QShield is a cutting-edge static var generator designed to enhance power quality and stability in electrical systems. QShield helps businesses achieve long-term operational excellence. It provides reliable protection against power quality issues, ensuring uninterrupted performance.
Offered in three distinct versions, Core, Aura, and ProAI. QShield can be tailored to fit either a standard or utility enclosure, depending on the specific application requirements.
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Power quality issues often lead to unscheduled downtime, equipment malfunction, and damage, affecting all sectors. Disturbances like interruptions, voltage dips, and harmonic resonance can cause significant business losses, with 30-40% of downtime linked to these problems. In industry, poor power quality can cost up to 4% of annual turnover. Investing in power factor correction and harmonic filtering equipment can offer a strong ROI, depending on utility rates, production costs, and downtime impacts.
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LimitedEfficiency
MaintenanceConcerns
InconsistentPerformance
QShield is our next-gen version of traditional power factor correction. Utilising cutting edge power electronics, the QShield Static VAR Generator (SVG) is an invertor-based technology that is 100% digital and semi conductor controlled.
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>0.99
Maintains a PF of >0.99 no matter how dynamic the energy demand.
<50us
Rapid response time of <50us.
400V
LV solution that creates a stable voltage.
03 phases
Balances all three phases independently.
>20%
Corrects total harmonic distortion up to 20%.
ROI
Attractive ROI in industrial and commercial applications.
15 years
Easy maintenance and a lifespan of up to 15 years (twice the usual length of time).
1/3 size
One-third the size of traditional PFC.
Enclosure Options
Standard
Suitable for commercial & light industrial settings.
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Utility
Designed for more demanding industrial & utility environments.
Provides enhanced durability and long-term reliability in harsh conditions.
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Feature
Feature |
Core |
Plus |
Pro |
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Power Factor Correction
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Harmonic Filtering
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Unbalance Correction
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Wireless Control
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Qlens Integration
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Ambient Relative Humidity
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Ambient Temperature
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Particle Count Monitoring
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VOC, NOx & CO2 Monitoring
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Low Frequency Vibration
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High Frequency Vibration
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AI-Powered Self Optimisation
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AI-Powered Predictive Maintenance
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Power quality problems are one of the major causes of unscheduled downtime, equipment malfunction and damage. Reliability and consistency of the electrical supply are critical to business of all sectors. When power quality is imperfect due to disturbances such as interruptions, voltage dips or harmonic resonance, your business suffers.
Traditional PFC Performance
Individually fixed outputs and stepped switching.
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QShield Performance
Digital and dynamic switching.
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QShield detects and analyses the load in real time and instantaneously outputs the corrective current needed to maintain a PF of 0.99. Using state of the art inverter-based technology, no matter how dynamic the load, a PF of 0.99 can be maintained in both inductive and capacitive environments.
Leading PF Capacitive Load
Lagging PF Inductive load
Load
SVG Output
Corrected Waveform
Leading PF Capacitive Load
Load
SVG Output
Corrected Waveform
QShield detects and analyses the load in real time and instantaneously outputs the corrective current needed to maintain a PF of 0.99. Using state of the art inverter-based technology, no matter how dynamic the load, a PF of 0.99 can be maintained in both inductive and capacitive environments.
Performance |
Traditional PFC |
Q-Shield |
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Operation
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Detects load current on 1 of the three phases only.
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Detects load current on all three phases. Provides dynamic, stepless compensation to all three phases.
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Method of compensation
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Switched capacitor banks provide compensation in fixed steps (6.25kVAr, 12.5kVAr, 25kVAr, 50kVAr).
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Dynamic compensation which is stepless.
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Power Factor Correction
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Inductive load correction only in fixed steps. Leads to constant over and under correction.
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Corrects simultaneously leading and lagging power factor (inductive or capacitive) from -1 to +1.
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Load Balancing
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Cannot correct load unbalance.
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Individual phase correction.
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Harmonics
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Capacitors are not tolerant to system harmonics.
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SVGs can operate in environments with high system harmonic levels (up to 20% THDV).
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Response Time
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From 20ms to 40 seconds! This delay coupled with the stepped response means they are always under or over compensating.
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Analyses load data and responds in <15ms and a dynamic response time of <50μs. Accurate compensate in near real time.
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Size and Space
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Systems are generally 20-30% oversized due to stepped output.
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The compensation capacity of SVG’s is the same as the installed capacity.
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Mounting Arrangements
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Large cabinets are required to house the switched capacitor bank infrastructure.
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SVG’s are available in both rack mount and wall mount options with a minimal footprint. Units can be scaled in parallel.
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Overloading
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Possible due to slow response time.
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Not possible as current limited to max RMS current.
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Maintenance
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Continuous maintenance is needed. Typical lifespan of 5-8 years.
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Simple maintenance and service life up to 15 years.
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