Power transformer economic operation in ensuring the safe operation of the transformer and meet the user power quality and reliability on the basis of low voltage switch cabinet factory, make full use of substation equipment conditions, select the preferred mode of operation the transformer, the transformer itself reduce energy consumption, improve Its power supply side power factor, to achieve the goal of reducing energy loss. Power load and low voltage switch board transformer capacity and determine the number of units, related to the transformer economic operation mode; the implementation of economic operation of transformer substation within the number of units, and transformer capacity and loss of their own performance parameters are closely related to the transformer is built in to ensure safe and reliable A comprehensive economic and technical activities under the premise of supply, through the power transformer accessible from the design selection, running the entire decommissioning process; in the substation construction, expansion and transformer capacity increase is necessary to consider their associated factors and conditions; the implementation of transformer economic running, transformers and substation equipment itself and in general should have the following conditions are met transformer design and selection should be given full consideration. High Voltage Switchgear means for power system generation, transmission and distribution, power conversion and consumption play-off, control or protection effect of low voltage, high voltage switchgear according to the operating voltage rating at 3.6kV ~ 550kV electrical products, high voltage disconnectors and grounding switches, high voltage load switch, high voltage recloser and segmentation, high pressure operation mechanism, high pressure explosion-proof electrical equipment and high voltage switchgear and other categories. Low voltage switch equipment, learning Connaught Electrical and Mechanical (certified), Jiaozuo City, Henan Wenxian low voltage is provided by habit Connaught Electrical and Mechanical Equipment Co., Henan Xi Connaught Electrical Equipment Co. (www.hnxinuo.com) is Zhengzhou, electronics, electrical products processing leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In practice Connaught Electrical and Mechanical leadership with the staff warmly welcome all inquiries negotiations to create learning Connaught Electrical and Mechanical better future.