Harmonic Mitigation Solutions

Minimise electrical disturbances and protect your infrastructure with tailored harmonic mitigation solutions.

Clean Power for Reliable Performance

Harmonics are a hidden threat to electrical systems—causing overheating, equipment failure and interference that can disrupt operations and reduce efficiency. As non-linear loads such as variable speed drives and switch-mode power supplies become more common, managing harmonics is essential to maintaining power quality and protecting infrastructure.

CSE W Arthur Fisher delivers tailored harmonic mitigation solutions that restore waveform integrity, reduce energy waste and support compliance with power quality standards. Our systems are designed to suit a wide range of industrial, commercial and infrastructure environments, helping operators maintain safe, efficient and reliable operations.

Partnering with Mirus International, a global leader in power quality technologies, we provide advanced filtering solutions backed by deep technical expertise and full lifecycle support.

Applications

Data Centres

Protect sensitive IT infrastructure from harmonic distortion that can affect performance, increase cooling demands and shorten equipment lifespan.

    Wastewater Treatment Plants

    Ensure reliable operation of pumps, motors and control systems by reducing harmonic interference and improving system stability.

    Renewable Energy Systems

    Support grid compliance and system efficiency by mitigating harmonics introduced by inverters and other non-linear components.

      Mining and Industrial Facilities

      Reduce wear and tear on motors and transformers, prevent misoperation of protective devices and improve overall system reliability.

      Commercial Buildings

      Minimise the impact of HVAC systems and other equipment on communications infrastructure and building management systems.

      Harmonic mitigation solution in place at a New Zealand wastwater treatment plant to reliable operation of pumps, motors and control systems

      Active Harmonic Filters

      Active harmonic filters work by injecting counteracting currents to cancel out unwanted harmonic components. These dynamic systems continuously monitor and respond to changes in load conditions, making them ideal for environments with variable or unpredictable power demands.

      Benefits:

      • Real-time harmonic cancellation
      • Improved equipment lifespan and system reliability
      • Enhanced energy efficiency and reduced operational costs
      • Compliance with IEEE 519 and other power quality standards
      Cement industrial facility with a harmonic mitigration solution designed to reduce wear and tear on motors

      Compact Hybrid Power Quality System

      The Elspec PQ-Hybrid is a compact, all-in-one power quality system designed to correct harmonic distortion and dynamic reactive power in real time. Using ultra-fast thyristor-based switching, it delivers immediate VAR compensation while its integrated Active Harmonic Filter eliminates harmonics at the source.

      Operating also in SVG mode, the PQ-Hybrid ensures smooth, stepless compensation and stable, distortion-free power—even under rapidly changing load conditions.

      Your Partner in Power Quality

      CSE W Arthur Fisher delivers harmonic mitigation solutions across a range of industries and applications. Our experienced team of engineers and technical specialists offers comprehensive support across the full project lifecycle—from initial design and procurement through to commissioning, maintenance and long-term optimisation.

      We take a collaborative approach, working closely with customers to understand their operational requirements and deliver solutions that improve safety, reliability and performance. With access to genuine parts, deep technical expertise and a commitment to ongoing support, we help you build and maintain infrastructure that’s safe, efficient and ready for the future.