Estimation of Burn-Through Probability in SF6 Insulated Substations
- 1 June 1982
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. PAS-101 (6) , 1391-1399
- https://doi.org/10.1109/tpas.1982.317186
Abstract
Enclosure burn-through in SF6 insulated substations is a rarely occurring event; however, in view of the possibly damaging effects to equipment and personnel, its probability of occurrence warrants a closer examination. This paper presents a model for estimating the likelihood of enclosure burn-through or pressure relief disc bursting during an in-service fault in SF6 substations. Results of a simulation show a 25% burn-through probability per fault in substations with the most probable fault currents in the 50 kA range. The probability of personnel being exposed to the hazardous arcing by-products is discussed.Keywords
This publication has 3 references indexed in Scilit:
- Gas-Insulated Substations Fault SurveyIEEE Transactions on Power Apparatus and Systems, 1980
- DYNAMICS OF POWER ARCS IN CO-AXIAL ELECTRODE GEOMETRYPublished by Elsevier ,1980
- Effects of arcs in enclosures filled with SF6 and steps taken to restrict them in SF6 switchgearIEEE Transactions on Power Apparatus and Systems, 1975