3D full-Maxwell simulations of very fast transients in GIS

This study presents a detailed analysis of very fast electromagnetic transients (VFT) initiated by disconnector switching operations in gas insulated switchgears (GIS). The results of the full-Maxwell electromagnetic simulations performed on real-life GIS geometries along with the modeling details are presented. The verification of the simulation results was performed by comparison against both measurements and circuit equations based transient simulations with the aim to quantify the achieved simulations accuracy. The obtained results show an excellent qualitative and acceptable quantitative accuracy level of our simulations, allowing for better understanding of the VFT phenomenon and a significant reduction of the product development time and prototyping costs.