Anhui Zhongdian(ZDDQ) Electric Co., Ltd. established in 2001. ZDDQ Technology Park locates in Bengbu City of Anhui Provice. We're a professional and leading manufacture, focus on advanced power quality improvement and power factor correction. APF,SVG,APFC are our main products. ZDDQ has a leading independent R&D team and quality supervision system, and maintain long-term cooperative relations with China University of Science and Technology, Zhejiang University and a number of well-known institutions.We insists on customers' demand as the guide, with the technology innovation as the drive, through 20 years technology accumulation, has already owned a series of power quality products including APF, High voltage and low voltage SVG, High voltage and Low voltage Automatic Power Factor Correction,which are widely used in many countries and industries such as power grid, hospital, sewage plant, railway, subway, airport, seaport, oil and chemical industry, metallurgy, coal mine, tele-communication and high buildings and so on.