Power quality with verified electricity savings!
USA & Canada
(877) 714-5574

Welcome to PQSI

At PQSI we take a comprehensive approach to Power Quality. Designed to combat multiple power quality issues in one micro-processor controlled system, PQSI manages the power environment and provides smooth, clean power to the entire facility. The result? A substantial reduction, typically 4-8%, of the amount of energy required to operate. Simply put, production and quality increase, while using the same amount of (or less) energy.


PQSI Systems consist of multi-stage LRC tank circuits (inductive, resistive, capacitive), specifically designed to meet the exact needs of each application…
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From the analysis of your facility’s system to installation, warranty, support and verification, PQSI Systems takes the comprehensive approach to Power Quality.
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Learn more by viewing brochures, white papers, FAQs, and industry related news and websites.
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The impact of energy savings is far reaching – past the verified results affecting your bottom dollar, to benefiting the environment on a global level.
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PQSI Systems are custom engineered

Cost-effectively optimize the efficiency and quality of your power delivery system with PQSI!

Power quality compensation technology benefits:

  • Alleviate power disturbances facility wide
  • Reduce KW and KWH / release KVA capacity
  • Reduce equipment downtime and maintenance
  • Increase longevity of plant and equipment
  • Covered for lightning strikes
  • Installs in parallel and modular
  • Independent savings verification

By improving the quality of power, PQSI Systems saves KW & KWH from 4% – 8% while operating the same loads


Energy saving and power conditioning systems from PQSI

Our power conditioning equipment enhances power quality, resulting in increased longevity of equipment and machinery, as well as reduced downtime and maintenance.


Voltage Improvement & Stability

  • Provides real time voltage improvement and stability
  • Saves energy (KW, KVA, KWH)
  • Connects in parallel and is fail-safe
  • Is modular and expandable

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Three Phased Current Balancing

  • Provides real time phase balancing based on X/R
  • Reduces negative voltage sequence and circulating currents
  • Saves energy (KW, KVA, and KWH)

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Surge & Transient Protection

  • Fast acting response
  • Infinite response to Surges & Transients
  • No Joules threshold
  • Saves energy and provides status indication

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Broadband Harmonics Mitigation

  • Modular and expandable point of origin mitigation eliminates associated wasted energy
  • Protects one load from damaging harmonics from another load
  • Protects utility grid from bleed off

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Power Factor Improvement

  • Provides power factor (PF) of 94% – 100%
  • Typically maintains PF close to unity
  • Micro-processor control
  • Optimizes system power factor without deleterious capacitor side effects.
  • Self-Diagnostic Feature (SDF)

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KVA Capacity Release

  • Effectively reduced all 3 components of power
  • Balanced-capacity release in (XFMR) KVA
  • No adverse side effects
  • More cost effective than other devices on the market

Combatting Power Quality Disturbances

PQSI Systems is the most cost effective and comprehensive solution!

PQSI Systems alleviate the ever-present and constantly fluctuating power quality disturbances which are the result of the interaction of the electrical supply with the facility’s power distribution network and the end user’s loads. Protecting the end user’s loads in a failsafe, modular and expandable way from power quality disturbances originating from both the primary (supply side) and secondary (load side) sources will continue to be a concern of both end users and electric utilities for some time.

Power Quality Systems International -the answer for today’s industrial power consumers

USA & Canada (877) 714-5574
  • Solving Power Quality Problems Solving Power Quality Problems
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