Electronic & Electrical
400V 230V 480V 690V Active Harmonic Filter 50A 100A 150A Module Reduce Harmonic Less Than 5% Filter 2-50 Harmonics
No.1-1
Description
Active harmonic filter introduction?Active harmonic filter (AHF) is a new active electronic harmonic filtering device to reduce voltage harmonic and current harmonics and improve power quality.Based on voltage source inverter, it& acute;s connected in parallel with non-linear loads which need to compensate.
For compensating harmonic current which is with changing Amp and frequency and reactive power, it overcomes the shortcomings of traditional passive filter. It has the advantages of high compensation accuracy and fast dynamic response etc. Why need Active Harmonic Filter? Because harmonic exist caused by non linear components such as UPS, Switching power supply, Rectifier, Frequency inverter, Frequency adjustable air conditioner, Inductive heating furnace, Electronic computer, Charger and Lights etc. Harmonicwill bring below problems, thats why the active harmonic filter is required? 1.Bad effect to power grid and power equipments Effect to power capacitor-1.add power loss, 2.get abnormal hot, 3.shorten lifespan.Effect to Transformer-1.increase copper loss,2.shorten lifespan, 3.cause burnt downEffect to power cable-1.less current conduction ability, 2.cause resonance.Effect to power distribution circuit-1.affect line stable and safe running, 2.distortion of current and voltage waveformEffect to power equipments-1. low voltage switching equipments misact, 2. cause power trip.Effect to motor-1.shorten lifespan,2.increase power loss, 3.damage motor2. Bad effect to surrounding equipments Reduce relay protection system and automatic system reliabilityInterference to communication system-cause distortion of image, data treatment error, damage equipments computer, TV etc.3. More power loss, increase power cost Harmonic generates extra harmonic power and increase company& acute;s power.Harmonic& acute;s skin effect on cable cause very big cable temperature rise, power changes to heat on cable and cause power waste, and cause insulation damage, cause discharge to earth.Transformer& acute;s iron
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Beijing Green Power Technology Co., Ltd
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Address: Building 19,Yuquan Huigu, Qinghua Sci-Tech. Park, No. 3 Minzhuang Road, Haidian District, Beijing.,
Beijing, Beijing
China, 100195
Tel: 86-010-57232886
Fax: 86-010-88990806
