Our railway power supply solutions

Powering remote equipment without compromise.

Transporting electrical power along railway infrastructure requires solutions that are both cost-effective, reliable, and high-performance. AUGIER designs step-up stations and step-down substations capable of meeting the most demanding requirements in terms of safety, robustness, and energy efficiency.

The specific challenges of railway power supply

•Losses due to distance & voltage drop: Over long distances, cable resistance causes significant losses. Equipment must be optimized to reduce cable cross-sections while maintaining the required voltage at the load terminals.
•24/7 energy reliability & availability: Railway infrastructure cannot tolerate service interruptions. Signalling, communications, switch heating, and tunnel lighting must operate continuously, even under extreme conditions (humidity, frost, dust).
•Environmental adaptation: Installations along the tracks, in underground pits or tunnels, require a high level of ingress protection (IP68) and resistance to vibrations, corrosion, and temperature variations.

AUGIER Solutions

Step-up stations & step-down substations:

• Core function: Raise voltage for electrical power transmission over long distances, then step it down close to the loads to minimize losses and enhance safety.
•Modular equipment:Number of substations, power rating, and configuration (cabinet-mounted, underground pit installation) adaptable to site constraints.
• Ease of maintenance: Designed for simplified voltage absence verification, robust equipment, and extended service life.

Powered equipment:

• Railway signalling (signals, beacons, safety circuits)
• Fixed lighting & emergency lighting in tunnels, bridges, and covered passages
• GSM-R communications, onboard or trackside communication networks
• Rainwater pumping stations (drainage, flood prevention)
• Switch heating / de-icing systems
• Power outlets & service installations inside tunnels

Customer benefits

• Reduced costs for power transmission, cabling, and installation
• Greater reliability and lower risk of outages (underground solution)
• Long-term durability of installations, reduced corrective maintenance
• Enhanced brand image, meeting customer expectations (service, safety, etc.)

Completed projects / References

• LGV Bordeaux–Dax: Power supply for remote loads distributed over 50 kilometers of track, while retaining existing cables and tripling the delivered power.
• LGV Morocco: Electrical power supply for multiple remote sites serving signalling and telecommunications systems.
• Dourges multimodal site: Power supply for railway yard lighting and the equipment transfer platform.
• Braus Pass Tunnel: Power supply for communication equipment.

And also:

• Power supply for GPRS networks, including complete step-up / step-down system implementations for the projects: Étampes, Motteville, Sommery, Brin 14 Nord, Baron Tunnel, Cheptainville, Villejust Pivot, Bris-sous-Forges, Le Blanc-Mesnil, Orry-la-Ville, Val-de-Reuil, Chantilly Forest, Coudray-Thelle.
• Power supply for the LGV Rhin–Rhône line, the LGV Est Européenne line, and numerous tunnels.

 

If you have a railway power supply project, contact AUGIER for a tailored study: needs definition, cost estimation, and assessment of the solution’s benefits.

PRODUCTS FOR Railway Infrastructure

Watertight Transformer Modulo

Watertight Transformer Modulo

Transformer Substation PTMI & PTM

Transformer Substation PTMI & PTM

Watertight Tranformer TER

Watertight Tranformer TER

Outdoor Transformer substation PTS

Outdoor Transformer substation PTS

Indoor Transformer substation PTS

Indoor Transformer substation PTS

Transformer Substation PTC Shelter

Transformer Substation PTC Shelter

Dry Type Transformers

Dry Type Transformers

IMPLEMENTED IN Railway Infrastructure

Discover our references around the world using AUGIER technologies.

All references