Sensitivity of Synthetic Test Circuit parameters on thermal interruption tests in CO2 gas mixtures
DOI:
https://doi.org/10.14311/ppt.2025.3.202Keywords:
blown arc, synthetic testing, SF6-alternatives, gas circuit breakerAbstract
Synthetic testing has been extensively utilized to study the thermal interruption performance of CO2-based gas mixtures under the influence of varying physical factors in an experimental HV circuit breaker. To limit contact and nozzle ablation for collecting a statistically meaningful dataset, the lowest possible peak current amplitudes were chosen for the high-current and the injection current phases. The present work focuses on evaluating the sensitivity of the test-circuit parameters on the interruption performance in CO2/O2 (90% /10%) gas mixture.
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