PQ-LINE
PQ-LINE
In an increasingly evolving electrical context, electronic technology brings efficiency and control but also new invisible challenges for the electrical grid, including:
Reactive Power, current imbalance and harmonics.
In most modern electrical systems, distorted and capacitive loads are now prevalent, where both inductive (motors, transformers, inductors) and capacitive (LEDs, photovoltaics, inverters, power supplies) reactive energy is generated, which cannot be compensated by traditional power factor correction.
Discover the range
PQ-VAR
PQ-VAR: suitable for traditional industry and production processes with variable loads, where there is low harmonic current distortion.
PQ-PRO
PQ-PRO: for any electrical system with significant harmonic current distortion.
PQ-MAX
PQ-MAX: strongly recommended for sectors particularly sensitive to harmonics (data centers, robotics, and advanced automation).
Benefits PQ-LINE
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Dynamic Power Factor Correction
Rapid compensation of reactive power variations (<15 ms), adapting in real time to load conditions. The benefit is ensured for both inductive and capacitive loads.
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Current Balancing
Through active balancing, reduction of line current unbalances, improving the balance of the threephase system and reducing resistive losses.
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Harmonic Mitigation
Mitigation of current harmonic contribution up to the 13 th harmonic (PQ-PRO) or up to the 50 th harmonic (PQ-MAX).
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Energy Efficiency
Reduction of overall system losses, both in distribution lines and in passive components such as transformers and capacitors.
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High efficiency and low consumption
Thanks to the innovative SiC Technology based on silicon carbide, the PQ-LINE devices ensure higher efficiency, lower consumption, increased reliability, improved performance and lighter systems.
| Feature | Traditional Power Factor Correctors |  |
 |
 |
|---|---|---|---|---|
| Technology | Capacitors | SVG (Static Var Generator) – ‘SiC’ Power MOSFETs | ASVG (Advanced Static Var Generator) - ‘SiC’ Power MOSFETs | AHF (Active Harmonic Filter) - ‘SiC’ Power MOSFETs |
| Control Algorithm | Step-by-step adjustment of reactive power only | FFT (Fast Fourier Transform) analyses the entire current waveform | ||
| Response times | Slow (in the order of seconds or minutes) | Very fast (in the order of milliseconds) | ||
| Performance under varying loads | Limited, suitable for stable loads | Excellent, suitable for variable and dynamic loads | ||
| Power factor correction for inductive loads | Yes, but not linear with respect to the load | Yes, with continuous and precise adjustment | ||
| Power factor correction for capacitive loads | No | Yes, it can absorb capacitive reactive power | ||
| Ability to balance phases | No | Yes, it can actively balance the phases | ||
| Harmonic Compensation | No, and sensitive to harmonics (risk of resonance) | No, but immune to harmonics | Yes, up to the 13th and immune to harmonics | Yes, up to the 50th and immune to harmonics |
| Long-lasting | Limited lifespan (capacitor wear) | Longer lifespan, robust electronic components | ||
| Maintenance | Maintenance Requires regular maintenance | Low maintenance, no mechanical components | ||
| Scalability | Increasing installed capacity is complicated | Easily expandable by increasing the number of modules | ||
| Energy losses | Low, but increase with harmonics | Slightly higher but stable in the presence of harmonics, maintaining efficiency even with highly variable loads | ||
| Monitoring | Not provided, optional if required | Included and with reporting | ||
| Space used | Larger | Less, compact design | ||
Recommended areas of application
Plastics Industry
Loads dominated by injection moulding machines, extruders and inverters: highly non-linear and subject to rapid fluctuations. High levels of harmonics (5th, 7th, 11th) generated by drives: risk of overheating, tripping of protective devices and reduced component lifespan. Reactive power is predominantly inductive, but a capacitive component is possible. Priority: harmonic filtering + dynamic power factor correction.
Mechanical Industry
Machine tools, CNC and drives: discontinuous and cyclic loads. Harmonics generated by inverters: issues with process continuity. Variable reactive power, often inductive, with possible capacitive excesses if power factor correction is uncontrolled. Priority: rapid power factor correction + harmonic mitigation.
Manufacturing and Automation Industry
Robots, automated lines and VSDs: highly dynamic and non-linear loads. High harmonic distortion: issues with PLCs, line stoppages, inefficiencies. Fluctuating reactive power. Priority: active filters + dynamic power factor correction.
Pharmaceutical Industry
Automated production lines, critical HVAC systems and UPS units: stable but sensitive loads, with widespread electronic components. Moderate but critical harmonics: impact on process quality and continuity. Possible capacitive reactive component (UPS units and switching power supplies). Priority: comprehensive power quality + selective harmonic filtering.
Chemical Industry
Motors, pumps, agitators and continuous processes: moderately variable loads. Presence of harmonic contribution. Reactive load mainly inductive. Priority: power factor correction + basic harmonic control.
Food Industry
Production lines, refrigeration and packaging: variable and cyclic loads. Harmonics from inverters and compressors: risk of shutdowns and inefficiencies. Mixed reactive (inductive + capacitive). Priority: dynamic power factor correction + harmonic filtering.
Data Centers
IT loads, UPS and switching power supplies: highly non-linear and capacitive-dominant. High harmonics (high THD): risk of neutral overload and losses. Stable and continuous load, with a high capacitive reactive component. Priority: active filters + capacitive reactive power management.
EV Charging Stations
AC/DC converters: highly variable and non-linear loads. High harmonic generation: grid disturbances and penalties. Reactive power often capacitive. Priority: harmonic filtering + dynamic compensation.
Companies Using Photovoltaic Systems
Inverters: harmonic generation and presence of capacitive reactive power. Possible over-compensation: high voltage and instability. Priority: reactive power control + harmonic filters.
Commercial Buildings
HVAC, lifts and lighting: loads that vary daily. Harmonics caused by inverters and LEDs. Reactive power is often capacitive (LEDs + power factor correction). Priority: intelligent power factor correction (anti-capacitive).
Industrial and Commercial Lighting (LED)
Electronic drivers: non-linear and capacitive loads. Widespread harmonics: line overheating and interference. Priority: harmonic filters + capacitive reactive power management.
Hospitals and Healthcare Facilities
Electromedical equipment, UPS: sensitive and partially non-linear loads. Limited but critical harmonics: potential malfunctions. Significant capacitive component. Priority: localised power quality + targeted harmonic filtering.
Mining and Oil & Gas Industry
Motors, pumps and compressors: heavy and impulsive loads. Harmonics are present but secondary to power peaks. Strongly inductive reactive power. Priority: robust power factor correction