400V Active Harmonic Filter (AHF)
-Rated Frequency: 50Hz/60Hz(45Hz~63Hz)
-Compensating Current: 7A,15A,25A,50A,75A, 100A,150A,200A
-Harmonic Compensation Rate: ≥95%
-Efficiency: ≥97%
-Installation: Rack-Mounted, Wall-Mounted
- Overview
- Specification
- Apparence
- Related Products
Product Overview
The working principle of AHF is to detect the load current in real time.Based on a specified sub harmonic current detection algorithm,the harmonic current is gradually separated,and a control signal is generated according to the set fltering percentage to drive the IGBT to output a compensation current with the same amplitude and opposite phase as the load harmonic current,achieving the purpose of harmonic compensation function.

AHF 400V Technical Specification
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AHF 400V Series |
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Altitude |
<2000m (derated per GB/T 3859.2 above 2000m) |
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Ambient Temperature |
-10~+50℃ (derated above 40℃) |
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Relative Humidity |
≤ 90%, no condensation on surface at monthly min. temperature of 25°C |
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Pollution Level |
Below Level III |
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Operating Voltage |
AC380V (-20%~+20%) |
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Operating Frequency |
50Hz/60Hz(45Hz~63Hz) |
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Rated Compensation Capacity |
7A,15A,25A,50A,75A, 100A,150A,200A |
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Power Grid Structure |
3P3W, 3P4W |
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Numbersin Parallel |
Unlimited |
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System Efficiency |
≥97% |
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Switching Frequency |
16kHz |
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Function Selection |
Harmonics,Harmonics+Unbalance |
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Compensation Scope |
2~50 times,with adjustable compensation rate per time |
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Harmonic Compensation Rate |
≥95% |
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Full Response Time |
<40ms |
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Communication |
2*RS485 communication interfaces (Supports WIFI) |
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Protection |
Overload,Software/Hardware Overcurrent,Over/Undervoltage,Unbalance, Power Supply Fault, Overtemperature, Frequency Anomaly, Short Circuit Protection |
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Installation |
Rack-Mounted,Wall-Mounted |
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Entry Line Method |
Rear Inlet(rack-mounted), Top Inlet(wall-mounted) |
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Protection Level |
IP20(IP54 is customizable) |
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AHF 400V Product Appearance
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Module Model |
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Models |
Compensation Capacity(A) |
System Voltage(V) |
Dimensions Width*Depth*Height(mm) |
Cooling System |
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AMS AHF-0.4-25A/4L-W |
25 |
400 |
550*460*92.2 |
Forced Air Cooling |
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AMS AHF-0.4-50A/4L-W |
50 |
400 |
550*460*92.2 |
Forced Air Cooling |
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AMS AHF-0.4-75A/4L-W |
75 |
400 |
587*500*193.2 |
Forced Air Cooling |
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AMS AHF-0.4-100A/4L-W |
100 |
400 |
624*500*243.2 |
Forced Air Cooling |
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AMS AHF-0.4-150A/4L-W |
150 |
400 |
624*500*243.2 |
Forced Air Cooling |
| AMS AHF-0.4-200A/4L-W | 200 | 400 | 785*511*252.0 | Forced Air Cooling |
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Cabinet Model |
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Models |
Compensation Capacity(A) |
System Voltage(V) |
Dimensions Width*Depth*Height(mm) |
Cooling System |
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AMS AHF-0.4-200A/4L-C |
200 |
400 |
1250*1000*2200 |
Forced Air Cooling |
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AMS AHF-0.4-250A/4L-C |
250 |
400 |
1250*1000*2200 |
Forced Air Cooling |
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AMS AHF-0.4-300A/4L-C |
300 |
400 |
1250*1000*2200 |
Forced Air Cooling |
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AMS AHF-0.4-400A/4L-C |
400 |
400 |
1250*1000*2200 |
Forced Air Cooling |
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AMS AHF-0.4-500A/4L-C |
500 |
400 |
1250*1000*2200 |
Forced Air Cooling |
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AMS AHF-0.4-600A/4L-C |
600 |
400 |
1250*1000*2200 |
Forced Air Cooling |
Note: -R(Rack)/ -W(Wall)/ -C(Cabinet)