50 kVA power pole mounted single phase oil filled distribution transformer with 7.2–34.5 kV high voltage primary and low voltage secondary, manufactured by Yawei Transformer for global utility power networks

50 kVA Power Pole Mounted Utility Grade Distribution Transformer

Manufactured by Yawei Transformer, this utility-grade 50 kVA pole mounted power distribution transformer is designed for outdoor medium- and low-voltage overhead distribution applications. Rated at 50 kVA, it is suitable for residential, rural, and light commercial power supply, and is engineered in accordance with ANSI, IEEE, and IEC standards for pole-mounted installation in modern utility networks worldwide.

Rated Capacity: 50 kVA (customizable, typical range 15–500 kVA)
Primary Voltage: Medium-voltage options available, typically 7.2 kV, 12.47 kV, 13.2 kV, 24.9 kV, or 34.5 kV, in line with utility standards
Secondary Voltage: Standard low-voltage configurations such as 240/120 V, 480Y/277 V, 208Y/120 V, or project-specific voltages
Transformer Type: Pole mounted distribution transformer, single-phase or three-phase
Installation Type: Outdoor, pole-mounted for overhead distribution networks
Cooling Method: ONAN (Oil Natural Air Natural)
Winding Configuration: Wye / Wye, Delta / Wye, or other vector groups as required
Voltage Regulation: Off-circuit tap changer (standard); optional configurations available
Insulation System: Oil-immersed design using mineral oil or approved environmentally friendly insulating fluids
Applicable Standards: ANSI / IEEE / IEC (utility or project-specific compliance available)
Typical Applications: Utility overhead distribution lines, pole-mounted substations, residential power supply, rural electrification programs, light commercial loads, and distribution network expansion or upgrade projects

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1. Product Overview

The 50 kVA power pole mounted utility grade overhead distribution transformer is a widely used solution for stepping down medium voltage electricity to safe and stable low voltage levels in overhead power distribution systems. Designed and manufactured by Yawei Transformer, this 50 kVA pole mounted distribution transformer is engineered to meet the performance and reliability requirements of modern utility networks.

As a compact and efficient 50 kVA overhead distribution transformer, it is suitable for residential neighborhoods, rural electrification programs, and utility grid expansion projects across North America, South America, Central Asia, Africa, Europe, and other global markets. The pole-mounted structure allows fast installation on utility poles while minimizing ground space requirements.

2. Technical Specifications

Item	Specification
Rated Capacity	50 kVA (Full series: 15–500 kVA)
Transformer Type	Power Pole Mounted / Overhead Distribution Transformer
Phase	Single Phase (Three Phase optional)
Primary Voltage (HV)	7.2 kV / 12.47 kV / 13.2 kV / 24.9 kV / 34.5 kV
Secondary Voltage (LV)	120/240 V, 240/480 V, or customized
Frequency	50 Hz / 60 Hz
Insulation Type	Oil Immersed (Mineral Oil / Natural Ester optional)
Cooling Method	ONAN
Installation	Utility Power Pole
Standards	ANSI, IEEE, DOE (CSA optional)
Application	Utility Overhead Power Distribution

50 kVA power pole mounted utility grade overhead distribution transformer with high voltage primary 7.2–34.5 kV and low voltage secondary outputs, manufactured by Yawei Transformer for global power markets

50 kVA power pole mounted utility grade oil immersed distribution transformer with 7.2–34.5 kV high voltage primary and low voltage secondary options, produced by Yawei Transformer for global utility power markets

50 kVA ANSI power pole mounted utility grade distribution transformer with high voltage primary 7.2–34.5 kV and low voltage secondary, oil-filled design by Yawei Transformer for utility markets in North America, South America and Africa

3. Pole Mounted Overhead Distribution Design

This 50 kVA power pole mounted distribution transformer is designed specifically for overhead installation on utility poles. Compared with pad-mounted units, a pole mounted overhead distribution transformer offers easier access, faster installation, and lower civil construction costs. The 50 kVA pole mounted transformer is therefore a preferred choice for utility companies and contractors operating overhead distribution networks.

4. Utility Grade Construction

As a utility grade 50 kVA distribution transformer, this product is built using high-quality magnetic steel cores and precision-wound conductors to ensure low losses and stable voltage regulation. The robust tank structure and corrosion-resistant coating provide long service life under outdoor conditions, making it suitable for utility-grade applications worldwide.

5. High Voltage and Low Voltage Configuration

The high voltage primary of this 50 kVA overhead distribution transformer supports standard utility voltage classes from 7.2 kV up to 34.5 kV, enabling seamless integration into medium voltage distribution lines.
The low voltage secondary can be configured to common outputs such as 120/240 V or 240/480 V, ensuring compatibility with residential and light commercial loads. Customized HV/LV combinations are available to meet regional grid requirements.

6. Oil Immersed Insulation System

This model is an oil immersed 50 kVA power pole mounted distribution transformer, utilizing mineral oil or optional natural ester oil for insulation and cooling. The oil-filled design improves heat dissipation, enhances dielectric strength, and protects internal components from moisture, making the transformer suitable for harsh climates and continuous outdoor operation.

