# Energinet Commissions Revsing 400 kV Substation Expansion with Dual 400 MVA Transformers and 150 Mvar STATCOM

> To reinforce Jutland’s transmission backbone ahead of multi-gigawatt offshore wind integrations from the North Sea and Baltic Pipe gas turbine synchronizations, Danish TSO Energinet has energized the expanded Revsing 400/150 kV Substation, deploying dual 400 MVA autotransformers and a 150 Mvar modular multilevel STATCOM.

- **Publish Date:** 2026-09-20
- **Category:** transmission-substations
- **Reading Time:** 4 min
- **Original Source Citation:** [Energinet Transmission System Newsroom](https://en.energinet.dk/about-our-news/news/revsing-400kv-substation-statcom-autotransformers-energization-september-2026/)
- **Tags:** Energinet, 400 kV, STATCOM, Autotransformers, Denmark, Offshore Wind, Substations
- **Canonical URL:** https://voltformer.com/news/energinet-commissions-revsing-400kv-substation-expansion-statcom-denmark
- **Markdown Source:** https://voltformer.com/news/energinet-commissions-revsing-400kv-substation-expansion-statcom-denmark.md

## Upgrading the Core Jutland 400 kV Switching Junction

Located near Vejen in southern Denmark, Revsing Substation serves as the principal intersection between the Jutland 400 kV north-south transmission backbone and the high-voltage direct current interconnectors to Germany and the Netherlands. The expansion integrates two new low-noise 400/150 kV 400 MVA autotransformers.

The transformers feature sound-dampened exterior enclosures achieving acoustic emission levels below 55 dB(A) at 100 meters, complying with stringent Danish municipal environmental noise standards near rural communities.

## Dynamic Voltage Stability via 150 Mvar Modular STATCOM

Coupled to the 400 kV busbar, the 150 Mvar STATCOM utilizes Modular Multilevel Converter (MMC) technology to inject or absorb reactive power within 15 milliseconds, stabilizing grid voltage during sudden offshore wind generation drops.

The facility features fully digital IEC 61850 substation automation with dual-redundant optical fiber protection loops and integrated online condition monitoring for high-voltage GIS bays.

---
Related: [Power & Energy News Hub](https://voltformer.com/news.md) · [Voltformer Substation & Transformer Catalog](https://voltformer.com/catalog.md)