Switch is a kind of electronic component, such as the role of control selection and connection in the circuit, a wide range of its applications.

In recent years, the country vigorously promote the localization of major equipment manufacturing, as an important control and protection equipment plays a role in the operation of power system, the high voltage switch industry has formed a vacuum switch for medium voltage products system led to six and sulfur hexafluoride circuit breaker (GIS) equipment for leading HV, EHV and UHV product system, continuously improve the level of product design and manufacturing capability, and. 2007-2012, high voltage switchgear manufacturing industry total industrial output value increased year by year, the annual growth rate in more than 10%, the industry maintained rapid growth rate.

"2014-2018 annual report" research and analysis Chinese switch industry market and the investment value of the display, the development of the electric power market represents the demand trend in today's high voltage switch market to a certain extent. In recent years, the global transportation market demand overall upward trend in distribution equipment. China is one of the fastest growing market, has become the international market second. Especially in recent years, accelerating the power transmission from west to East, North South mutual supply, construction of cross regional networking project, promote the rapid development of China's power transmission and distribution equipment industry. "Twelfth Five Year Plan" period, accelerating UHV, smart grid construction, will give the high-voltage switch industry opened up a broad market, construction and EHV DC transmission projects, will drive and promote the research of UHV DC transmission technology, open up new areas of technology and new market, high voltage switch industry will usher in a sustained, stable development period.