Active Harmonic Filter AHF50/75/100/150/200A

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Active Harmonic Fitler(AHF)

Product function
Reduce current distortion THDi <5%
Harmonic compensation frequency:2~50 times optional
It can compensate 15 different harmonics at the same time

- Wall Mounted
- Rack Mounted

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Quantity

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1100

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编号 :

AHF04

Description

Commodity name: Active Harmonic Filter AHF50/75/100/150/200A
Commodity ID: AHF04

Product function Reduce current distortion THDi <5% Harmonic compensation frequency:2~50 times optional It can compensate 15 different harmonics at the same time

Production Description

Active harmonic filters (AHF/APF) are typically stand-alone devices that reduce the high levels of harmonics produced by energy efficient non-linear loads.They work by injecting harmonics into the electrical system in equal and opposite measure to the existing system harmonics.As previously mentioned, harmonic filters are used to eliminate harmonic distortion caused by excess currents in and out of appliances. It can prevent large quantities of harmonics from causing damage to equipment, downtime of operation, and preventing an increase in operating costs.

Technical parameters

Standard type	400V					400V	480V	690V
	35A	50A	75A	100A	150A	200A	100A	100A
Syslem paramelers
Rated input wire voltage	380V(-15%～+20%)					380V(-20%～+20%)	480V(-20%～+20%)	690V(-30%～+15%)
Grid froguency	50/60Hz(range:45Hz～62Hz)
Number of paralel machines	1~10 sets
Overall efficiency	≥97%					≥98%
Grid structure	Three-phase three-wire/three-phase four-wire					Three-phase three-wire
Current transforme	150/5~10000/5
Circuit topdlogy	Tri-level
Performance index
Rated capacity	35A	50A	75A	100A	150A	200A	100A	100A
Fdter range	2~50 times optional and adjustable
Filtering ablity	THDi<5%
Response time	<15ms					<20ms
Control algorithm	FFT algorithm,intelligent FFT algorithm,instantaneous reactive algorithm
Switching frequenc	20kHz
Cooling mode	Intelligent air cooling
Noise index	<56dB					<65dB
Communication monitoring ability
Communication interface	Rs485,internet access
Communication protocal	Modbus Protocol.General Electric Protocol,TCP/IP
Display interface	4.3-inch LCD or 7-inch LCD touch color screen;LED indicator light
PC-end software	Yes,all parameters can be set directly through PC
Protection functio	Overvoltage/undervoltage protection,short circuit protection,inverter bridge reverse protecti on and overcompensation protecti an
Fault alarm	Yes,up to 256 alarm records
Monitoring mode	Support centralized monitoring and independent monitoring
Mechanical characteristic
Fixed mode	Rack type,wall-mounted type					Rack type
Incoming line mode	Rack-type back-incoming line,wall-mounted up-incoming line					Back-incoming line
Color	National Standard 7035-Light Grey(Customizable)
Environmental requirements
Altitude	<1500m,acoording to the rated capacity:between 1500m and 5000m,aocording to national standard GB/T 3859.2.for every 100mincrease,the rated capacity is reduced by 15
Operating temperature	-25～40℃
Relative humidity	5%～95%,no condensation
Grade of protection	IP20

Working principle of HKK-APF

The Active harmonic filter monitors the load current real-time through the external current transformer CT, and extracts theharmonic component of the load current through the internal DSP computing, then sends it through the PWM signal to the internalIGBT, the inverter produces a current equal to the load harmonic and opposite to the harmonic direction and injects the current intothe grid to compensate the harmonic current realizing the function of harmonic control.