Prevent Distortion with

Active Harmonic Filters

Protect your electrical system with proven technology and the support of 30 years' engineering expertise.

Harmonic voltages (harmonics) within the power grid have the potential to cause equipment malfunction, overheating and hardware damage. Active Harmonic Filters can mitigate the risks associated with harmonic damages, improve power quality, and reduce energy costs.

Why Active Harmonic Filters?

Eliminate harmonic pollution

Harmonic voltages and current in an electric power system are the result of non-linear electric loads. Harmonic frequencies within the power grid are a frequent cause of power quality problems.

Power Factor and Load Balancing Capabilities

The use of filtering in cases of harmonic distortion can reduce overheating of equipment and nuisance tripping of circuit breakers and fuses. It can also improve power quality contributing to reduced energy costs.

Protect your electrical system

The presence of harmonics in electrical systems can lead to potential damage of equipment, disrupting regular functioning of devices and leading to increased running costs.

Book a consultation

Let's discuss improving your power quality.

Active Harmonic Filters Google Search

The cleaner the grid. The greater the benefits.

The use of filtering in cases of harmonic distortion can reduce overheating of equipment and nuisance tripping of circuit breakers and fuses. It can also improve power quality, contributing to reduced energy costs.


Quality Energy's Multi-function Active Harmonic Filters are designed to reduce harmonic currents up to the fiftieth harmonic (2,500Hz) in accordance to global standards.


Our Active Harmonic Filters feature:

  • compact design
  • simple installation
  • designed to be safe and intuitive
  • extendable modular system



Contact us

Flinders Private Hospital Case Study

Quality Energy were contacted by Flinders Private Hospital to investigate a harmonic pollution issue that was causing critical hospital equipment to shut down.


Quality Energy was requested to come up with a solution to mitigate the existing voltage harmonic levels of 9.35%, to levels between 1-3%. After conducting an in-depth power quality study, we were able to recommend a 400Amp Active Harmonic Filter for this project.


Learn more

Why Quality Energy?

Quality Energy is Power Quality.

Quality Energy has been operating for over three decades. What started out as a father-and-son team contracting to a multi-national organisation in the Power Quality field, Quality Energy now helps some of Australia's most well-known brands and small business improve their power quality and energy efficiency, and reduce energy costs. And we can do this through our global partnerships, national reach and local manufacturing capabilities.

European Technology

We use a high quality Circutor Active Harmonic Filter, and have several systems available to suit your commercial or industrial needs.

Modulated Systems

Our locally assembled modulated systems offer highly flexible,  reliable and customisable harmonic compensation solutions.

What our customers say

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  • Testimonial from Visy Paper

    Visy Paper have partnered with Quality Energy for over 20 years. My experiences with Quality Energy have always been very positive and we don’t hesitate to utilise their services for all Power Quality Audits, Power Factor Correction and Active Harmonic Filter projects nationally.


    Visy Paper

    Learn more
  • Testimonial from Chris James, Kurv Living

    In June 2020, Kurv Living were faced with several power outages due to the quality of the power entering our manufacturing facility. After completing extensive Power Quality diagnostics, Quality Energy determined that we had high harmonic levels that were causing our critical machinery to shut down. Quality Energy then installed a 200Amp Active Harmonic Filter in September of the same year and we haven’t had any issues since.


    Chris James

    Kurv Living

    View case study
  • Testimonial from Rupe Virk, Head of Projects Jalplas

    In early 2020 our site in Thomastown was experiencing power quality issues that was affecting our critical manufacturing equipment. After contacting Quality Energy and having them conduct a Power Quality study, it was determined we required a 200A Active Harmonic Filter to help eliminate our harmonic pollution and protect our entire infostructure. Quality Energy designed, installed and now maintain our Active Harmonic Filter and we have had a clean bill of health since the installation took place.


    Rupe Virk

    Head of Projects Jalplas

    Read about this project
  • Testimonial from Prolux

    Prolux have been turning to Quality Energy for over 5 years to help us better service our major clients. Together both of our businesses have executed on several Solar, Power Factor Correction and Power Quality Audit projects nationally. We would highly recommend using Quality Energy for all of our power quality and energy efficiency requirements.


    Prolux Electrical Contractors

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You see, we’ve been in the energy game for more than 30 years for companies across every industry and are trusted amongst some of the biggest brands in Australia. We work with both channel partners and the market directly across all our energy-efficiency product portfolios.


Our Story So Far...

Quality Energy has a long and proud history dating back over 30 years. Formerly known as Eastern District Electrics, the business was founded by David Stratford, specialising in Power Quality management.


Throughout the years, Eastern District Electrics worked with our customers and channel partners on projects large and small throughout Australia and overseas.


We're a holistic energy management solutions provider, offering not only Power Factor Correction solutions, but a whole suite of demand management and renewable energy solutions. Quality Energy is a Clean Energy Council Approved Solar Retailer and the winner of 2016 Manufacturing and Construction Award by the Gold Coast Business Excellence Awards Committee.


We are driven by energy, technology, challenges and opportunities.


Contact us
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