Investigation into transient SFO, FFO, VFTO overvoltage characteristics for typical gas insulated substations

Nouri, Hassan; Kim, J; Czumbil, L

Abstract

Overvoltage characteristics of typical single bus, double bus and one and a half bus GIS configurations under transient SFO, FFO and VFTO conditions are studied. The transient conditions are simulated through load rejections, lightning and the opening and closing of circuit breakers or disconnectors. Surge impedance and travel time are used for defining the distributed parameter models of the GIS. The results suggest that for VFTOs the magnitude of the generated overvoltage solely depends on the switching sequences while for SFOs and FFOs the overvoltage depends on the degree of the inductive load and the type and length of transmission lines.

Citation

Nouri, H., Kim, J., & Czumbil, L. (2015, June). Investigation into transient SFO, FFO, VFTO overvoltage characteristics for typical gas insulated substations. Paper presented at International Conference on Power Systems Transient (IPST)

• Presentation Conference Type: Conference Paper (unpublished)
• Conference Name: International Conference on Power Systems Transient (IPST)
• Start Date: Jun 15, 2015
• End Date: Jun 18, 2015
• Publication Date: Jun 1, 2015
• Peer Reviewed: Peer Reviewed
• Publisher URL: http://www.ipstconf.org/papers/Proc_IPST2015/15IPST207.pdf
• Additional Information: Title of Conference or Conference Proceedings : International Conference on Power Systems Transient (IPST); Corporate Creators : Power Systems, Electronic and Control Research Lab