Overview

The SFZ20-260000/220kV transformer is a core transmission equipment custom-built by our company for the China Power Construction Guizhou Shuicheng Dalaodi Project. With high reliability, low loss, and strong short-circuit resistance, this product is designed for long-distance ultra-high voltage transmission, ensuring grid stability and efficiency.

Technical Challenges & Breakthroughs

Ultra-High Voltage Endurance: As a 230kV transformer, it must withstand extreme voltage stresses. We utilize an optimized electric field distribution and advanced insulation system to ensure long-term safety.

High-Efficiency Cooling: To address significant heat dissipation challenges, the transformer features a natural oil circulation air-cooling system (ONAF), maintaining temperature control under heavy loads for extended service life.

Enhanced Short-Circuit Resistance: The high-voltage, low-voltage, and regulating windings adopt high-strength self-bonding transposed conductors with optimized ampere-turn balance, significantly improving short-circuit resistance and reducing grid failure risks.

Low Loss, High Efficiency: With premium silicon steel cores and an optimized magnetic circuit design, the transformer achieves reduced iron and load losses, improving energy efficiency and lowering operational costs.

Precision Manufacturing & Transport: Weighing over 220 tons, this unit requires specialized transportation planning. A high-precision impact monitoring system ensures stability and safety during long-haul transport.

Technical Specifications

Parameter

Value

Key Advantages

Designed to international transformer standards for maximum safety and longevity.

Exceptional short-circuit resistance enhances grid reliability.

High-efficiency cooling system ensures stable operation in harsh environments.

Intelligent monitoring technology simplifies maintenance and operation.

This product reflects our company’s engineering excellence and commitment to power infrastructure development, contributing to the global energy sector.