Harmonic Filters

Reliable Power Quality Solutions

Modern facilities depend on clean, stable power. As more equipment such as VFDs, LED lighting, and data servers are added to electrical systems, harmonics become a growing challenge. Left unchecked, harmonics can cause overheating, nuisance trips, and costly downtime.

Harmonic Filters are designed to reduce Total Harmonic Distortion (THD) and improve overall power quality. At Crossman Automation, we provide both Active and Passive Harmonic Filter solutions that ensure your systems run efficiently, safely, and in compliance with IEEE 519 standards.

What Harmonic Filters Do

Harmonic filters work by targeting the unwanted frequencies generated by non-linear loads and either neutralizing them or absorbing them before they impact your electrical network. By reducing distortion, they:

  • Protect motors, transformers, and sensitive equipment

  • Improve energy efficiency

  • Reduce heat and stress on conductors and cables

  • Prevent nuisance trips of protective devices

  • Support compliance with utility and industry requirements

Active Harmonic Filters

Active Harmonic Filters (AHFs) are intelligent devices that constantly monitor your power system and inject equal but opposite currents to cancel out harmonics in real time.

Advantages of Active Filters:

  • Dynamic response to changing load conditions

  • Capable of correcting multiple harmonic orders

  • Compact and flexible installation

  • Ideal for facilities with variable or unpredictable loads

Passive Harmonic Filters

Passive Harmonic Filters (PHFs) use tuned inductors, capacitors, and resistors to reduce harmonics at specific frequencies. They are robust, efficient, and effective when harmonics are stable and predictable.

Advantages of Passive Filters:

  • Reliable and cost-effective

  • High efficiency with consistent load profiles

  • Provide additional benefits like power factor correction

  • Well-suited for dedicated equipment or systems with steady harmonics

 

Why Crossman Automation

  • Industry Expertise: Decades of experience supporting industrial and commercial facilities across Western Canada.

  • Trusted Brands: We carry and support leading products from manufacturers like Danfoss, ensuring reliable and proven performance.

  • Custom Solutions: Every site has different load profiles and compliance needs. Our team works with you to size, select, and install the right harmonic mitigation solution.

  • Full Support: From system analysis to installation and after-sales service, we ensure your power quality goals are met.

Request a Quote

If harmonic distortion is affecting your equipment or power quality, a harmonic filter may be the right solution. Our team is ready to review your system and recommend the best fit.

Call Crossman Automation today or use our online form to request a quote.