Vacuum circuit breaker for aviation variable frequency power system : theory and application of arc in electrical apparatus This book introduces the concepts of more electric aircraft and aviation electrical appliances as well as the aviation experimental platform of vacuum switches the interruption characteristics frequency characteristics and post arc breakdown characteristics of intermediate frequency vacuum switches etc. It is the first monograph on protection electrical appliances vacuum interrupter in aviation variable frequency power system. This book includes a lot of experimental process and chart analysis for readers to understand and provides references for practical engineering problems. This book could be used as references for engineers and technicians working on electric power systems in aircrafts. . Introduction Experiment and Simulation Platform of Variable Frequency Power System Contacts Characteristics of Variable Frequency Vacuum Arc Frequency Characteristics of Variable Frequency Vacuum Arc Post arc Breakdown in Variable Frequency Vacuum Arc.