Single-Phase Pole-Mounted Barrel Transformer 15 kVA 25 kVA 100 kVA

As a critical power supply device at the end of the distribution network, the Single-Phase Pole-Mounted Barrel Transformer features a compact structure, high efficiency, and flexible installation. It is widely used in urban and rural low-voltage distribution systems, providing stable and reliable power for residential users, small commercial and industrial facilities, and public infrastructure.

The product range covers 15 kVA, 25 kVA, and 100 kVA, enabling precise matching to different load requirements and ensuring safe power transformation and efficient energy transmission.

Key Features & Structural Advantages

Multiple Capacity Options

• 15 kVA – Ideal for small residential distribution areas

• 25 kVA – Suitable for villages or street-level centralized power supply

• 100 kVA – Designed for large shops or localized power supply in industrial parks

These options meet a wide range of load demands, from low to medium-high power consumption, allowing users to select the most suitable model based on actual operating conditions.

Pole-Mounted Design

The cylindrical, fully sealed barrel-type structure is compact and lightweight. It can be directly mounted on utility poles or dedicated brackets without the need for a separate substation room, significantly reducing installation space and civil construction costs. This design is especially suitable for outdoor environments with limited space or complex terrain.

Reliable Insulation & Cooling

High-quality mineral oil is used as both the insulating and cooling medium, combined with a fully sealed oil tank. This design provides excellent resistance to moisture, dust, and aging, effectively isolating the transformer from external environmental influences. Stable operation is ensured within a wide ambient temperature range of -25°C to +40°C, minimizing maintenance requirements.

Excellent Safety Performance

The transformer is equipped with built-in overload and short-circuit protection, enabling rapid response to grid abnormalities and preventing equipment damage and safety hazards. The enclosure is made of corrosion-resistant cold-rolled steel, treated with pickling, phosphating, and powder coating. With a protection level of IP23, it offers strong resistance to rain, wind, and UV exposure, ensuring a long service life in outdoor applications.

Typical Applications

Designed for single-phase 10 kV / 0.4 kV distribution systems, this transformer is widely used in:

• Rural power grid renovation projects and electricity supply for remote areas

• Urban residential communities and street-side commercial shops

• Public facilities such as street lighting and traffic monitoring systems

• Small factories, farms, and other low-voltage power consumption sites

Product Advantages

• High Efficiency & Energy Saving
  Utilizing low-loss silicon steel cores and high-quality winding materials, both no-load loss and load loss comply with relevant IEC standards (such as IEC 60076 series) standards, significantly reducing long-term operating costs.

• Easy Installation
  Integrated design with simple wiring and minimal on-site commissioning ensures fast and efficient installation.

• Stable Operation
  Compact structure and strong short-circuit withstand capability reduce the impact of grid fluctuations and guarantee continuous power supply.

• Complete Specifications & Customization
  In addition to the standard 15 kVA / 25 kVA / 100 kVA ratings, customized capacities and voltage levels are available upon request to meet specific project requirements.

Technical Specifications (Typical)

Core Loss Performance Reference

Values shown are typical reference data. Actual losses may vary depending on voltage class, frequency, and specific design requirements.

General Technical Data

Frequently Asked Questions (FAQ)

Q1: Is this transformer suitable for outdoor installation in harsh environments?
A1: Yes. The fully sealed barrel-type oil tank, corrosion-resistant steel enclosure, and IP23 protection level make it suitable for long-term outdoor operation under rain, dust, and UV exposure.

Q2: What is the typical service life of this transformer?
A2: Under normal operating conditions and proper installation, the designed service life is over 25 years, with minimal routine maintenance required.

Q3: Can the transformer operate under voltage fluctuations or temporary overloads?
A3: Yes. The transformer is designed with strong short-circuit withstand capability and built-in overload protection, allowing it to handle temporary grid fluctuations safely.

Q4: Are customized voltage ratios or capacities available?
A4: Absolutely. In addition to standard 15 kVA, 25 kVA, and 100 kVA ratings, customized capacities, voltage ratios, and special requirements can be provided upon request.

Q5: Does the transformer comply with international standards?
A5: Yes. The design, manufacturing, and testing processes are aligned with the IEC 60076 transformer standards, ensuring reliable performance for international power distribution projects.

Why Choose Us – Designed for the North American Market