產品介紹 | SFZ20-260000/220kV 超高壓變壓器

產品概述

SFZ20-260000/220kV 變壓器是我公司為 中國電建貴州水城大撈地項目 量身打造的核心輸電設備。該產品采用先進的設計理念與制造工藝，具備 高可靠性、低損耗、強抗短路能力 等特點，適用于長距離超高壓輸電工程，確保電力網絡的穩定運行。

技術難點與突破

• 超高電壓承載：作為 230kV 級超高壓變壓器，該設備需承受高電壓沖擊，我們采用優化的電場分布設計及絕緣系統，確保長期安全運行。

• 高效散熱系統：針對大功率變壓器發熱量大的特點，采用自然油循環風冷技術（ONAF），確保設備在長期高負荷運行下溫升可控，提高使用壽命。

• 抗短路能力增強：高、低、調壓繞組全部采用 高強度自粘換位導線，通過合理的安匝平衡設計，大幅增強抗短路沖擊能力，減少電網事故風險。

• 低損耗高效率：采用優質硅鋼片和優化的磁路設計，使變壓器鐵損和負載損耗降低，提高能源利用效率，減少運行成本。

• 精密制造與運輸：由于設備總重量超過 220 噸，運輸過程面臨巨大挑戰。我公司制定了專業運輸方案，采用高精度碰撞監測系統確保設備在長途運輸中的穩定性和安全性。

技術規格

核心優勢

• 采用國際領先的變壓器設計標準，確保高安全性與長壽命。

• 具備卓越的抗短路性能，提高電網穩定性。

• 高效冷卻系統，適應惡劣環境運行需求。

• 智能監測系統，提升運行維護便捷性。

Product Introduction | SFZ20-260000/220kV Ultra-High Voltage Transformer

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

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.