PCNTDA, Bhosari
Shop No. F43B, Spine City Mall
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sales@pqi-ea.com
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Active Harmonic Filter (AHF)
PQI’s Active Harmonic Filters (AHF) are advanced power quality solutions designed to eliminate current harmonics, improve power factor, and enhance overall electrical system reliability. Engineered for modern industrial and commercial installations, AHFs ensure compliance with IEEE-519 standards while protecting sensitive equipment.
Using real-time current sensing and intelligent control algorithms, PQI AHFs dynamically inject compensating currents to cancel harmonics, balance loads, and stabilize power quality even under highly non-linear and fluctuating load conditions.
What is an Active Harmonic Filter?
An Active Harmonic Filter is a solid-state power electronic device that continuously monitors load currents and actively mitigates harmonic distortion by generating equal and opposite harmonic currents in real time.
Unlike passive filters, PQI AHFs provide adaptive harmonic mitigation up to the 51st order, reactive power compensation, load balancing, and neutral current compensation — all in a single intelligent solution.
Key Features & Capabilities
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Current harmonic mitigation up to 71st order
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Available range up to 200A (30A / 50A / 75A / 100A / 150A / 200A)
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3-level topology for superior performance and efficiency
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100% leading & lagging reactive power compensation
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Active load balancing and neutral current compensation
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Direct operation up to 800V RMS grid supply
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IEEE 519 compliant harmonic control
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Compatible with UPS, Diesel Generators, and renewable sources
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Modular design for future capacity expansion
Benefits of PQI Active Harmonic Filters
PQI Active Harmonic Filters significantly reduce Total Harmonic Distortion (THD), improve power factor, and enhance energy efficiency, resulting in longer equipment life and reduced operational losses.
By dynamically adapting to changing load conditions, PQI AHFs ensure stable power quality, uninterrupted operations, and compliance with utility and regulatory standards.
