Reliable 220kV VV Traction Transformer for Railway Electrification Systems

Leading traction power: 220kV VV connected to single-phase traction transformer

On the main artery of modern electrified railways, stable and efficient power supply is the cornerstone of safe and high-speed train operation. Our 220kV VV single-phase traction transformer is a cutting-edge power equipment designed specifically for this core requirement. It is directly connected to the national high-voltage power grid, providing pure and reliable single-phase power for the railway traction power supply system.

Core technological advantage: VV connection, a robust choice

This product adopts the classic and mature VV connection method. This structure cleverly combines two single-phase transformer units internally, allowing them to directly extract two single-phase loads from a three-phase high-voltage power grid. Compared to other wiring methods, VV connected transformers have significant advantages such as compact structure, high material utilization, low operating losses, and easy maintenance. It not only effectively balances the load of the three-phase power grid and reduces the negative sequence impact on the public network, but also becomes the preferred main transformer solution for electrified railways, especially heavy-duty and high-speed railway traction substations, with its inherent high reliability and economy.

Excellent performance to meet demanding challenges

We are well aware of the strict requirements for railway traction power supply. Therefore, this 220kV traction transformer is designed and manufactured to the highest standards:

• High reliability: Using high-quality low loss silicon steel sheets and advanced winding structures, ensuring stable operation even under frequent load fluctuations and short-circuit impacts.
• Efficient and energy-saving: Optimized magnetic and circuit design significantly reduces no-load and load losses, resulting in lower operating costs throughout the entire lifecycle.
• Strong short-circuit resistance: The winding has undergone strict dynamic and thermal stability calculations and reinforcement processes, and has excellent short-circuit withstand capability.
• Environmentally friendly and low-noise: Emphasize the use of environmentally friendly materials and adopt multiple noise reduction technologies, resulting in low operating noise and environmental friendliness.
• Intelligent monitoring: It can integrate an intelligent online monitoring system to monitor key parameters such as oil temperature, oil level, gas, and load in real time, achieving status warning and intelligent operation and maintenance.

Application field

This product is widely used in:
High speed railway traction substation
Heavy duty railway traction substation
Main substation of urban rail transit (intercity railway)
Electrification and expansion of existing railway lines

Choosing our 220kV VV single-phase traction transformer is a reliable commitment to safeguarding modern rail transit. We are committed to providing customers with full lifecycle technical support and services, jointly promoting the vigorous development of China and even the world’s rail transit industry.