Fluarc SF6 MV Circuit-Breakers: Switching Motor Starting Currents Technical Analysis

This technical document analyzes the performance of SF6 medium-voltage (MV) Fluarc circuit-breakers when switching motor starting currents, covering historical context, auto-compression and rotating arc techniques, and the resulting overvoltages. It details motor insulation standards, steep fronted wave propagation, and presents test results and practical conclusions for safe operation.