UL Certification 25 Kva Single Phase Pole Mounted Transformer Power Overhead Distribution Oil Immersed Transformer 12470V To 480V ANSI IEEE 

This 25 KVA single-phase overhead distribution transformer is liquid-filled and pole-mounted for reliable power delivery. It operates at 12,470/7,200 V primary voltage with a 277/480 V secondary output. The transformer features a 5-position external tap changer, class E insulation rated to 120°C, and copper windings with FR-3 non-PCB oil. It is self-cooled (KNAN), has a durable coated steel tank, and weatherproof epoxy finish. Designed to meet DOE 2016 and ANSI/IEEE efficiency standards.

Why choose us

1.The pole-mounted transformers produced by WINLEY have obtained UL/cUL certification, with rated capacities ranging from 10 kVA to 333 kVA. The products meet or even exceed ANSI, IEEE, CSA, IEC60076 and other standards.
2.Through optimized electrical design, our products are safe, stable, and efficient, helping you save operating costs
3.Our products have been exported to North America, Central and South America, Southeast Asia and other markets in large quantities. We have rich experience and can provide comprehensive technical support and services.

Main Data

Drawing

Standard Feature

• Meet DOE Energy Efficiency Standard or exceeds ANSI/IEEE and CSA standards
• Lifting lugs
• Arrester mounting pads
• Cover-mounted high votage porcelain
• Bushing(s) with eyebolt terminal
• Low voltage bushings wtih eyebolt terminals
• Low voltage enutral grounding strap
• ANSI support lugs(hanger brackets) with laser inscribed nameplate on lower bracket
• Polyester insulated cover
• Self-venting and resealing cover assembly
• Core
• Coil
• Centerline core/coil assembly support brackets
• Low voltage leads
• Oil fill plug with cover ground strap
• Tank ground pad

Pole Mounted Transformer Key Craft

1. Magnetic circuit design
The iron core's shape, size, hysteresis, and eddy current loss are important factors to consider. Properly designing the magnetic circuit can lead to efficient energy transmission and reduced loss.

2. Winding design
Factors such as the number of turns, wire material, interlayer insulation, and wiring method should be taken into consideration during the design process. By implementing a well-planned winding design, the transformer can achieve greater load capacity and reliability.

3. Insulation material selection
Choosing the right insulation materials is paramount to ensure safety and longevity. It's essential to opt for insulating materials that offer excellent insulation performance, high-temperature resistance, arc breakdown resistance, and moisture resistance.

4. Vacuum oil filling
Single-phase pole-mounted transformers typically utilize a vacuum oil filling method. This involves treating the transformer chips with a vacuum, injecting insulating oil, eliminating air bubbles, and sealing the transformers. The vacuum oiling process is beneficial as it enhances the insulation performance and thermal stability of the transformer, leading to prolonged service life.

5. Heat treatment
Transformers' mechanical properties and strength can be enhanced through heat treatment. This process alters the material's organizational structure, boosting its hardness and wear resistance while reducing stress and deformation.

Specifications

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.