25 kVA Single Phase Pole Mounted Overhead Distribution Transformer 7.2kV / 12.47kV / 13.8kV, 120/240V

Reliable, Cost-Effective Power Distribution Solution for Overhead Networks

The 25 kVA Single Phase Pole Mounted Overhead Distribution Transformer is one of the most widely used distribution transformers in modern electrical grids. Designed for overhead power distribution systems, this transformer steps down medium voltage electricity to standard low voltage levels, ensuring safe, stable, and efficient power delivery to end users.

With primary voltage options of 7.2kV, 12.47kV, and 13.8kV and a secondary voltage of 120/240V, this transformer is ideal for residential areas, rural electrification projects, small commercial facilities, agricultural applications, and public infrastructure. Its compact pole-mounted design makes it especially suitable for overhead distribution lines where space efficiency, durability, and long service life are critical.

This model is extensively used and exported to the United States, Canada, Guyana, Mexico, Argentina, Brazil, Costa Rica, South Africa, and many other regions worldwide, making it a proven and trusted solution for global power distribution needs.

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Product Overview

The 25 kVA single phase pole mounted overhead distribution transformer is an oil-immersed transformer designed for outdoor installation on utility poles. It is engineered to operate reliably under varying environmental conditions, including high temperatures, humidity, wind, and rain.

This transformer offers an excellent balance between performance, durability, and cost efficiency. It is particularly popular among power utilities, EPC contractors, electrical distributors, and infrastructure developers who require a standardized yet customizable distribution transformer solution.

Key advantages include:

• Proven design for overhead distribution networks

• Multiple primary voltage options

• Standard 120/240V secondary output

• High efficiency and low losses

• Minimal maintenance requirements

• Long operational lifespan

• Compliance with international standards

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Technical Specifications

Parameter	Specification
Rated Power	25 kVA
Phase	Single Phase
Installation Type	Pole Mounted, Overhead
Primary Voltage Options	7.2kV / 12.47kV / 13.8kV
Secondary Voltage	120/240V
Frequency	50Hz / 60Hz
Cooling Method	Oil Immersed, ONAN
Insulating Oil	High-grade mineral oil
Standards	ANSI / IEEE / IEC
Certifications	CE, UL, CSA (available)

How a 25 kVA Pole Mounted Transformer Works

In an overhead distribution system, electricity is transmitted at medium voltage levels to reduce power losses over long distances. The 25 kVA single phase pole mounted transformer is installed near the point of consumption, where it reduces the voltage to a safe and usable level.

The transformer receives medium voltage electricity (7.2kV, 12.47kV, or 13.8kV) through its primary winding and delivers low voltage electricity (120/240V) through its secondary winding. This ensures consistent power delivery while protecting downstream electrical equipment and users.

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Typical Applications

This transformer is widely used in a variety of applications, including:

• Residential power distribution

• Rural electrification projects

• Small commercial buildings

• Agricultural facilities and irrigation systems

• Street lighting and public utilities

• Remote and off-grid power networks

Because of its reliability and flexibility, the 25 kVA single phase transformer is often considered a standard unit in overhead distribution systems.

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25 kVA Single Phase Transformer Amps Explained

Many buyers search for “25 kVA single phase transformer amps” to understand current ratings and load capacity.

Based on standard calculations:

• At 240V secondary voltage:
  25,000 VA ÷ 240V ≈ 104 Amps

• At 120V secondary voltage:
  25,000 VA ÷ 120V ≈ 208 Amps

These current values make the transformer suitable for supplying multiple residential loads, lighting circuits, and small commercial equipment without compromising stability or safety.

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25 kVA Single Phase Transformer Load Capacity

The 25 kVA single phase transformer load capacity depends on operating conditions, load type, and ambient temperature. While the transformer is rated at 25 kVA, best industry practice recommends operating at 80–90% of rated capacity for continuous loads.

Operating within this range:

• Improves energy efficiency

• Reduces thermal stress

• Extends transformer lifespan

• Minimizes maintenance requirements

This makes the transformer ideal for long-term installations where reliability is essential.

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25 kVA Single Phase Transformer Fuse Size (General Reference)

Another common search term is “25 kVA single phase transformer fuse size.”

Typical reference values:

• Primary side (medium voltage) fuse: usually 3A to 6A

• Secondary side protection: selected based on load current and local electrical codes

Final fuse selection should always comply with local utility standards and engineering design requirements. Technical support for fuse coordination can be provided when required.

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25 kVA Pole Mounted Transformer Price – What Affects the Cost?

When searching for “25 kVA pole mounted transformer price,” buyers should understand that pricing depends on several factors:

• Primary voltage level

• Certification requirements (UL, CSA, CE)

• Order quantity

• Customization options

• Packaging and logistics

Factory-Direct Pricing Advantage

As a manufacturer, we offer factory-direct pricing, which means:

• No distributor or middleman markup

• Competitive project-based quotations

• Stable product quality and lead time

• Cost savings for bulk orders

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25 kVA Single Phase Transformer for Sale – Global Availability

Our 25 kVA single phase transformers for sale are supplied to customers worldwide, including:

• United States

• Canada

• Guyana

• Mexico

• Argentina

• Brazil

• Costa Rica

• South Africa

Each unit can be manufactured to meet regional grid requirements and utility standards.

Customization Options

To meet different project and regional requirements, the transformer can be customized with:

• Primary voltage and tap settings

• Bushing configuration

• Surge arresters and accessories

• Corrosion-resistant coatings

• Nameplate language and ratings

• Export packaging solutions

Customization ensures compatibility with local electrical systems and long-term operational reliability.

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Certifications and Standards Compliance

This transformer can be supplied with the following certifications:

• CE Certification

• UL Certification

• CSA Certification

It is designed and tested according to ANSI, IEEE, and IEC standards, making it suitable for utility and government projects.

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Why Choose a 25 kVA Single Phase Pole Mounted Transformer?

Key benefits include:

• Proven performance in overhead networks

• High efficiency and low losses

• Compact and durable design

• Easy installation and maintenance

• Cost-effective solution for small to medium loads

• Global compliance and certification options

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Manufacturer Overview – Yawei Transformer

Yawei Transformer is a professional manufacturer specializing in distribution transformers for global markets. With advanced manufacturing facilities, strict quality control systems, and extensive export experience, we provide reliable transformer solutions to customers worldwide.

Our focus on quality, customization, and factory-direct pricing allows us to support utilities, EPC contractors, and distributors with dependable products and long-term value.

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Your Trusted Partner for Power Distribution

Whether you are sourcing transformers for a residential development, rural electrification project, or utility network upgrade, the 25 kVA Single Phase Pole Mounted Overhead Distribution Transformer from Yawei Transformer offers the reliability, efficiency, and value you need.

Yawei Transformer
Professional Manufacturer of 25 kVA Single Phase Pole Mounted Overhead Distribution Transformers – Designed for Global Power Networks.