Active Harmonic Filter APF Reduce harmonic THDi<5% UL CE CSA
Active harmonic filter (AHF) is a new active electronic harmonic filtering device to reduce voltage harmonic and current harominic and 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.
Why Should APF and SVG?
Because of power quality problem exist, and cause many problems:
Power quality problem:
Waveform distortion because of harmonics
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 frequencies of the next harmonics are: 100 Hz (2nd harmonic), 150 Hz (3rd harmonic), 100 Hz (4th harmonic) etc.
How APF beneficial to customers?
After Harmonic compensation
Improve equipments reliability, reduce economical loss caused by equipment false action.
Reduce line heating, reduce insulation aging, improve safety and reliability of electricity using.
Reduce resonance probability of compensation capacitor, improve the safety of the electricity using.
Reduce electromagnetic interference produced by harmonic, ensure communication system normal operation.
Meet national standard requirements.
Three-phase three-line and three-phase four-line
Rated Working Frequency
1. Harmonic filtering, specified harmonics fitering selectable
2. Harmonic filtering & reactive power compensation.
3-50 harmonics(specified harmonic selectable)
Amplitude compensation setting for specified harmonic
Auto Current Limitation
Auto Diagnosis and Protection
Overheat protection, heatsink exceeds 65℃, fans will be started automatically
Voltage loss protection(system voltage lower than UN85%), breaker carry out voltage loss proetction
Load over current protection
Compensation over current protection
System voltage protection
DC voltage protection
IGBT protection(IGBT inside temperature exceed 108℃, alarm IGBT fault)
2 times of IGBT rated current
Looking for active harmonic filter apf reduce harmonic thdi<5% ul ce csa? 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.