different factors and interruption performance index are evaluated, which is because of different test conditions – injecting current and transient recovery voltage (TRV).