Application of an Improved Mayr-Type Arc Model in Pyro-Breakers Utilized in Superconducting Fusion Facilities

Pyro-breaker, a fast-responding, highly reliable and explosive-driven circuit breaker, is utilized in several Quench Protection Systems (QPS). The commutation process its parameters are the main technical considerations of designing new pyro-breaker. parameters, such as time current change rate, not only determined by electrical but also arc behavior during operation. greatly affected structure driving mechanism Commutation Section (CS) model was developed decades ago black-box considered valid method to study behavior. In this paper, Schavemaker model, an improved Mayr-type applied newly designed Unlike normal breakers, discussed paper discharged deionized water. A parameter selection proposed. practicability verified numerical calculation Power Computer Aided Design (PSCAD) experimentally.