2.5-20 MVA 33/11 kV cast coil dry type transformer manufacturer and wholesale supplier for USA, Canada, Russia, Spain

2.5-20 MVA 33/11 kV High Voltage Cast Coil Dry Type Transformer

Primary Voltage: 33KV
Secondary Voltage: 11KV
Power Rating: 2.5–20 MVA
Connection Type: Dyn11/Yyno or others
Transformer Type: Cast Coil Dry Type Transformer
Standards: ANSI/IEEE, CSA/CAN, DOE
Certificate: UL, cUL, CSA, SGS, CE

In 2023, we successfully delivered three 10 MVA high-voltage cast coil dry type transformers to a large industrial park project in Chile. These transformers are designed to operate at a primary voltage of 33KV and a secondary voltage of 11KV, and serve as a core power distribution solution for high-load manufacturing and logistics facilities. The dry-type cast coil design offers superior fire safety and moisture resistance, ensuring safe indoor operation even in humid coastal environments. Built to ANSI/IEEE, CSA, and DOE standards and certified by UL, CE, and CSA, these transformers reflect EverNew’s commitment to international quality and reliability. Their robust performance plays a key role in supporting uninterrupted power for precision machinery and industrial automation systems.

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Description
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Evernew Transformer, a leading dry transformer manufacturer in China, offers a complete line of 2.5 MVA to 20 MVA cast coil dry type transformers, engineered for 33kV/11kV medium-voltage distribution systems. These epoxy resin dry-type transformers provide safe, reliable, and low-maintenance power conversion solutions for industrial, commercial, utility, and renewable energy applications.

With robust cast resin insulation, advanced thermal design, and high dielectric strength, our transformers are built to perform in harsh environments, including coastal, dusty, humid, and high-altitude conditions.

🔧 Technical Specifications

Power Rating: 2.5 MVA – 20 MVA
Primary Voltage: 33kV
Secondary Voltage: 11kV
Insulation Class: F or H, with temperature rise Class B / F
Cooling Methods: AN (Air Natural), AF (Air Forced), optional fan system
Connection Options: Dyn11, Yyn0, or customized as per grid requirements
Frequency: 50Hz / 60Hz
Altitude: Up to 1,000 meters (higher upon request)
Standards: IEC 60076, ANSI/IEEE C57.12, CSA/CAN, DOE
Protection Degree: IP00, IP23, IP44, or custom enclosure
Partial Discharge: ≤ 10 pC
Short-Circuit Withstand: Designed to handle 2.5x rated current
Ambient Temperature: -25°C to +45°C

🛠️ Product Advantages

High Reliability: Coil windings are vacuum cast with epoxy resin, resistant to moisture, chemicals, and pollution.
Safety First: Fire-retardant, self-extinguishing material; no risk of oil leakage or explosion.
Eco-Friendly: Oil-free operation makes it ideal for urban centers and eco-sensitive zones.
Compact Design: Smaller footprint and lighter weight than oil-immersed alternatives.
Energy Efficiency: Low losses and optimized magnetic flux design reduce energy waste.
Low Maintenance: No need for oil checks, leak inspections, or regular replacements.
Long Life Span: Design life of 20+ years with minimal servicing.

📦 Manufacturing & Certifications

Evernew Transformer operates a modern MV transformer factory equipped with state-of-the-art CNC winding, casting, and vacuum drying lines. Our cast resin dry-type transformers are 100% factory-tested and compliant with major international certifications:

UL, cUL, CE, CSA, SGS, ISO9001, ISO14001, RoHS
Custom testing protocols available upon request
Type test and routine test reports provided with shipment

🌍 Global Supply and Customization Services

As a professional dry type transformer supplier, Evernew Transformer serves power utilities, EPC contractors, OEMs, and project developers across the USA, Canada, Germany, France, the UK, Russia, Australia, UAE, Saudi Arabia, South Africa, and Southeast Asia.

We offer:

OEM/ODM support
SKD/CKD transformer kits for local assembly
Custom voltage ratios and connection groups
Special enclosures for marine, mining, or desert applications
Fast delivery (typically 4–8 weeks)
Factory-direct wholesale pricing

Learn More：What is Dry Type Transformer

🔍 Applications

Our 33kV to 11kV cast coil dry type transformers are widely used in:

Power distribution substations
Solar and wind energy plants
Data centers and hospitals
High-rise buildings and shopping malls
Industrial zones and manufacturing hubs
Oil and gas refineries
Tunnel and metro power systems

📞 Request a Quote Now

Looking for a reliable cast resin transformer supplier with competitive pricing and fast lead time? Contact Evernew Transformer today to discuss your project requirements for 2.5–20 MVA 33/11 kV high voltage dry-type transformers. We provide complete technical support, drawings, test reports, and global shipping solutions.