7. Capacity Range and Series Coverage

Although this page focuses on the 50 kVA pole mounted overhead distribution transformer, Yawei Transformer offers a complete product range from 15 kVA to 500 kVA. This wide capacity range allows utilities and distributors to standardize specifications while selecting the appropriate kVA rating for different load demands within the same distribution network.

8. Compliance with International Standards

Each 50 kVA utility grade distribution transformer is designed, manufactured, and tested in accordance with ANSI and IEEE standards. Optional CSA compliance is available for Canadian and international projects. Routine and type tests are conducted at the factory to ensure electrical performance, safety, and mechanical integrity.

9. Global Markets and Applications

The 50 kVA power pole mounted overhead distribution transformer has been supplied to utility and infrastructure projects in regions such as the United States, Canada, Mexico, Brazil, Argentina, Guyana, parts of Europe, Australia, Russia, South Africa, and other emerging markets. Its flexible voltage configuration and reliable design make it suitable for diverse grid conditions across South America, Africa, and Central Asia.

10. Manufacturer, Factory Supply, and Wholesale Service

Yawei Transformer is a professional transformer manufacturer with advanced production facilities and experienced engineering teams. As a factory-direct supplier, we provide wholesale supply, technical support, and customized solutions for utilities, EPC contractors, and electrical distributors worldwide. Stable production capacity ensures reliable delivery for both small and large-scale projects.

11. Typical Applications

Utility overhead distribution networks
Residential and suburban power supply
Rural electrification programs
Grid expansion and reinforcement projects
Replacement of aging pole mounted transformers

12. Project Case Studies

Case Study 1 – North America

In a North American utility upgrade project, the 50 kVA power pole mounted utility grade distribution transformer was installed to replace aging overhead units. With a 7.2 kV primary voltage and 120/240 V secondary, the 50 kVA transformer delivered stable power to residential customers while reducing maintenance requirements.

Case Study 2 – South America

For rural electrification initiatives in South America, multiple 50 kVA overhead distribution transformers were deployed along newly constructed power lines. The oil immersed design ensured reliable operation under high temperatures and fluctuating load conditions.

Case Study 3 – Africa

In an African infrastructure expansion project, the 50 kVA pole mounted distribution transformer was used to supply power to community facilities and small commercial users. The transformer’s high voltage capability up to 34.5 kV allowed smooth integration into existing utility networks.

13. Frequently Asked Questions (FAQ)

Q1: What is a 50 kVA power pole mounted distribution transformer?
A 50 kVA power pole mounted distribution transformer is used in overhead utility systems to step down medium voltage electricity to low voltage for end users.

Q2: Is this transformer suitable for utility-grade applications?
Yes, this 50 kVA utility grade overhead distribution transformer is designed to meet ANSI and IEEE utility standards.

Q3: What high voltage and low voltage options are available?
High voltage options range from 7.2 kV to 34.5 kV, while low voltage outputs include 120/240 V and 240/480 V, with customization available.

Q4: Is the 50 kVA distribution transformer oil filled?
Yes, it is an oil immersed 50 kVA distribution transformer, designed for efficient cooling and long-term reliability.

Q5: Does Yawei Transformer offer other capacities?
Yes, besides 50 kVA, Yawei Transformer supplies pole mounted distribution transformers from 15 kVA to 500 kVA.

14. How to Select the Right kVA Capacity

Selecting the appropriate kVA capacity is an important step when specifying a pole mounted overhead distribution transformer. An undersized transformer may lead to overheating and reduced service life, while oversizing can result in unnecessary investment and lower efficiency.

When choosing a suitable kVA rating, customers should first evaluate the actual connected load and expected load growth. For residential and rural distribution networks, capacities such as 25 kVA, 37.5 kVA, and 50 kVA are commonly used to serve clusters of households or small community loads. For higher demand applications, including small commercial users or expanding distribution lines, larger ratings such as 75 kVA, 100 kVA, or 167 kVA may be more appropriate.

It is also important to consider load characteristics, including peak demand, starting currents, and daily load fluctuations. In addition, environmental factors such as ambient temperature and installation conditions can influence capacity selection. Choosing a transformer with adequate margin helps ensure stable operation and long-term reliability.

Yawei Transformer provides technical support to assist customers in selecting the right kVA capacity based on load calculations, voltage requirements, and project conditions, helping ensure an efficient and dependable power distribution solution.

15. Available Capacities, Customization, and Supply Support

In addition to the 50 kVA model, Yawei Transformer supplies a full range of pole mounted overhead distribution transformers with commonly requested capacities including 15 kVA, 25 kVA, 37.5 kVA, 50 kVA, 75 kVA, 100 kVA, 167 kVA, 250 kVA, and up to 500 kVA. This wide selection allows customers to match transformer capacity precisely to load requirements while maintaining consistent design standards across projects.

Customization options are available for high voltage and low voltage ratings, insulation oil type, mounting configuration, and regional standard compliance, ensuring suitability for different utility systems and local grid specifications. As a factory-direct manufacturer, Yawei Transformer offers stable production capacity, flexible order quantities, and wholesale supply for utilities, EPC contractors, and electrical distributors.

Whether you are planning a single replacement unit or a large-scale distribution project, our engineering and sales teams are ready to support your requirements. Contact Yawei Transformer to discuss specifications, request pricing, or obtain technical assistance for your pole mounted distribution transformer needs.