HARMONIC FILTERS

As an independent supplier, we prioritise your needs above all else, selecting the best devices to suit your specific requirements. Offering a complete service, we can commission the equipment supplied and perform suitable PQ studies to validate performance of the equipment.

CHOOSING THE RIGHT FILTER

Through comprehensive power system studies such as load flow analysis, harmonic analysis, PQ surveys, and site surveys, we can design a custom solution that enhances your network’s performance. Our expertise guarantees that each component is handpicked to meet the specific requirements of your site. As an independent supplier we will analyse what is available in the market and select the best possible solution to meet your requirements and your budget.

Safeguard your electrical systems, enhance efficiency, and elevate performance by eliminating undesired harmonics.

Seamlessly integrating with PME and Power Scada, ensure compatibility and effortless installation, optimising energy efficiency with advanced control algorithms.

PASSIVE HARMONIC FILTERS

Passive harmonics filters are the more economical solution and can be used in a variety of capacities and voltages. These filters utilise components like inductors, capacitors and resistors to reduce, or mitigate, harmonics to tolerable levels as defined by IEEE-519. Passive Harmonic Filters have a lower physical and financial footprint, they also have guaranteed stability and little to no power consumption.

Main Features

The industry standard for 6-pulse rectifier and motor drives
Filters for diode rectifier without DC-link choke and thyristor rectifier
Best-in-class partial load performance
Most compact design
Plug and play, ready to use

ACTIVE HARMONIC FILTERS

Active filters are the more permanent flexible solution. These filters actively monitor the system and use a set of transistors and capacitors to filter the current waveform by injecting inverse currents to cancel out the undesired harmonic components. These filters have a higher physical and financial footprint compared to passive filters.

Main Features

Compact active harmonic filter for 3-phase loads with and without neutral wire
<5% THDi achievable even on most complex mixed loads and changing load profiles
New modular design with intelligent system approach offering tailored solutions for different applications and customers
Extended temperature range of modules up to 50°C
Ultra-fast and dynamic reactive power compensation
Load balancing and unloading of neutral wires
Compliance with IEEE 519, EN 61000-3-12 and other power quality standards

FEATURED CASE STUDY
Glanbia – Harmonics Mitigation

Due to high quantity of variable speed drives installed across the network for energy efficiency purposes, an elevated level of harmonic currents and voltage was being constantly recorded throughout the plant. It was identified very early that those abnormal harmonic levels will have a negative impact on the performance of the facility. A full evaluation was required to ensure that the electrical distribution network will function as required and could reliably support the new milk processing production equipment.

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“"This project was a new build, yet this did not prevent the harmonic issues from occurring. Our extensive power quality and harmonic survey of the electrical distribution network identified a number of issues. Using this information we could then select, supply and commission active harmonic filters needed to correct the problems."”
Barry NicholsonElectrical Engineer