Chinese low-voltage circuit breaker manufacturers currently mainly in Beijing, Tianjin, Liaoning, Shanghai, Jiangsu, Zhejiang, Guangdong and other places, in the promotion of economic development, while Jinan vacuum circuit breakers, also exposed many problems. Mainly in the following two points: 1. small-scale enterprises, and the excessive number. 2. Regional structural convergence, redundant construction serious. Chinese low-voltage electrical industry due to the blind on the project, setting up shops, regional industry convergence serious, low-level redundant construction, resulting in the production of excess energy, low utilization of raw materials, low cost and regional protection, vicious competition and other consequences. Common are low-voltage circuit breakers and vacuum off: low-voltage circuit breakers for AC voltage 1200V Weihai vacuum circuit breakers, circuit DC voltage 1500V play-off, control or protection such as the role of electrical appliances. Low-voltage circuit breaker is an important part of the electrical industry, in the machinery industry is the basis for matching pieces, in the distribution system voltage switchgear Liaocheng mainly composed of vacuum circuit breakers, function and performance of low-voltage circuit breaker components from a variety of low-voltage circuit breakers for low voltage switchgear plays a vital role. Power generation equipment issued more than 80% of electrical energy through the use of low-voltage circuit breakers distribution. Each additional 10,000 kW of power generation equipment, various types of low voltage circuit breakers about 20,000 or so a complete set. In industrial automation systems, but also requires a variety of control panels, consoles, controllers and other products formed by the low voltage circuit breakers. Chinese low-voltage circuit breaker industry since 1949 in the afternoon, on the basis of some repairs, simple electrical assembly plant on gradually developed into independent design and production industry vacuum circuit breakers, to 1979 a total of more than 600 manufacturing enterprises, through 1985 to 1986, From 1990 to 1991 two Development Summit, 1995 Circuit Breakers industry has about 1500 producers. Qingdao vacuum circuit breakers, vacuum circuit breakers, power is supplied by the Xi'an Huayi Huayi power plant. Xian Huayi power plant (www.xahy.com) strong, credible, in Xi'an high-voltage circuit breakers and other industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Huayi power and you hand into the brilliant, for a better future!