400V Active Harmonic Filter (AHF)

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n","info":"Active Harmonic Filter(AHF)\nHarmonic control, Reactive power compensation, Three-phase unbalance control\nActive harmonic filters (AHF) are the ultimate answer to power quality problems caused by waveform distortions, low power factor, voltage variations, voltage fluctuations and load unbalance for a wide range of segments and applications. They are a high performance, compact, flexible, modular and cost-effective type of active power filter (APF) which provide an instantaneous and effective response to power quality problems in low or high voltage electric power systems. They enable longer equipment lifetime, higher process reliability,improved power system capacity and stability, and reduced energy losses, complying with the most demanding power quality standards and grid codes.\nAHFs eliminate waveform distortions from the loads like harmonics, inter harmonics and notching,and harmonic voltages caused by harmonic currents, by injecting in real-time the distorted current of same magnitude but opposite in phase in the electric power system. In addition, AHFs can take care of several other power quality problems by combining different functions in a single device.\nAHF Working Principle：\nExternal CT detects the load current, DSP as CPU has advanced logic control arithmetic, could quickly track the instruction current, divides the load current into active power and reactive power by using the intelligent FFT, and calculates the harmonic content rapidly and accurately. Then it sends a PWM signal to the internal IGBT's driver board to control the IGBT on and off at 20KHZ frequency. Finally, it generates an opposite phase compensation current on inverter induction, at the same time CT also detects the output current and negative feedback goes to DSP. Then DSP proceeds to the next logical control to achieve a more accurate and stable system.\n\n\n\n\n\nAHF Technical Specifications\n\n\n \n\n\nType\nSeries 220V\nSeries 380V \nSeries 500V \nSeries 690V \n\n\nNorminal Voltage\nAC220V±20%\nAC380V±20%\nAC500V±20%\nAC690V±20%\n\n\nRated Frequency\n50Hz±5%\n\n\nCompensating Current\n25A\n25A, 50A, 75A, 100A, 150A\n100A\n100A\n\n\nNetwork\nL/N\n3P3W/3P4W\n\n\nResponse Time\n＜10ms\n＜40ms\n\n\nNumbers in Parallel\nNo limitation\n\n\nHarmonic Compensation Rate\n＞92%\n\n\nHarmonic Filtering\n2~50th harmonics.* The number of compensation can be selected.* The range of single compensation can be adjusted\n\n\n\n\n\nMachine Efficiency\n＞97%\n\n\nSwitching Frequency\n32kHz\n16kHz\n12.8kHz\n\n\nCommunication Methods\nTwo-channel RS485 communication interface \n\n\n\n\n\n(support GPRS/WIFI wireless communication)\n\n\nProtection Function\nOverload protection, hardware over-current protection, over-voltage protection, power failure protection, over-temperature protection, frequency anomaly protection, short circuit protection, etc\n\n\nAltitude without Derating\n＜2000m\n\n\nTemperature\n-20℃ ~ 50℃\n\n\nHumidity\n＜90% RH\n\n\nPollution Level\nBelow level Ⅲ\n\n\nNoise\n＜60dB\n＜65dB\n\n\nInstallation\nRack/Wall-mounted\n\n\nInlet Way\nBack entry (for Rack) / Top entry (for Wall-mounted)\n\n\nProtection Grade\nIP20\n\n\n\n\n\n\n\n\nAHF Product Appearance\n1、Rack-mounted\n\n \n\n\nModel\nCompensation Capacity (A)\nSystem Voltage (V)\nSize (W1*D1*H1)\nCooling Mode\n\n\n\n\nAHF-0.22-25A/2L-R\n25\n220\n220*330*160\nForced Air Cooling\n\n\nAHF-0.4-25A/4L-R\n25\n400\n460*490*89\nForced Air Cooling\n\n\nAHF-0.4-50A/4L-R\n50\n400\n460*490*89\nForced Air Cooling\n\n\nAHF-0.4-75A-4L-R\n75\n400\n500*510*190\nForced Air Cooling\n\n\nAHF-0.4-100A/4L-R\n100\n400\n500*550*240\nForced Air Cooling\n\n\nAHF-0.4-150A/4L-R\n150\n400\n500*550*240\nForced Air Cooling\n\n\nAHF-0.5-100A/4L-R\n100\n500\n495*675*275\nForced Air Cooling\n\n\nAHF-0.69-100A/4L-R\n100\n690\n495*675*275\nForced Air Cooling\n\n\n\n\n\n\n\n\n\n\n2、Wall-mounted\n\n\n\n\nModel\nCompensation Capacity (A)\nSystem Voltage (V)\nSize (W2*D2*H2)\nCooling Mode\n\n\n\n\nAHF-0.22-25A/2L-W\n25\n220\n220*160*330\nForced Air Cooling\n\n\nAHF-0.4-25A/4L-W\n25\n400\n460*89*490\nForced Air Cooling\n\n\nAHF-0.4-50A/4L-W\n50\n400\n460*89*490\nForced Air Cooling\n\n\nAHF-0.4-75A-4L-W\n75\n400\n500*190*510\nForced Air Cooling\n\n\nAHF-0.4-100A/4L-W\n100\n400\n500*240*550\nForced Air Cooling\n\n\nAHF-0.4-150A/4L-W\n150\n400\n500*240*550\nForced Air Cooling\n\n\nAHF-0.5-100A/4L-W\n100\n500\n495*275*675\nForced Air Cooling\n\n\nAHF-0.69-100A/4L-W\n100\n690\n495*275*675\nForced Air Cooling\n\n\n\n\n\n3、Full Cabinet Load\n\n\n\n\nModel\nCompensation Capacity (A)\nSystem Voltage (V)\nSize (W3*D3*H3)\nCooling Mode\n\n\n\n\nAHF-0.4-100A/4L-C\n100\n400\n1000*1000*2200\nForced Air Cooling\n\n\nAHF-0.4-150A/4L-C\n150\n400\n1000*1000*2200\nForced Air Cooling\n\n\nAHF-0.4-200A/4L-C\n200\n400\n1000*1000*2200\nForced Air Cooling\n\n\nAHF-0.4-250A-4L-C\n250\n400\n1000*1000*2200\nForced Air Cooling\n\n\nAHF-0.4-300A/4L-C\n300\n400\n1000*1000*2200\nForced Air Cooling\n\n\nAHF-0.4-400A/4L-C\n400\n400\n1000*1000*2200\nForced Air Cooling\n\n\nAHF-0.5-300A/4L-C\n300\n500\n1000*1000*2200\nForced Air Cooling\n\n\nAHF-0.69-300A/4L-C\n300\n690\n1000*1000*2200\nForced Air Cooling\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n","desc":"Active Harmonic Filter(AHF)\nHarmonic control, Reactive power compensation, Three-phase unbalance control\nActive harmonic filters (AHF) are the ultimate answer to power quality problems caused by waveform distortions, low power factor, voltage variati...","date":"2024-10-23","visits":0,"color":"","category":"AHF 400V Series","sname":"","slink":"https://www.ampersure.com/75a","tag":"","down":"","downname":"","downurl":"","prev":null,"next":null,"count":1,"specs":[],"skus":[],"product_summary":"","product_image_video":"","brand_manufacturer":"","product_code_spu":"","extension_title":"","extension_content":[{"extension_title":"","extension_content":""}],"product_price":"0.00","need_show_price":0}