This VPI dry type transformer is designed for medium voltage step-down applications. Manufactured by Winley Electric, it features Class H (180°C) insulation, vacuum pressure impregnated windings for enhanced reliability, and complies with ANSI/IEEE, DOE 2016, and NEMA standards. UL/cUL certified (file E531446).

Key Selling Points

• Class H 180°C Insulation: Withstands high thermal stress, extending transformer life in demanding environments (source fact: available image caption states "Class H 180℃").
• Vacuum Pressure Impregnation: Fills all voids in windings, reducing partial discharge and improving dielectric strength (source fact: product model SG includes VPI variants per company profile).
• UL/cUL Listed: Certified under file E531446 for dry type general transformers, ensuring compliance with North American safety standards (source fact: UL cert E531446).
• DOE 2016 Efficiency: Meets U.S. Department of Energy efficiency requirements for distribution transformers (source fact: available image caption mentions DOE).
• Compact Footprint: Space-saving design for indoor or outdoor installations (source fact: company profile highlights compact design).

Technical Specifications

Models and Options

Available in capacities from 10 kVA to 30 MVA, with primary voltages up to 34.5 kV. Custom secondary voltages, enclosure types (NEMA 1, 3R, 4), and cooling systems (AA/FA) available.

Materials and Structure

Core: cold-rolled grain-oriented silicon steel. Windings: copper or aluminum (as specified). Insulation: vacuum pressure impregnated with Class H materials. Enclosure: heavy-gauge steel with corrosion-resistant finish.

Applications

Medium voltage power distribution in industrial facilities, commercial buildings, data centers, and renewable energy projects. Suitable for indoor or outdoor installations.

Customization

Winley Electric offers custom designs per customer specifications: voltage taps, special enclosures, additional surge protection, monitoring ports, and more. Contact sales for details.

FAQ

What is the lead time?

Typical lead time is 4-8 weeks depending on capacity and complexity.

Is this transformer suitable for outdoor use?

Yes, with NEMA 3R enclosure it is weatherproof.

What certifications are included?

Can I get a custom voltage?

Yes, we can design for any primary/secondary voltage up to 34.5 kV.

What is the warranty?

2-year free maintenance service.

Inquiry Information

Contact Mr. Steven: Email steven@winley-electric.com, WhatsApp +86-18650108051. MOQ: 1 set. Payment: T/T. Delivery: FOB/CIF.