Scope of Work
Design, manufacture, testing, and delivery of a 420 MVA, 400 kV main power transformer for one of Serbia’s largest thermal power stations—Kostolac B. The transformer was engineered to support high-voltage grid stability and enable efficient long-distance power transmission from the thermal plant to Serbia’s national grid.
Technical Specifications
- Power Rating: 420 MVA
- Voltage Level: 400 kV
- Type: Main Step-Up Transformer
- Application: Thermal power plant grid connection
- Features:
- High thermal endurance for continuous heavy-duty operation
- Enhanced insulation system to withstand high transient voltages
- On-load tap changer for voltage regulation
- Designed for minimal losses and optimized cooling efficiency
Project Highlights
- Energy Backbone: Supplied a core component to strengthen one of Serbia’s key power plants, contributing directly to national energy resilience.
- High Voltage Complexity: Custom-built transformer designed to interface with Serbia’s 400 kV transmission grid.
- On-Time Delivery: Met tight procurement and engineering timelines for a critical energy infrastructure project.
- Durability Focus: Engineered for long operational life in high-load conditions typical of base-load thermal power generation.
Outcome
The successful delivery of the 420 MVA transformer enabled the Kostolac B Power Plant to meet rising energy demands and support Serbia’s industrial and residential electricity needs. The transformer played a key role in ensuring grid reliability and efficiency in the national transmission system.
