High pressure H.APF active power filter and reactive compensation devices integrated into the twenty-first century, the high-power electronic devices has been the rapid development of energy-efficient harmonic control, IGBT technology has become more sophisticated, it is of high-power active filter APF research and development from the laboratory to practical market applications to create adequate conditions. Using the power active filter to eliminate harmonics is the most effective solution mine harmonic control, widespread market demand. Han Wei Harbin Electrical Equipment Co., Ltd. is dedicated to dynamic reactive power compensation and filtering equipment development and production of high-tech enterprises harmonic control, Wei Han Electric and Harbin Institute of Technology cooperation led light harmonic control, professional commitment to active power filter the research and development for nearly a decade of history, development, active filter units WHAPF series of electricity production has been successfully used in automotive, offshore, petrochemical, textile and other industries. APF active power filter means is a dynamic new power electronic devices suppress harmonics and dynamic reactive power compensation system. Real-time detection of the load current harmonic and fundamental reactive component, fast operation via the control system, three-phase parallel converter compensating current injected into the system, the compensation current and load current harmonic currents are equal in magnitude, direction Instead, they cancel each other out, eventually into the system to ensure that the current is a sine wave. In addition, the device only way to change settings, change the compensation current injection system phase angle, can achieve harmonic filter load while compensating reactive power, to improve the power factor, the purpose of improving power quality. BDKJ-TC intelligent reactive compensation devices means About BDKJ-TC intelligent reactive compensation devices to meet the high-voltage lines reactive compensation needs careful development and design, is the automatic control device by computer technology. By controlling the means effective and rational control switching shunt capacitor banks in order to improve power factor, reduce line losses, improve voltage quality. BDKJ-TC intelligent reactive compensation device according to the line voltage, line current control set / two parallel switching capacitor compensation device, while the capacitor to achieve protection in accordance with the capacitor current and line voltage. The device built several sets of control strategies, can remote / local selection control strategy, modify the control value. With a variety of communication GPRS, radio and other options. BDKJ-TC intelligent reactive compensation device for wireless data communication using the latest communication technology and GPRS mobile GSM mobile communications network as a transmission medium, using GPRS high resource utilization, high transfer rate, access time is short and so as a means of data transmission channel between the dispatch center. Harmonic case study Connaught Electrical and Mechanical, Gongyi City, Henan harmonic control by learning 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.