Active Harmonic Filter

SET 690V/800V Active Harmonic Filter, 50A/100A

Model: SET-AHF/50 · SET-AHF/100

690V/800V active harmonic filter for 3P3W systems, available in 50A and 100A. THDi ≤5%, 2nd–51st odd-harmonic filtering and ≤5 ms response.

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SET HIGH-VOLTAGE ACTIVE HARMONIC FILTER

690V / 800V AHF · 50A / 100A

Dedicated 3-phase 3-wire active harmonic filter for 690V and 800V networks, combining harmonic mitigation and bidirectional reactive-power compensation.

50A / 100ARated currents
THDi ≤5%At rated load
≥97%Typical reduction
≤5 msOverall response

Available Models

Rated VoltageSystem VoltageCurrentModel
690 VAC528–790 V50 ASET-AHF/50-6
690 VAC528–790 V100 ASET-AHF/100-6
800 VAC680–920 V50 ASET-AHF/50-8
800 VAC680–920 V100 ASET-AHF/100-8

Technical Specifications

Electrical connection3-phase 3-wire (3P3W)
Rated frequency50 / 60 Hz
Compensation modesHarmonic mitigation + inductive/capacitive reactive-power compensation
Filtering range2nd–51st odd harmonics
Filtering performanceTHDi ≤5% at rated load; typical harmonic reduction ≥97%
Target power factorAdjustable from −1.0 to +1.0
Response timeInitial ≤50 μs; overall ≤5 ms
Current limitationAutomatic, limited within 100% rated capacity
Switching frequency25.6 kHz
Thermal loss≤2.5% of rated capacity
Topology / controllerIGBT; DSP + FPGA; intelligent FFT adaptive algorithm
HMI / communicationExternal 7-inch touch HMI; Modbus; RS485; CAN bus; mobile app support
Cooling / noiseIntelligent PWM air cooling; <60 dB (<45 dB at low fan speed)
EnvironmentIP20; −20°C to +55°C; RH ≤95% non-condensing; ≤2000 m rated

Dimensions & Weight

ModelsSize (W × H × D)Net Weight
SET-AHF/50-6 · SET-AHF/100-6680 × 200 × 550 mm44 kg
SET-AHF/50-8 · SET-AHF/100-8680 × 200 × 550 mm48 kg

Quality Documentation

Datasheet references: ISO 9001:2015, ISO 14001:2015, CE and Type Test Report.

Need a 690V / 800V AHF Selection?

Send your voltage, load current, THDi and single-line diagram. Our engineers will confirm whether the 50A or 100A model is suitable.

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