Numerical multiphysics modeling of temperature rises in gas insulated busbars

Accurate temperature rises prediction in gas insulated switchgears (GIS) is necessary to reduce the number of unsuccessful qualification tests for IEC standard 62271 validation. Numerical simulation is recently the most adapted tool used to achieve this goal. Due to the complexity of GIS geometries and to the physical phenomena interaction, the simulation involves several fields of engineering. This article proposes a multiphysics numerical model for temperature rise prediction on GIS busbars. It also highlights the benefit of temperature rises prediction with numerical simulations for cooling solutions design and validation.