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35KV 5000KVA Dry Type Transformer

The 5000 kVA Dry Transformer is engineered to modernize 35 kV substations, as demonstrated at the CHE Hydroelectric Power Plant. This robust three-phase unit features an oil-free, air-cooled design with epoxy-impregnated windings, delivering maintenance-free, durable performance for 0.4 kV AC services at 50 Hz. Built without a protective casing, it offers superior efficiency, enhanced safety, and precise voltage control—ideal for demanding industrial and urban power applications.

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Product Accessories

Elevate the efficiency and reliability of your 35kV 5000kVA dry type transformer with our exclusive lineup of high-precision accessories. Each component is meticulously engineered to streamline operation, reinforce safety protocols, and enable seamless integration within your power distribution network.

Standard Accessories:

Bidirectional Trolley
Featuring omni-directional wheels with an effective locking system, this trolley ensures effortless maneuverability and stable positioning throughout installation and maintenance activities.

Temperature Sensors
Equipped with a minimum of three advanced PT100 sensors, these devices continuously monitor winding temperatures, providing real-time insights to prevent overheating and maintain system performance.

Temperature Control Unit
Seamlessly integrated into the transformer's protective and monitoring framework, this unit delivers precise temperature management, thereby enhancing overall operational reliability.

Lifting Lugs
Expertly designed lifting points simplify handling and transport, ensuring safe and efficient movement during installation and routine servicing.

Neutral Terminal
An easily accessible neutral terminal on the low-voltage side allows for simple grounding procedures, further bolstering system safety and integrity.

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Product Specifications

Rated Voltage

35KV

Transformer Capacity

5000KVA（5MVA）

Phase System

Three-phase operation

Standards Compliance

Conforms to IEC 60076, ANSI, and IEEE standards

Cooling Mechanism

Employs passive air circulation via natural convection, effectively dissipating heat without the need for supplementary cooling systems while ensuring optimal thermal balance.

Insulation System

Incorporates a proprietary formulation of epoxy resin blended with fine quartz particles, offering outstanding resistance to moisture and superior fire protection for truly maintenance-free performance.

Core Construction

Fabricated from advanced cold-rolled silicon steel with enhanced magnetic properties, this design minimizes energy wastage and significantly boosts overall operational efficiency.

Winding Design

Utilizes high-quality copper windings with epoxy insulation, engineered for exceptional mechanical resilience to withstand short-circuit conditions and ensure long-term reliability.

Insulation Class

Outfitted with Class F insulation materials, the transformer is built to operate continuously at elevated temperatures up to 155°C.

Maximum Winding Temperature Rise

Optimized for peak performance, the transformer limits the average winding temperature increase to no more than 105°C above ambient levels during full-load operation.

Product Applications

Economy is more affordable

Ideal for compact city grids where fire safety and space efficiency are critical.

Urban Substation Upgrades
Supplies stable, maintenance-free power for heavy machinery and process automation.

Industrial Manufacturing Facilities
Powers high-rise office buildings and shopping complexes with low-noise operation.

Commercial Infrastructure
Supports hospitals, data centers, and educational campuses requiring dependable, safe power delivery.

Critical Institutional Networks

Product Advantages

Enhanced Safety

Oil-free design eliminates leakage and fire hazards, ensuring a secure installation.

Superior Efficiency

Low-loss construction minimizes energy consumption and reduces operational costs.

Long-Term Reliability

Robust build and advanced cooling deliver extended service life with minimal maintenance.

WellDone Power Transformer Plan Drawing

FAQ

What range of transformer products do you offer and which standards do they meet?

We manufacture a diverse array of transformers including Oil-Immersed Distribution Transformers, Dry Type Transformers, Power Transformers, Three Phase Pad Mounted Transformers, Single Phase Pad Mounted Transformers, Substation Transformers, and Pole Mounted Transformers. Our technical team, with nearly 20 years of industry experience, ensures that our designs comply with international standards such as ANSI, IEEE, DOE, CSA, AS, AZS, GOST, IEC, and more. Additionally, many of our products have obtained UL, cUL, and CSA certifications, affirming their safety and performance in global markets.
How do you ensure the quality and reliability of your transformers?

Our transformers are produced under a rigorous quality management system covering every stage from material selection to final testing. Each product comes with a minimum 24-month warranty, ensuring long-term safety and reliability. This commitment to quality has earned the trust of global customers and leading industry players.
What are your production lead times, customization options, and global market reach?

For standard models, our production lead time is typically 10 to 25 days, and we offer flexible OEM/ODM services for customized projects. We also tailor packaging solutions to meet specific customer requirements. Our transformers are exported worldwide—including North America, Europe, South America, Australia, Asia, and Africa—with successful partnerships involving renowned companies. For more details or personalized support, please contact us via email or WhatsApp.