37.5 kVA Telephone Pole Mounted Distribution Transformer 7.2kV / 12.47kV / 13.8kV, 120/240V

Utility-Grade Single Phase Overhead Distribution Transformer for Residential and Rural Power Networks

The 37.5 kVA telephone pole mounted distribution transformer is a utility-grade, oil-immersed single phase transformer specifically engineered for overhead power distribution systems. Designed for installation on telephone poles or utility poles, this transformer plays a critical role in stepping down medium voltage to safe and usable low voltage for end users.

Widely used across residential neighborhoods, rural electrification projects, light commercial facilities, and utility grid expansion programs, the 37.5 kVA pole mounted transformer is one of the most commonly specified capacities in overhead distribution networks. With primary voltage options of 7.2kV, 12.47kV, and 13.8kV and a standard 120/240V secondary output, it fully complies with North American and international utility voltage standards.

Manufactured for long-term outdoor operation, this telephone pole mounted distribution transformer delivers high efficiency, stable voltage regulation, and excellent environmental resistance, making it ideal for utility companies, EPC contractors, and electrical distributors worldwide.

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Technical Specifications – 37.5 kVA Pole Mounted Distribution Transformer

Parameter	Specification
Rated Capacity	37.5 kVA
Transformer Type	Telephone pole mounted distribution transformer
Phase	Single phase
Primary Voltage Options	7.2 kV / 12.47 kV / 13.8 kV
Secondary Voltage	120/240 V
Frequency	50 Hz / 60 Hz
Cooling Method	ONAN (Oil Natural Air Natural)
Insulation System	Oil-immersed (mineral oil or eco-friendly fluid optional)
Tap Changer	Off-circuit tap changer (standard)
Installation	Outdoor, overhead, pole-mounted
Mounting Type	Telephone pole / utility pole
Applicable Standards	ANSI, IEEE, IEC
Certifications Available	CE, UL, CSA
Typical Capacity Range	10 kVA – 500 kVA (customizable)

What Is a 37.5 kVA Telephone Pole Mounted Distribution Transformer?

A 37.5 kVA telephone pole mounted distribution transformer is a compact, oil-filled transformer designed to be mounted on overhead poles to supply low-voltage electricity to downstream users. Unlike pad-mounted transformers used in underground systems, pole mounted transformers are optimized for overhead lines, offering easier installation, lower cost, and proven reliability in rural and suburban grids.

The 37.5 kVA rating represents an ideal balance between load capacity and efficiency. It is commonly selected for:

• Residential blocks

• Rural households and farms

• Small commercial buildings

• Telecommunications and street infrastructure

• Utility service upgrades

Because of its size and performance, the 37.5 kVA pole mounted distribution transformer remains one of the most widely deployed single phase transformer ratings in utility networks.

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Primary Voltage Options: 7.2kV, 12.47kV, and 13.8kV

This telephone pole mounted distribution transformer is engineered to support multiple medium-voltage classes to match regional utility standards:

• 7.2 kV – Common in older and rural overhead distribution systems

• 12.47 kV – Widely used by North American utilities

• 13.8 kV – Popular in modern utility grids and industrial-adjacent distribution

By offering 7.2kV, 12.47kV, and 13.8kV primary voltage options, the 37.5 kVA pole mounted transformer can be seamlessly integrated into existing overhead networks without costly infrastructure changes.

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120/240V Secondary Voltage for End-User Distribution

On the low-voltage side, this 37.5 kVA telephone pole mounted distribution transformer delivers a 120/240V secondary output, which is standard for residential and light commercial electricity supply.

The 120/240V configuration allows:

• 120V single-phase loads (lighting, outlets)

• 240V loads (HVAC, pumps, appliances)

• Balanced power distribution across end users

This makes the transformer ideal for residential power supply, rural electrification, and utility service connections.

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Utility-Grade Design for Overhead Distribution Networks

This 37.5 kVA pole mounted distribution transformer is built to meet the mechanical, electrical, and thermal demands of utility overhead systems.

Key Utility-Grade Features:

• Heavy-duty steel tank with corrosion-resistant coating

• Hermetically sealed or conservator-type oil system

• High-quality copper or aluminum windings

• Optimized core design for low losses

• Designed for continuous outdoor exposure

Whether installed in hot, cold, humid, or coastal environments, the transformer maintains reliable performance throughout its service life.

