Low Voltage APF active power filter device works: Low active power filter APF system is a dynamic harmonic filter and dynamic reactive power compensation system of new power electronic devices. Three-phase parallel converter which consists of IGBT tubes via a series reactors in parallel in the power line, the load current collected APF control system through the current transformer, through real-time detection circuit load current harmonic component and the fundamental reactive component separated by the control system fast operation, using the latest technology to trigger PWM control of the IGBT. By the large-capacity three-phase IGBT tubes in parallel converter compensating current injected into the system, the compensation current and load current harmonic currents are equal in magnitude and opposite in direction, cancel each other charger harmonic control, to achieve a harmonic filter function, ensure that the final flow into the system current is a sine wave. Also what is the harmonic control, such as user filtering and reactive power compensation requirements synchronization is complete harmonic frequency furnace control, APF only way to change the settings, you can achieve harmonic filtering and reactive power compensation to improve the power factor improve grid power quality. Active Power Filter features simultaneously filter out 2 to 50 times harmonics, or select 2 to 50 times to compensate for any frequency harmonic response time of less than 300μs use 3DSP + CPLD digital control and international brands high speed IGBT, closed loop control, precise application of the four-phase line harmonic filter technology that eliminates neutral current automatically eliminate resonance and impedance from power system harmonic impedance change impacts have compensation; while compensating harmonics and reactive power; while compensating harmonics, no power and load three-phase current unbalance three modes of electronic overload protection with a machine inverter control fast FPGA, digital signal processing power harmonic control modular design, easy to expand multi-parallel centralized remote network monitoring convenient monitoring maintenance work under satisfactory working conditions, non-maintenance charger malfunction harmonic control, learning Connaught Electrical and Mechanical, Ye harmonic control is provided by conventional Connaught Mechanical and Electrical Equipment Co., Ltd., Henan. 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.