ADF verringert das Flimmern zu Henrad NV (Comsys AB)

Todays industry constantly faces new challenges. When society expands in Herentals, Belgien, Henrad was faced with the challenge to reduce their flicker emission level in order to not disturb other industries on the public grid

henrad

“Comsys provided the most advanced and
cost efficient solution at the same time!"
– William de Winter, General Operations Manager, Henrad

“We at Laborelec conducted the reference measurements prior to and after the installation – the solution is approved.”
- Michele de Witte, Laborelec

Hintergrund

Henrad is a Belgian radiator manufacturer in the Caradan Group. Die 55000 square meter factory in Herentals, Belgium consists of six production lines that totally can produce about 5000 Heizkörper einem Tag. The production process are presses, Nahtschweißen und Punktschweißen, the nature of the process is very energy demanding and therefore puts great demands on the power grid. This together created large voltage drops in the feeding substation with the result of to high Pst values which would lead to flashing lights when Eandis, the local utility company, would connect other consumers to the same transformer.

Herausfordern

Der lokale Energieversorger gefordert, dass die Pst 95% value must not exceed 0,7. Messwerte während 2009 provided by the well-known Belgian consultancy firm Laborelec showed tops in the Pst equivalent to 1,6. The task was very challenging since it’s a rapidly fluctuating load and also the many different load patterns that could occur since its very high number of welding machines.

Die wichtigsten Vorteile | Welding – Flimmern:

  • Pst reduziert von 1.6 zu 0.63
  • Only solution with desired flicker mitigation performance without integration with welding lines – easier to instal
  • Fully autonomous solution – will work with future production line upgrades
  • Integrated with existing passive compensation system

Flicker-Ebene vor Entschädigung
henrad before sm
Flicker-Ebene nach der Kompensation
henrad after sm

Lösung -
the ADF P300 Active Filter system

Henrad chose to invest in the ADF P300 Active Filter System, a well proven solution. The market leading response time was a necessity for the customer to reach the values that the utility company demanded. The system totally consists of six P300 units, so dass es insgesamt 2,1 MVAR Dauerleistung für die Spannungsabfälle zu kompensieren.

Folge, after installing the ADF Active Harmonic Filters

After installing the ADF Active Harmonic Filters Henrad has managed to keep their Pst value below 0,63 regardless of how many welding lines that are running. The reference values has been measured by Laborelec and approved by Eandis. Als Nebeneffekt des abgesenkten Flickerwert Henrad has also seen stabilized production environment.
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