33kv/35kv Oil Immersed Power Transformer Distribution Transformer

1. Overview

Our 33kV/35kV oil-immersed transformers are engineered for high-demand utility, mining, and industrial power distribution networks. Built to meet international standards (IEC 60076), these units deliver exceptional operational reliability, optimized energy efficiency, and rugged durability under harsh environmental conditions. We specialize in custom-tailored designs, ensuring perfect electrical compatibility with your specific network configuration.

2. Core Technical Parameters

3. Engineering & Construction Excellence

• Advanced Core Architecture: Constructed with cold-rolled grain-oriented silicon steel featuring an optimized step-lap joint design to minimize no-load losses and operational noise levels.
• High-Conductivity Windings: Precision-engineered multi-layer cylindrical structures utilizing high-conductivity copper (or aluminum) windings, combined with vertical oil ducts to enhance heat dissipation and short-circuit withstand performance.
• Rugged Sealing System: Durable, corrugated radiator-equipped steel tanks with detachable coolers; high-performance conservators isolate the insulating oil from ambient moisture and oxygen, extending the equipment's lifespan.
• Superior Insulation System: Utilizes top-tier mineral insulating oil with high dielectric strength and F-class (155°C) materials to ensure long-term thermal stability under peak loads.

4. Key Performance Advantages

• Ultra-High Energy Efficiency: Fully compliant with IEC 60076 and EU Tier 2 eco-design standards (Efficiency >99%). A proven solution to significantly reduce operational energy costs over the product lifecycle.
• Eco-Friendly & Low Noise: Optimized magnetic circuit design and high-grade materials ensure a quieter, non-toxic, and fully recyclable power solution.
• Enhanced Reliability: Featuring a leak-proof tank design and advanced anti-short-circuit construction. With optional IP65-grade protection, these units are built to withstand extreme dust, moisture, and harsh environmental conditions.
• Adaptable Voltage Regulation: Equipped with high-precision off-circuit or on-load tap changers (OLTC) to ensure stable voltage output across varying load conditions.

5. Versatile Applications

• Urban & Rural Distribution: Reliable step-down solutions for municipal grids, residential developments, and commercial hubs.
• Heavy Industry & Mining: Robust performance for factories, oil & gas fields, and large-scale industrial projects with sustained high-load demands.
• Renewable Energy Integration: Tailor-made for solar farm step-up stations, wind energy, and battery energy storage systems (BESS).
• Critical Infrastructure: Engineered for high-availability environments such as airports, seaports, railway networks, and large public utilities.

6. Global & National Compliance

• International Standards: Fully tested and certified according to IEC 60076 series, IEEE C57.12.00, and ANSI C57.12.90 standards.
• National Quality Standards: Built in full compliance with GB 1094 and GB/T 6451 standards, ensuring robust manufacturing quality, high-grade material usage, and long-term durability in high-load industrial applications.
• Certified Reliability: Our factory processes and product quality systems are strictly managed under ISO 9001, ISO 14001, and OHSAS 18001 certifications, guaranteeing consistent production excellence for every transformer we ship.