The Three-phase Three-Wire Rack Mount Active Harmonic Filter (AHF) offers
advanced harmonic mitigation for three-phase power systems. Employing a
DSP+CPLD digital control core and sophisticated algorithms, this
rack-mounted AHF effectively neutralises harmonic currents up to the 50th
order. Modular design ensures scalability and ease of maintenance. Available
in various current ratings (25A to 150A) and voltage levels (220V to 690V),
the AHF provides flexible configuration options. Forced air cooling
guarantees reliable operation. This Three-phase Three-Wire Rack Mount Active
Harmonic Filter enhances power quality and system stability.
Model description:
GY
AHF
0.4
50A
/
3L
R
Enterprise code
Active Harmonic Filter
Voltage level
0.22:220V
0.4:380V±20%
0.5:500V±20%
0.69:690V±20%
Rated Capacity(kvar) 25/50/75 /100/150A
3L:Three-phase three-wire
R:Rack mount
Features:
● Use DSP+CPLD all digital control core, three-level topology technology,
advanced harmonic detection algorithm and PWM control strategy to achieve
accurate compensation of harmonic current.
● Adopt modular design, which facilitates parallel connection of multiple
modules, takes up little space and is easy to maintain.
● The structural design of independent air ducts and independent warehouses
ensures the stable operation of the equipment.
● It can filter harmonics in a wide range of harmonics, from 2 to 50
harmonics, and solve the problem of three-phase unbalance at the same time.
● The harmonic filtering rate is high. If the capacity allows, the harmonic
current filtering rate can be as high as 95%. Set 100% current limiting
output to ensure long-term stable operation of the equipment.
Applications:
Three-phase Three-Wire Rack Mount Active Harmonic Filters are essential for
ensuring clean power across diverse sectors:
● Industrial Automation: Enhancing the performance and
lifespan of three-phase equipment by reducing harmonic distortion.
● Renewable Energy Systems: Integrating renewable energy
sources seamlessly into the grid by mitigating harmonic currents.
● Oil and Gas Industry: Providing stable power for critical
operations in harsh environments, improving efficiency and safety.
● Manufacturing Plants: Minimising harmonic interference in
complex manufacturing processes, ensuring consistent product quality.
Three-phase Three-Wire Rack Mount Active Harmonic Filters offer robust and
adaptable harmonic mitigation solutions for demanding three-phase
applications.
Technical Parameters:
220V series
380V series
500V series
690V series
Altitude
< 2000m, above 2000m, derate according to GB/T3859.2
Ambient temperature
-20~+50℃
Relative humidity
≤90%, no condensation on the surface when the monthly
minimum temperature is 25℃
Pollution level
Level III below
Operating Voltage
AC220V±20%
AC380V±20%
AC500V±20%
AC690V±20%
Working frequency
50Hz±5%
Compensation current
25A
25/50/75/100 /150A
100A
100A
Grid structure
L/N
3P3W/3P4W
3P3W/3P4W
3P3W/3P4W
Number of units
connected in parallel
Ulimited
Overall machine efficiency
≥97%
Grid structure
32kHz
16kHz
12.8kHz
12.8kHz
Compensation range
2~50times, single compensation rate is adjustable
Function selection
Reactive power
Reactive power, reactive power + asymmetry
Reactive power
compensation rate
≥95%
>92%
Neutral filtering
capability
Neutral line filtering capability is 3 times that of phase
filtering capability
Full response time
<10ms
<40ms
<40ms
<40ms
Noise
≤60dB
≤60dB
≤65dB
≤65dB
Control method
2-way RS485 interface (supports GPRS/WIFI)
Protection
Overload, software/hardware overcurrent, grid overvoltage
and undervoltage, power failure, overtemperature, frequency
abnormality protection, etc.
Overload, software/hardware overcurrent, grid overvoltage
and undervoltage, grid voltage imbalance, power failure,
overtemperature, frequency abnormality, short circuit
protection, etc.
Installation method
Rack/wall-mounted
Rack
Incoming line
Back incoming(rack type)、 upper incoming(wall-mounted)
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