sf6 circuit breaker model in pscad emtdc as Pressure | SF6 gas pressure during operation | 0.2 – 0.5 MPa | | Contact Gap | Distance between contacts during operation | 10 – 30 mm | | Reignition Voltage | Voltage at which arc reignites (if any) | Depends on system conditions | Proper selection ensures that the simulation accu H Hugh Treutel-Baumbach May 5, 2026