Application of PMVE Mixture in 145kV Gas Circuit Breaker
Perfluoromethyl vinyl ether (PMVE) mixed with CO₂ is a promising insulating gas for highvoltage gas circuit breakers (GCBs) due to its low Global Warming Potential and favorable dielectric properties. This paper presents a calculation-based method to evaluate and improve the short-line fault (SLF) interruption performance of a 145kV GCB using a PMVE/CO2 mixture.