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.

China's reform and opening-up have contributed to its long-term and rapid economic development, resulting in a much stronger economic strength and much better life for its people. Meanwhile, the deepening economic integration between China and the world has resulted in an increasingly complex environment, growing influencing factors and severe challenges to China's economic development. Under the "new normal" of the Chinese economy, accurate analysis of the economic situation is essential to scientific decision-making, sustainable and healthy economic development and to build a moderately prosperous society in all respects. By applying statistical and national economic accounting methods, and based on detailed statistics and national economic accounting data, this book presents an in-depth analysis of the key economic fields, such as real estate economy, automotive industry, high-tech industry, investment, opening-up, income distribution of residents, economic structure, balance of payments structure and financial operation, since the reform and opening-up, especially in recent years. It aims to depict the performance and characteristics of these key economic fields and their roles in the development of national economy, thus providing useful suggestions for economic decision-making, and facilitating the sustainable and healthy development of the economy and the realization of the goal of building a moderately prosperous society in all respects.

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.