Dynamically compensate 2-50 times all harmonics or specific harmonics Reduce harmonic to less than 5% What Is Harmonic? A harmonic of a wave is a component frequency of the signal that is an integer multiple of the fundamental frequency ,. i.e. if the fundamental frequency is 50Hz , the...
i.e. if the fundamental frequency is50Hz, thefrequencies of the next harmonics are: 100 Hz (2nd harmonic), 150 Hz (3rd harmonic), 100 Hz (4th harmonic) etc.
Main nonlinear load includes:
Switching power supply
Frequency adjustable air conditioner
Inductive heating furnace
Main harmonics polluting industries:
aktive harmonic filteris a new electronic harmonic filtering device toreduce voltage harmonic and current harominicand improve power quality.
Based on voltage source inverter, it’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.
APF adopts innovative intelligent control algorithm, through space vector modulation technology, generates compensation current with equal value and opposite direction to harmonics and reactive power and puts it into electric network and achieves harmonic suppression and reactive power dynamic compensation.
Over voltage, under voltage, short circuit protection, inverter bridge reverse protection, over compensation protection
Wall type/rack type
<1500m, power rating reduced at 1500-4000m
5%-95%, without condensation
Comparison with Europe active filter
Beijing Green Power
Input AC Voltage
Input AC Range(V)
380V -40%~ 20%/ 480V -20%~ 20%/ 690V -30%~ 15%
Input Frequency (Hz)
Dimension of 50A (mm)
Module Quantity for Parallel
Intelligent Air Cooling
Forced Air with Inner Liquid
2~50 harmonic and it can be filtered
at the same time
Appointed Time Harmonic Filter
Yes 2~50 harmonic optional,and LCD
and software monitor
FFT & Instant Reactive Power
Fast Response Time≤50us, Full Response Time≤5ms
Reactive Power (VAR)
3 Phase Balace Compensation
Yes,Auto Current Limit at 100%
250% for 10ms
TCP/IP Interface,Dry Contact
RS485, Ethernet, TCP/IP Interface
Yes,All Data With Setting Interaction
Yes, AHF Viewer
Summary: Beijing Green Power active filter general performance is better than Europe brand. The items with red color is better performance.
Active harmonic filter other features
Have user-friendly operating software foreasy operation.
Could withstand load short circuit shock, and restart after removal of short circuit.
Automatically eliminate resonance, not affected by electric network impedance and system impedance change.
Could simultaneously filter2-50 harmonicsin three-phase four -line distribution system, and is able to choose compensation or not for each harmonic from 2-50 harmonics .
The system has fast and completefault self detection features, including undervoltage or overvoltage , overcurrent, fan failure , power devices over temperature , input fuse failure etc. fault self detection, all fault could be alarmed by APF and automatically taken corresponding actions.
APF’s high-frequency carrier itself can not be feedback to electric network.
Overcompensation must be avoided during filtering, i.e. APF could realize only filtering without generating reactive power to avoid over compensation completely, or by setting target power factor, the remaining energy after filtering is used for reactive power compensation.
Have soft start control loop to avoid too large inrush current while starting and to limit the current within rated range.
When the system is powered down, the filter could be automatically disconnected; After system recovery, the filter can beautomatically restored.
1) Is there a warranty? If so, how is it fulfilled?
Yes.Normally 1 year.If necessary,we will supply you spare parts with cargo in advance.
If with problem,show us vedio or pictures,plus discription,we will give you the solution and replacement part free to you soonest.Quick troubleshoorting.
And in some case,our engineers will come to you for onsite test or commissioning.
All consideration for you.
2) Are spare parts available?
Sure,normally IGBT,control board etc.All original ready for you.
all components with our strict QC.
3) Is there repair training available?
Yah.You can come to us for face to face training,or our engineers to you,or our vedio and manual to show you how to repair.
And originally our quality reliable, and design all for customer's convenience,easy repair.Don't worry.
4) Is it possible we could get a demo unit?
No matter distributor or end customer,we will show you the demo unit,MOQ=1 set.
5) Do you have any English phone technical support?
Yes.Our professional sales and engineering team with fluenrecent English,if you need,we can dicuss on the phone for technique support.Plus,Online talk available,e.g.Skype or QQ,wechat etc.
6) On the sizes you quoted me, can they be connected in parallel?
Yes,our design is based on module,so you can make all (e.g. 10 modules) in parallel for current expansion,easy repair,lower shipping cost etc.And with easy operation.
7) What is the lead time?
Normally our lead time about20 days.But in your urgent case,we will try our best to work out a solution for you.
All components in stock at our side,but design,production and aging test etc. still take time.
More than20 yearspower electronics engineering ability
360 degree service
Easy to approach:
1 hour email reply you (7:00 am-11:00 pm UTC 8)
16 hours Skype online (7:00 am-11:00 pm UTC 8)
16 hours mobile online (7:00 am-11:00 pm UTC 8)
Provide technical solution
2 year warranty
CRM management for quick customer information inquiry
Spare parts available
OEM or ODM
Alibaba e-Credit online
We have overseas agent such as Germany, India, Korea,South America, South Africa, Australia etc. for local service and support.
Looking for rack type, wall mounted active harmonic filter? Green Power Technology is one of the professional manufacturers and suppliers. We have been dedicated to this field for over 20 years and already exported products to India, USA, Germany, etc. Equipped with a productive factory, we warmly welcome you to buy our high quality products made in China at competitive price or try our customized service.