Substantial savings at a printing press in Northern Ireland

Challenges in the customer’s printing press

At the Belfast Telegraph, large UPS feeding printing presses, and IT- and newsroom offices were suffering from non-linear loads that created voltage harmonic distortions as high as 8.6 %. Distortions this high cannot be tolerated as they can harm electrical equipment in a number of ways.

As the facility was risking a UPS failure, the customer decided to purchase a new UPS. The supplier, however, could not guarantee the future operation of the UPS with such elevated levels of voltage distortion. Nuisance tripping was a permanent threat to vital data in the IT- and newsroom offices unprotected against harmonic distortions.

Our Merus® Solution

Merus Power supplied the customer with a low voltage Merus® A-series Active Harmonic Filter through Philip J Alcorn & Co, the company’s distribution partner in Northern Ireland. Fast response and selective harmonic cancellation were the key product features and criteria for the solution.

A Merus® Active Filter was installed parallel to the loads. Merus® Active Filters are configurable to meet various customer requirements. Thanks to the modern touch screen human-machine-interface (HMI) configuration, it is simple and just a few clicks away.

Results and customer benefits

The effective and fast-responding Merus® A-series Active Harmonic Filter ensures that the Belfast Telegraph facility is now running smoothly. Harmonic distortions were brought down significantly and are now well below the requirements of the G5/4 power quality standard.

Threat to important data was deterred by the installation of a Merus® A-series Active Harmonic Filter. Harmonic mitigation maximized the UPS service life and resulted in smooth operation.

Segment / Application

Printing industry, printing machines


Northern Ireland

Power quality issue

  • High voltage harmonic distortion

Merus® Solution

Customer Benefits

  • Smooth plant operation
  • Longer equipment service life
  • Optimized plant operating costs
  • No harmonic distortions or load unbalance

Do you have any questions?

Please contact one of our salespeople with questions and inquiries.

Markus Ovaskainen


+358 40 539 2145

Riku Kalliomaa

Head of Sales,
Regions & Channels

+358 50 3323 020

Jaakko Poutamo

Sales Manager,
Energy Storage, Europe

+358 50 918 0012

Mikko Zavertkin

Sales Manager,
Key Accounts & OEMs

+358 40 5908 858

Viktoria Mansikkala

Sales Manager,
Baltics & Eastern and Southern Europe

+358 44 9 735 737

Juhani Jaatinen

Senior Sales Manager,
DACH, Benelux, France

+49 160 762 4909 (DE)

Pedro Esteban


+65 9155 4225

Venkatesh Ramachandra

Regional Sales Manager,
Middle East

+971 50 55 38 465
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