Traction transformers are essential for electric railway systems, including high-speed trains, conventional trains, light rails, metros, and trams. Also called train transformers, they help convert grid voltage into the voltage that trains need to run while minimising wastage during transmission.
Railway transformers do more than step voltage up or down—they ensure the entire power system operates reliably. As rail infrastructure becomes more interconnected and high-capacity, transformer systems must meet stricter standards.
Railway trackside transformers are used in the railway industry to supply power to rail network infrastructure for rolling stock and to feed power to applications and systems at the safest level: Railway networks, metro power systems, tram systems, airport passenger transportation on rail, and any other power network used to feed power to rolling stock.
Varelen has the broadest portfolio of dry-type and liquid-filled transformers, covering all rail infrastructure applications with a global footprint.
Transformers designed for you
1.Enable suitable short circuits to withstand capability
2.Warrant specific and extreme overload working conditions
3.Ensure maximum reliability for continuous operations
4. Improve train and power infrastructure efficiency
5 . Special materials and solutions to increase environmental safety, reduce fire risk, and protect against vandalism
Varelen stands as a trusted supplier to the world’s top metro and rail integrators, EPCs, and power infrastructure contractors. As a global one-stop component provider, Varelen's transformers support both new construction and system upgrades worldwide.
Every railway transformer is designed to match the unique operational conditions of the network. Varelen’s design principles include:
Withstanding repeated short-circuit events.
Operating reliably under thermal overload.
Improving energy transfer and system efficiency.
Incorporating fire-resistant and anti-vandal materials.
We go beyond one-size-fits-all designs. Our engineers create transformer solutions based on your voltage requirements, insulation class, power rating, and physical constraints.
Sustainability in transport isn’t just about switching to electricity—it’s about using electricity more efficiently. Varelen transformers contribute by:
Reducing no-load and load losses
Enabling grid-tied regenerative braking
Supporting renewable-fed traction substations
Preventing fault escalation with fast fault detection
Our transformers meet stringent environmental and fire resistance standards, reducing ecological impact across their lifecycle.
Rail systems often pass through urban, remote, and industrial zones. Varelen’s designs include protective measures such as:
Varnish-coated windings for moisture resistance
Anti-graffiti coatings and anti-theft fixtures
Hermetically sealed units for oil containment
Thermal sensors to prevent overheating and fire risk
Varelen’s transformers can make rail networks worldwide,making them faster, stronger, and more sustainable.