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Oil-Immersed ONAN Cooling System

The oil-immersed ONAN cooling method (Oil Natural Air Natural) is the industry standard for pole mounted distribution transformers.

Benefits include:

• Efficient heat dissipation

• Enhanced insulation strength

• Long service life

• Minimal maintenance requirements

The oil system can use standard mineral oil or environmentally friendly insulating fluids, depending on project or regulatory requirements.

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Typical Applications of the 37.5 kVA Pole Mounted Transformer

The 37.5 kVA telephone pole mounted distribution transformer is widely used in:

• Residential overhead distribution lines

• Rural electrification projects

• Utility grid expansion and reinforcement

• Small commercial facilities

• Agricultural and farming power supply

• Telecommunications and infrastructure support

Its compact footprint and reliable performance make it suitable for both new installations and replacement of aging transformers in existing networks.

Global Markets and Utility Projects

This 37.5 kVA telephone pole mounted distribution transformer is supplied to utilities, contractors, and distributors across:

• United States

• Canada

• Guyana

• Mexico

• Argentina

• Brazil

• Costa Rica

• South Africa

• And other international markets

The transformer is designed to comply with regional utility standards while remaining flexible enough for customized voltage, certification, and labeling requirements.

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Standards and Certifications

The 37.5 kVA pole mounted distribution transformer can be manufactured in compliance with:

• ANSI

• IEEE

• IEC

Available certifications include:

• CE

• UL

• CSA

These certifications ensure safety, performance, and regulatory acceptance in North America and global markets.

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Customization Options

As a professional transformer manufacturer, we provide full customization for the 37.5 kVA telephone pole mounted distribution transformer, including:

• Primary and secondary voltage customization

• Tap changer configurations

• Insulation fluid options

• Loss level optimization

• Nameplate language and branding

• Packaging for export logistics

OEM and private-label transformer solutions are also available for distributors and utility partners.

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Manufacturer Direct Factory Pricing

Purchasing a 37.5 kVA telephone pole mounted distribution transformer directly from the manufacturer offers significant advantages:

• Competitive factory pricing

• Stable production lead times

• Strict quality control

• Engineering and technical support

• Long-term supply capability

This makes our transformers ideal for both single-project procurement and long-term utility supply agreements.

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Why Choose This 37.5 kVA Pole Mounted Distribution Transformer?

• Proven utility-grade design

• Optimized for overhead networks

• Multiple medium-voltage options

• Standard 120/240V output

• Certified for global markets

• Customizable to project needs

Whether you are upgrading an existing distribution line or building a new overhead network, this 37.5 kVA telephone pole mounted distribution transformer delivers reliable, cost-effective power distribution.

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Conclusion

The 37.5 kVA Telephone Pole Mounted Distribution Transformer, designed for 7.2kV / 12.47kV / 13.8kV primary voltage and 120/240V secondary voltage, is a core capacity solution within modern utility overhead distribution systems. Positioned between smaller and larger standard ratings, the 37.5 kVA unit is widely selected for residential service areas, rural electrification networks, agricultural loads, and light commercial power supply, offering an optimal balance of load capacity, efficiency, and cost.

Within utility distribution planning, the 37.5 kVA transformer is commonly deployed alongside a full range of standardized single-phase pole mounted transformer capacities, including 15 kVA, 25 kVA, 30 kVA, 37.5 kVA, 45 kVA, 50 kVA, 75 kVA, 100 kVA, 112.5 kVA, 150 kVA, and 167 kVA allowing utilities to accurately match transformer capacity to real-world load demand and future growth. This scalable capacity coverage ensures seamless system expansion, replacement, and network optimization across overhead distribution lines.

Engineered with robust outdoor construction, flexible voltage configurations, and compliance with ANSI, IEEE, and IEC standards, this telephone pole mounted distribution transformer supports long-term operation under diverse environmental conditions. With optional CE, UL, and CSA certifications, it is suitable for utility projects in the United States, Canada, Latin America, Africa, and other global markets.

Offered at direct manufacturer factory pricing with full customization support, the 37.5 kVA pole mounted distribution transformer delivers outstanding value and reliability for utility networks requiring dependable solutions across 15 kVA to 167 kVA overhead transformer applications.

Manufactured and supplied globally by Yawei Transformer.