2550kVA Three Phase Pad Mounted Transformer Radial Feed 12.87KV To 480V ANSI C57

Product Specification

2550kVA Three Phase Pad Mounted Transformer Radial Feed 12.87KV To 480V ANSI C57 Standards UL Listed

This 2550 kVA three-phase pad-mounted step-down transformer is designed for radial feed distribution networks, widely applied in commercial, industrial and outdoor utility power supply projects. Built in compliance with ANSI C57.12.34 standard, it adopts ONAN cooling, aluminum windings and NEMA 3R enclosure, with complete standard accessories and stable electrical performance. As a certified manufacturer, Winley Electric holds UL certification, guaranteeing full safety compliance and reliable operation for North American market applications.

As a professional manufacturer with advanced production lines, Winley Electric boasts strong mass production capacity, enabling us to deliver high-quality transformers in large quantities while ensuring consistent product performance and on-time delivery. Our standardized production processes, strict quality control systems, and mature supply chain management allow us to meet the bulk order needs of global clients, reducing lead times and providing cost-effective solutions without compromising quality.

Main data

The transformer supports both radial and loop feed arrangements, with HV terminals available in dead and live front types. The HV BIL ranges from 45 – 150 kV for dead front and 200 kV for live front, while the LV BIL is 30 – 60 kV, fully meeting the insulation and voltage resistance requirements of different application scenarios. The control cabinet is divided into a high-voltage room and a low-voltage room, separated by a rigid steel partition for clear functional division and enhanced safety. It is equipped with a three-point latching system for the low-voltage door, and the high-voltage door can only be opened after the low-voltage door is opened, effectively ensuring operational safety.

Technical drawings

1)The transformer part and the control cabinet part of the United States variation, of which the transformer part is a fully sealed structure, and the insulating oil can be two types of high ignition point oil or ordinary oil.
2)The control cabinet is divided into a high-voltage room and a low-voltage room.
3)The high-voltage room is equipped with: high-voltage cable plug, lightning arrester, load switch operating handle, non-excitation tap switch handle, plug-in fuse, pressure release valve, thermometer, pressure gauge, oil Position gauges, oil filling plugs, oil drain valves, etc., load switches, off-excitation tap changers, plug-in fuses, etc. are all immersed in transformer oil together with the transformer core. The high-voltage cable and the transformer are connected by elbow cable connectors.
4)The low-voltage side can be installed with air circuit breakers, current transformers, as well as electric energy meters, ammeters and voltmeters, and output circuits and capacitance compensation devices can be configured according to user needs.

Production process

Winley Electric’s three-phase pad-mounted transformer stands out for its reliable performance, standardized production, and customer-centric design. Backed by our strong mass production capabilities and strict quality assurance, we are committed to providing durable, efficient, and cost-effective power distribution solutions to support your projects.

Specification

Production process

FAQ

1. Q: Can I have a sample order?

A: Yes, we welcome sample order to test and check quality.

2. Q: What is the lead time?

A: Mass production time 15-25 days.

3. Q: How long is the warranty?

A: 24 monthes from B/L. If there are any accessory problems,just provide the photos of damaged accessory,then we will provide free service. According to the number of products,we will provide easily damaged accessories for free. we also can provide technical support if you need.

4. Q: Is OEM/ODM available?

A: Yes,it is! We are manufacturer with our own R&D team, we can customize products according to customer's drawing or requirements.

Customized services:

a. Customized color and special function.

b. Customized box.

c. Print customer's logo.

d. Your other ideas about product, we can help you design and put them into production. The above customized services must be confirmed before production.

5. Q: How to control the products quality?

A: Our company owns the core technology ,all kinds of products hold CE certificate. We have professional engineers. Workers are strictly required to make products according to the drawings. Each process has technical instructors.The QC supervisors will regularly inspect the production. We will do products performance tests during production, and comprehensive quality tests when the products is completed.