Xi'an Expeditionary Technology Co., Ltd., which was established in 1992, is a hi-tech enterprise which focuses on the development, production and sale of electric system automation production, and is one of biggest hi-tech enterprises in western region of China engaged in research & development and sale of automation production for transformer.  
    
     The company covers 6000 m2 for production and office with production line for all production manufacture, mainly produce 32 testing equipments and the nation-leading EMC laboratory which ensures the reliable quality of products. The company also has a high-level talents team consisted by doctor, master, senior engineer, engineer which has the strong ability for technology development. Thereby a strong platform for high-speed growth and development is established.

     YZ100/200/300 series transformer automation system and IPAS2000 transformer background monitoring system, which are independently developed by the company, are applicable to the transformer that under 110 kV. The business involves the large-scale user of national key industry and area such as electricity, railways, petrochemical, coal, military, and etc., and provides a reliable safety for transmission and distribution of electricity to domestic electricity network and business users. Expeditionary Company is the first domestic enterprise which develops the series products of temperature and humidity, condensation controller and etc., in recent years it also develops a switchgear intelligent control devices and YZ400 series self-powered over-current protection device.

     The company's automation products are all passed type test by National Quality Supervision ＆ Testing of Relay Center, the anti-electromagnetic degree of product meets or exceeds the state standards and industry standards. In 2004, the company fully implemented ERP management, and enhanced the management of the company to a new level. In early 2005, the company introduced the CRM customer management system to strengthen the scientific management of customer information. The "humidity and temperature controller," "YZ series of integrated protection device" was awarded the title of "Xi'an brand names". The company in the development process was supported and cared strongly by The Party and state leaders such as Li Peng, Qiao Shi and etc., the leaders of Shaanxi Province, and the leaders of Xi'an City Government and Development Zone.

    At present, the sales network has covered more than 2,600 customers in 30 provinces, products have exported to North Korea, Iraq, Russia and other countries, and the long-term stable relationships with the large electricity users such as Switch Factory, Power Supply Bureau, the Design Institute has been established.