Three electricity companies join forces to fight electrical pollution
Denmark, Hjørring: A shunt reactor at Station Bredkær near Hjørring delivers reactive power to Energinet.
Image source: Dansk Energi
Denmark, Hjørring: A shunt reactor at Station Bredkær near Hjørring delivers reactive power to Energinet.
Thus, Nord Energi Net complies with the applicable limit values n the area in question.
Nord Energi Net, N1 and KONSTANT Net have purchased shunt reactors following a joint EU tender. The reactors must ensure that local 60 kV networks avoid ‘contaminating’ Energinet’s overall network with reactive power. With investments in the million class, electricity network companies solve a challenge that arises when overhead lines are replaced by cables.
A 40 T shunt reactor produced in Dresden and thoroughly tested in Nuremberg has been driven on a block wagon from Germany to Hjørring. Here it is installed on a concrete foundation at Nord Energi Net’s 60/10 kV station Bredkær, which is one of the North Jutland hubs up to Energinet’s 150 kV network.
The new reactor is one of the first at distribution level in Denmark, but a number more are on the way. In total, the electricity grid companies will probably have to install 20-30 reactors.
Together with N1 and Konstant Net, Nord Energi Net has reserved seven reactors in a joint EU bid won by Siemens, which has delivered the first four: one for Nord Energi Net, one for N1 and two for KONSTANT Net.
“Nord Energi Net has wired almost the entire 60 kV network, and cables behave differently than overhead lines. Energinet’s rules require that if we exceed a certain level of reactive power, then we must compensate,” explains Nord Energi Net’s engineer Magnus Lind Hansen.
Source: Dansk Energi
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