Abstract
Repetitive ignitions of electric arc during switching operation may result in generating Fast and Very Fast Transients (FT and VFT) and thus require analyses to ensure reliable system operation. The paper presents a common approach for modeling and simulation of such phenomenon for two types of switching devices: Vacuum Circuit Breakers (VCB) and GIS disconnectors. In each case, the associated (VFT) are modeled with the use of a case-specific Breakdown Voltage Characteristic (BDV), characterizing the switching process, and with the use of case-specific power system conditions. Two case studies are presented. For Vacuum Circuit Breaker, a switching operation of un-loaded transformer is presented. For GIS disconnector, switching of short bus-bar during the disconnector type testing is presented.
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© 2015 Springer International Publishing Switzerland
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Szewczyk, M., Kuczek, T., Oramus, P., Piasecki, W. (2015). Modeling of Repetitive Ignitions in Switching Devices: Case Studies on Vacuum Circuit Breaker and GIS Disconnector. In: Gołębiowski, L., Mazur, D. (eds) Analysis and Simulation of Electrical and Computer Systems. Lecture Notes in Electrical Engineering, vol 324. Springer, Cham. https://doi.org/10.1007/978-3-319-11248-0_18
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DOI: https://doi.org/10.1007/978-3-319-11248-0_18
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