Substation Transformers
Substation transformers are oil-immersed distribution or medium power transformers designed for integration into prefabricated or open-air substations. These transformers are commonly used in utility networks, renewable energy plants, industrial complexes, and infrastructure projects to step down medium-voltage power (up to 36 kV) to service-level voltages. TEK Transformatör designs substation transformers in compliance with IEC, IEEE, and utility-specific technical specifications, offering both standard and engineer-to-order (ETO) solutions.
Substation transformers can be delivered as standalone units or integrated into modular transformer kiosks, compact substations, or metal-clad enclosures. Designed for outdoor or containerized installation, they are optimized for compact footprint, safe operation, and long service life under various environmental and loading conditions.
Technical Highlights
- Power Ratings: Up to 25 MVA
- Voltage Levels: Up to 36 kV (primary) / configurable LV side
- Cooling Types: ONAN / ONAF / KNAN, with sealed or conservator tank options
- Vector Groups: Dd0, Yyn0, Yd5, or customer-specified
- Integrated with HV and LV switchgear (RMU, circuit breakers) on request
- Available with anti-condensation heaters, smart sensors, and SCADA-ready interfaces
Typical Applications
- Public utility substations
- Renewable energy step-down units (solar, wind)
- Industrial power distribution hubs
- Commercial and campus substations
- Transportation and metro power systems
Let's Offer the Most Suitable Transformer Solution for Your Project
You can contact us to get more detailed information about Distribution Transformers, receive consultancy services on technical specifications, or request a special offer for your project.