中国电建贵州水城大捞地项目 SFZ20-260000/220kv 变压器

产品介绍 | SFZ20-260000/220kV 超高压变压器

产品概述

SFZ20-260000/220kV 变压器是我公司为 中国电建贵州水城大捞地项目 量身打造的核心输电设备。该产品采用先进的设计理念与制造工艺，具备 高可靠性、低损耗、强抗短路能力 等特点，适用于长距离超高压输电工程，确保电力网络的稳定运行。

技术难点与突破

• 超高电压承载：作为 230kV 级超高压变压器，该设备需承受高电压冲击，我们采用优化的电场分布设计及绝缘系统，确保长期安全运行。

• 高效散热系统：针对大功率变压器发热量大的特点，采用自然油循环风冷技术（ONAF），确保设备在长期高负荷运行下温升可控，提高使用寿命。

• 抗短路能力增强：高、低、调压绕组全部采用 高强度自粘换位导线，通过合理的安匝平衡设计，大幅增强抗短路冲击能力，减少电网事故风险。

• 低损耗高效率：采用优质硅钢片和优化的磁路设计，使变压器铁损和负载损耗降低，提高能源利用效率，减少运行成本。

• 精密制造与运输：由于设备总重量超过 220 吨，运输过程面临巨大挑战。我公司制定了专业运输方案，采用高精度碰撞监测系统确保设备在长途运输中的稳定性和安全性。

技术规格

核心优势

• 采用国际领先的变压器设计标准，确保高安全性与长寿命。

• 具备卓越的抗短路性能，提高电网稳定性。

• 高效冷却系统，适应恶劣环境运行需求。

• 智能监测系统，提升运行维护便捷性。

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.