Engineering & Consulting

Network Resonance Measurements in Holland

A team of engineers from ENOTRAC, emkamatik, ABB, Stadler and SBB carried out resonance measurements at 25 kV, 50 Hz, on the new Dutch lines HSL Zuid and Betuweroute. A SBB FLIRT EMU was equipped with special software for the purpose of measurements. Using a traction power converter, the network was subjected to currents at various frequencies. Overhead line voltage and primary current were measured and the line admittance was calculated for the 100-12’000 Hz frequency range. It was then used to validate the previously calculated network model. For these measurements, ENOTRAC was responsible for providing and installing the measurement equipment, as well as recording the data with a data acquisition system.

Travelling at 160 km/h on the HSL Zuid. Bridge over the Hollands Diep near Lage Zwaluwezoom
The high voltage-measurement transducer is mounted on the roof of the FLIRTzoom
FLIRT on the Betuweroute near Tielzoom
Measurement table on an entrance platform in FLIRTzoom
The SBB RABe 521 011 (FLIRT) was equipped as a measurement train zoom

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