Cooper Three Phase Pad Mounted Transformer with DYN1 Vector Group and ONAN Cooling

Three Phase Pad Mounted Transformer Step Up Transformer 12.47kv To 208v Cooper Outdoor Pad Mounted Transformer UL Listed

WINLEY Electrical manufactures three‑phase pad transformers certified to UL/cUL and compliant with ANSI, IEEE, CSA and DOE‑2016 standards. Available specifications include up to 34.5 kV system voltage and up to 5,500 kVA rated power. We have extensive experience in design, production and after‑sales service for public utilities across the United States and Canada.

Main data

Technical drawings

• Safe and Reliable: They use efficient insulation protection and heat dissipation equipment, with a well-designed cable cabinet structure ensuring safety and reliability. They have a strong overload capacity, allowing for 2 times overload for 2 hours and 1.6 times overload for 7 hours without affecting their lifespan.
• Convenient Connections: The use of elbow plugs makes it easy to connect high-voltage incoming cables, allowing for plug-in and plug-out operations under power.
• Strong Defense Capability: They can effectively resist instantaneous voltage peaks, protecting power equipment from damage. They also feature double fuse protection:
• Insertion Fuse (BAY-o-NET): A dual-sensitive fuse (temperature and current) protecting against short-circuit faults on the secondary side.
• Backup Current Limiting Protection Fuse (ELSP): Protects against faults inside the transformer and the high-voltage side.
• Flexible Power Supply: They can be either terminal type or ring network type, allowing one transformer to supply power to another, enhancing power supply distance and reliability.
• Energy Saving and Environmental Protection: Designed with energy efficiency and environmental protection in mind.

Environmental conditions for normal use

• Altitude: not more than 1000 meters;
• Ambient temperature: no higher than +40°C, no lower than -25°C, daily average temperature difference no more than 35°C, annual average temperature difference no more than 20°C;
• The wind speed does not exceed 35m/s;
• There is no explosion hazard in the installation site, no chemical corrosion and severe vibration;
• Cooling method: natural air cooling (AN).

Specification

Production process

WINLEY is located in Xiamen, China. We are specialized in manufacturing all kinds of transformers, voltage stabilizers, voltage regulators, etc. The products are widely used in industrial machinery, new energy, power generation, power supply, coal, metallurgy, petroleum, chemical, construction, port, airport, railway transportation, urban infrastructure, and other areas.

With more than 17 years experience, WINLEY always adhere to the route of "Integrity makes brand,quality wins the market"! We have a professional R&D team, a quality control team, scientific production management system and comprehensive customer service system.

WINLEY holds ISO 9001:2015 quality management system certification, All products have approved by CE certification, we can also apply for UL(Authorized by partner), SASO, SONCAP, etc. according to customer requirements.

WINLEY products are sold to Europe, North & South America, Oceania, Asia and Africa, more than 100 countries and regions in the world are using WINLEY products. Products’ quality and technical service are recognized by all customers around the world, and we have cooperative distributors in some countries.

And we will continue to carry forward the integrity of compliance, scientific and technological innovation, win-win cooperation spirit, provide quality products and comprehensive service to all partners, and work hard for the development of the world’s green electrical power.