23kV/400V 3500kVA Oil Type Power Transformer | High Efficiency & Reliable Performance

23kV/400V 3500kVA Oil Type Power Transformer | ZTelec China

ZTelec’s 23kV/400V 3500kVA oil-immersed power transformer is engineered for stable and efficient voltage conversion in critical infrastructure and industrial applications. With precise voltage regulation and durable construction, it ensures continuous power supply in heavy manufacturing, renewable energy systems, and grid distribution networks.

Where ZTelec’s 23kV Transformer Shines

Industrial Zones & Heavy Manufacturing: The transformer delivers 400V output from a 23kV input, powering high-demand machinery such as metal processing units, textile lines, and chemical reactors. Its reliable performance supports 24/7 production cycles in energy-intensive industries.

Suburban & Rural Power Grid Upgrades: By connecting directly to 23kV regional grids, this transformer eliminates the need for intermediate 10kV substations. It efficiently supplies 400V power to residential, commercial, and light industrial areas—cutting infrastructure costs and minimizing transmission losses.

Renewable Energy Integration: Ideal for solar parks and wind farms, the transformer seamlessly connects 23kV renewable generation systems to 400V distribution networks. Its low-impedance design stabilizes power flow even under fluctuating energy inputs.

Critical Infrastructure: Trusted in hospitals, data centers, and railway stations, this 23kV transformer provides uninterrupted energy with robust protection against humidity, dust, and temperature variations—ensuring continuous operation for life-critical systems.

Mining & Construction Sites: Built to withstand rugged environments, the transformer supplies reliable 400V power for excavators, cranes, and temporary site facilities, maintaining steady performance even in remote project locations.

ZTelec’s Competitive Advantages for Engineers

Exceptional Energy Efficiency: Incorporating advanced S11-series core technology and high-grade grain-oriented silicon steel, this transformer reduces no-load loss by up to 35% compared to traditional S9 models—significantly lowering long-term operational costs.

Extended Service Life: The fully sealed corrugated oil tank, manufactured using GEORG’s automated production line, isolates the transformer oil from air and moisture. This prevents insulation aging, eliminates oil refilling needs, and ensures a design lifespan exceeding 25 years.

Superior Short-Circuit Resistance: A 3D-optimized winding structure and high-frequency welded joints provide strong mechanical integrity. The transformer can endure short-circuit currents up to 25kA without damage, protecting downstream systems and ensuring grid safety.

Low Maintenance Requirements: The IP54-rated enclosure and hermetically sealed design reduce contamination risk. Annual visual inspections are typically sufficient, making it ideal for remote or unmanned installations.

Global Compliance & Customization: Fully certified to CE, IEEE, and ISO 14001 standards, ZTelec’s transformers meet international performance and environmental requirements. Custom configurations—such as tap changer adjustments, impedance tuning, or enhanced cooling systems—are available upon request to fit specific project conditions.

In summary, ZTelec’s 23kV/400V 3500kVA oil type power transformer combines energy efficiency, long-term durability, and global compliance, making it the preferred choice for modern industrial power systems and energy infrastructure upgrades.

Technical Specifications