Positive
Project advancing - milestone achieved
Medium Impact
Significant progress or notable issue
A complete review of the Lillgrund electrical system, including the 130 kV export connection and internal 33 kV grid, was carried out in the form of 13 dedicated studies such as cable sizing, load‑flow, short‑circuit, harmonics, grounding, voltage fluctuation, reliability and arc‑fault analyses. Requested by Vattenfall and executed mainly by Siemens after contract award, this comprehensive electrical system study was completed during the construction period and settled the final design of the export and internal grid.