500Kva 3 Phase Pad Mounted Transformer 12.87KV To 240V Power Distribution Transformer 7‑Tap Multi-Voltage Flexibility UL/cUL Listed

This 500 kVA transformer is designed with a dead-front configuration and follows a loop feed layout. Crafted by WINLEY ELECTRIC. Its specifications include a high voltage of 12.87 kV in a Delta connection, while the low voltage stands at 240/120V. It adheres to the ASNI/IEEE C57.12.34 Standard.

Main data

Technical drawings

Standard Features

• 60 Hz operation.
• 65°C average winding rise.
• Radial & loop feed arrangements.
• Dead and live front type of HV terminals.
• HV BIL 45 – 150 kV (Dead Front) 200 kV (Live Front).
• LV BIL 30 – 60 kV.
• Three-point latching of low-voltage door.
• High-voltage door, which can be opened only after the low-voltage door is opened.
• Rigid steel partition.
• Transformer tank welded from cover to base.
• Permanent nameplate.
• One-inch NPT pipe cap filling provision.
• ANSI tank ground pads.
• One-inch drain valve and sampler.
• Automatic pressure-relief valve (35 SCFM).
• Tap changer with (2) 2.5% full capacity taps above and below nominal.
• One 10”x18” (or 14”x25”) hand hole in transformer tank cover.
• Painted olive-green color (Munsell 7GY 3.29/1.5).
• Designed, manufactured and tested in accordance
with the latest ANSI standards

Why choose us

WINLEY offers a complete line of liquid-filled three-phase pad-mounted transformers that meet ANSI®/IEEE® standards and have obtained UL/cUL certification. With voltages up to 34.5 kV and ratings up to 5,000 kVA, these transformers suit high-voltage and large-capacity applications like substations and industrial power systems. Their oil-immersed design ensures superior performance and stability in high-load, high-voltage scenarios.

Application

• Digital Currency Mining – Provides stable power for remote mining farms, ensuring efficient operations.
• Data Centers – Converts high-voltage power for stable electricity and backup during outages.
• Renewable Energy – Transmits solar/wind power to the grid and supports battery storage.
• Commercial Buildings – Powers lighting, HVAC, and IT systems with backup for outages.
• Transport Hubs – Ensures electricity for airports, train stations, and ports (lighting, signals, cranes).
• Agriculture – Distributes power for farm equipment, irrigation, and storage, boosting productivity.
• Industry – Reliable power for machines, automation, and cost-efficient production.
• Schools & Hospitals – Supports critical infrastructure, research, and medical equipment

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.