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Shop No. F43B, Spine City Mall
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Detuned Filter Reactor
PQI Detuned Filter Reactor are engineered to provide reliable power factor correction while effectively protecting electrical systems from harmful harmonic resonance. Designed specifically for modern industrial environments with non-linear loads, these systems ensure stable, efficient, and long-lasting reactive power compensation.
By combining premium self-healing power capacitors with precisely tuned detuned reactors (7% / 14%), PQI Detuned Filter Reactor prevent harmonic amplification, improve power quality, and enhance the overall reliability of LT distribution networks.
What is a Detuned Capacitor Bank?
A Detuned Capacitor Bank is a power factor correction system that integrates capacitors with series reactors to shift the system’s resonance frequency below dominant harmonic orders. This design avoids harmonic resonance, protects capacitors, and ensures safe operation in installations with VFDs, UPS, rectifiers, and other non-linear loads.
PQI Detuned Filter Reactor are available in multiple kVAr ratings and voltage classes, making them suitable for RTPFC Panels, harmonic filter panels, and industrial power distribution systems.
Technical Features & Capabilities
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Detuned reactors with 7% & 14% tuning to suppress harmonic resonance
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kVAr range from 5 kVAr to 100 kVAr per stage
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Compatible with 440V / 480V / 525V / 690V systems
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Self-healing MPP / APP power capacitors with long operational life
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Low losses (< 5W per kVAr) for high energy efficiency
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Thermal protection embedded in reactor windings
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Copper / Aluminium windings with VPI-treated insulation
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IP-20 design for enhanced safety and heat dissipation
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Ideal for APFC, Hybrid APFC, and Harmonic Filter Panels
Key Benefits of PQI Detuned Filter Reactor
✔ Prevents capacitor failure caused by harmonic resonance
✔ Improves overall power quality and system stability
✔ Enhances lifespan of capacitors and connected equipment
✔ Reduces overheating, voltage distortion, and nuisance tripping
✔ Ensures reliable power factor correction in harmonic-rich environments
