Active Power Filter (APF)

working principles 1. External current transformer(CT)could detect real-time load current . 2. Internal DSP calculates and analyzes the reactive power content of the system. 3. Control PWM to send signal to IGBT to generate reactive power compensation current for power factor compensation.   Electrical Features& Specifications   Item Description Main Function Harmonic Filter Setting filtering from 2-51 times(under only harmonic filtering function) While choose priority, the harmonic filtering is 2-13th Auto/Priority function The user can also set the priority function, including H+Q/ Q+H/Q+H+B/H+Q+B  (Q power factor, H harmonic filtering, B, unblance )ref:Tab.4-1 Application Hotel,Car park, Car charger station,Car 4S store,IDC, hospital,Railway,water treatment and other non-liner load Electrical Rated voltage 380/400Vac or 690Vac Wiring 3P3W or 3P4W Frequency 50±2Hz Capacity 20~100A(According to SVG type) Module Consumption ＜2kW Efficiency Up to 97.5% switching frequency 20kHz Response time Fast response time＜50μs Total response time＜5ms CT ratio 150:5~6000:5 Parallel Max.5 (customization acceptable) Terminals Communication RS485 Environment Operating environment In-door, free from moisture, dust, corrodent or flammable gases, oil mist, vapor, water leakage or salt water. Altitude <1000m （customized acceptable） Work temperature -20℃~+50℃( derating is required from 40℃ to 50℃, increase every 1℃ above 40℃, derating 2%, highest temperature allowed: 50℃ ) Humidity Less than 95%RH, no condensing Storage temperature -20℃~+70℃ Vibration Less than 5.9m/s2 (0.6g) Enclosure Protection degree IP20 Colour 7035 grey (customization acceptable) Size According to APF type(refer: APF Dimensions) Cooling Fan cooling