Design Breaking Performance Analysis - Low current breaking performance : analyze changes in SF6 gas density cause by arc heat generated between the poles of the circuit breaker by the charge current of transmission line. - High current breaking performance : analyze changes in SF6 gas density by the high arc heat which is generated when the circuit breaker blocks the abnormal current. For maximizing the breaking performance, phoenics and fluent, the arc analysis tools, are used for analyzing the SF6 gas density and flow Cold Gas Analysis Hot Gas Analysis Three-Dimensional Electric Field Analysis Because high voltage is applied in the SF6 GIS, a very precise electric field analysis is needed. Therefore, Hyosung uses a three-diemensional analysis program to design a product that analyzes the electric field distribution of all parts of the GIS including the busbar and insulating materials
I 06 07 Gas Insulated Switchgear Mechanical Performance Analysis To maximize the optimum mechanical performance of the conductor, enclosure, and controller of the GIS, values (mass, shape, stress, transformation, etc) of all parts of the GIS are precisely analyzed using the structure analysis programs and three-dimensional design. Analysis with NASTRAN/PATRAN Hydraulic main valve block Busduct support Three-Dimensional Design & Assembly Solid Edge, the latest three-dimensional design tool, is used for basic GIS design to assembling parts in order to minimize any possible design errors. It is also used to model the final installation so that the installation site is optimized by the assembled parts. Seismic & Vibration To verify the seismic and vibration at the design stage, the latest seismic and vibration analysis tools, which consider all loads resulting from gravity (both the vertical load and the wind load), have been used for ensuring overall structural safety.