Narrow magnetic field high-voltage pylon tested successfully

On November 23 KEMA successfully concluded the Wintrack Project on behalf of TenneT.

Wintrack is a new type of high-voltage pylon, which is not only slimmer than a conventional lattice pylon, but also has a narrower magnetic field. The narrow field is of particular importance, because it means buildings can be sited closer to the high-voltage line.

On the open test area beside the new High-Voltage Lab, KEMA conducted the following tests:

- Audible noise tests

-Radio Influence Voltage ( RIV) tests

-Coronatests (to establish whether and where discharge into the air is occurring)

-Short-circuit tests, in which more than 100,000 amps was routed along the conductors and the conductor suspension gear was tested

A two-phase test set-up was used, with the phases at an angle of 120 degrees. This approach was adopted with a view to simulating field conditions as closely as possible and verifying that the compact line design behaved as previously modeled by KEMA.

TenneT hopes to be able to use the new-design pylons next year on the southern section of Randstad 380.