E.ON Sweden required a solution for expanding the local distribution network (connection points up to 315 kVA) in order to comply with new environmental requirements, using sulfur hexafluoride (SF6)-free technology.
E.ON Sweden required a solution for expanding the local distribution network (connection points up to 315 kVA) in order to comply with new environmental requirements, using sulfur hexafluoride (SF6)-free technology.
Location:
Timeline:
Client:
Scope of work:
Development, production, and delivery of a compact substation (HEKA M) with SF6-free medium-voltage equipment
Technical Specification:
Meeting environmental requirements in a space-constrained environment
Since environmentally friendly medium-voltage switchgear (RMU) is typically larger than traditional equipment, a solution was needed that would keep the external dimensions of the substation compact.
To build compliant connection points within a reasonable timeframe and cost, an entirely new design approach had to be developed.
A custom design for spatial optimisation
Based on the existing model, we designed a new HEKA compact substation in an M configuration. The engineering focus was on maximising internal space utilisation to accommodate an SF6-free RMU, transformer, and low-voltage system within a single enclosure.
We carried out full-scale internal arc testing to ensure compliance with safety standards. In addition, we were responsible for the logistics and coordinated components supplied by the client.
Sustainable grid expansion with minimal administrative burden
E.ON received a ready-to-use and certified substation solution that meets the new environmental standards. Because we handled both logistics and component integration, the client saved significant time and was able to focus on grid operations rather than project management.
The new substation supports sustainable expansion of the distribution network while maintaining high operational reliability.
