25 kVA Utility Pole Transformer, 12.47 kV Primary / 120-240 V Secondary, Single-Phase Electric Pole Mounted

1. Product Overview

The 25 kVA utility pole transformer is a single-phase electric pole mounted distribution transformer engineered for overhead utility power systems. Featuring a 12.47 kV primary voltage and 120-240 V secondary output, it provides stable voltage regulation, efficient energy distribution, and long-term reliability for residential, commercial, and light industrial applications. This pole mounted transformer minimizes installation costs, reduces land use, and enhances grid reliability. Its robust design ensures safe, durable, and weather-resistant operation, suitable for both urban and rural overhead utility networks.

This transformer complies with North American utility standards and is adaptable for international grids, offering a flexible and scalable solution for diverse project requirements. PowerNex’s expertise ensures each 25 kVA pole mounted transformer delivers consistent performance, minimal maintenance, and high energy efficiency, making it a trusted choice for utilities, EPC contractors, and distributors globally.

2. 25 kVA utility pole transformer Technical Specifications

This specification emphasizes global utility compliance, high reliability, and adaptability to multiple voltage configurations, ensuring PowerNex transformers serve diverse markets worldwide.

3. Laboratory Testing & Quality Assurance

Each 25 kVA pole mounted transformer undergoes rigorous electrical, mechanical, and thermal testing following ANSI and IEEE standards, including:

• Dielectric tests to ensure insulation strength for primary and secondary windings

• Load loss and no-load loss tests for optimal efficiency

• Thermal performance tests simulating extreme temperatures and environmental conditions

• Short-circuit and overload testing to guarantee safety under fault conditions

PowerNex’s state-of-the-art laboratory and quality control processes ensure every transformer meets UL, cUL, CSA, CE, and SGS requirements, providing reliable operation for residential, commercial, and industrial utility applications.

4. Electrical Performance & Capacity Flexibility

The 25 kVA utility pole transformer is part of a flexible transformer family ranging from 10 kVA to 167 kVA, enabling utilities to standardize equipment while adjusting capacity and voltage to match load requirements. Its single-phase design ensures stable voltage output, low power loss, and high energy efficiency across neighborhoods, commercial districts, and light industrial areas.

With overhead installation and an oil-immersed cooling system, the transformer provides reliable thermal management for continuous operation. Utilities can choose custom primary and secondary voltage configurations, making it suitable for North American, Latin American, and international overhead power networks.

5. Global Distribution & Market Reach

PowerNex 25 kVA utility pole transformers are supplied worldwide, reaching markets including:

• North America: United States, Canada, Mexico

• South America: Brazil, Argentina, Venezuela

• Oceania: Australia, New Zealand

• Asia: Indonesia, Malaysia, Philippines

• Middle East: UAE, Saudi Arabia

• Europe: Germany, France, Russia

• Africa: South Africa

This global distribution demonstrates PowerNex’s ability to adapt to different grid standards, climates, and utility requirements, ensuring consistent performance across regions.

6. Detailed Application Case

Case Study: Residential Overhead Distribution Upgrade

In a suburban area in the United States, a 25 kVA PowerNex utility pole transformer was installed on an overhead line to replace aging infrastructure. The transformer delivered stable 120/240 V power to multiple households, improving voltage regulation, reducing outages, and supporting future residential load growth.

Key Outcomes:

• Quick installation due to pole mounted design

• Minimal land footprint and reduced excavation costs

• Compliance with North American utility safety and performance standards

• Reliable long-term operation with minimal maintenance

This example highlights PowerNex’s expertise in designing and deploying single-phase pole mounted transformers for practical utility applications.

7. OEM / ODM & Custom Branding Services

PowerNex supports OEM, ODM, and custom-branded transformers, enabling utilities, contractors, and distributors to customize:

• Capacity: 10–167 kVA

• Primary voltage: 7.2–15 kV

• Secondary voltage: 120/240 V, 240 V, or other standards

• Insulation, enclosure, labeling, and packaging

This flexibility ensures PowerNex can meet specific project requirements, streamline procurement, and provide long-term supply solutions for global distribution projects.

8. Installation & Maintenance Guidance

The pole mounted design allows:

• Easy mounting on utility or telephone poles

• Reduced infrastructure costs compared with pad-mounted solutions

• Elevated installation for safety and reliability

Maintenance includes:

• Periodic inspection of oil levels and insulation integrity

• Thermal monitoring for continuous operation

• Routine mechanical checks for hardware and enclosure integrity

This ensures decades of reliable transformer operation in overhead distribution systems.

9. Frequently Asked Questions (FAQ)

Q1: What is a utility pole transformer used for?
A1: It steps down medium-voltage power to low-voltage suitable for residential, commercial, and light industrial electricity distribution in overhead networks.

Q2: Can the 25 kVA transformer be used internationally?
A2: Yes, it can be customized for different primary/secondary voltages and frequencies to comply with global utility standards.

Q3: Is it suitable for harsh environmental conditions?
A3: Yes, its oil-immersed cooling and weather-resistant enclosure ensures reliable outdoor operation.

Q4: Does PowerNex offer OEM/custom branding?
A4: Yes, full OEM/ODM options are available, including capacity, voltage, and labeling customization.

10. Why Choose PowerNex

Choosing PowerNex guarantees:

• Reliable, efficient 25 kVA single-phase utility pole transformers

• Compliance with North American and international utility standards

• Flexible OEM/ODM/custom branding solutions

• Global distribution and support across North America, South America, Europe, Asia, Africa, and Oceania

• Durable, low-maintenance designs suitable for decades of service

PowerNex is a trusted manufacturer, supplier, and exporter of utility transformers, providing high-quality, innovative products and comprehensive technical support for residential, commercial, and light industrial overhead distribution projects worldwide.

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