QIANLAI Pole Distribution Transformer – High Efficiency & Reliable Power Solution
As the founder of QIANLAI Transformer Factory, I have always believed that a high-quality pole distribution transformer is the cornerstone of stable power distribution. For over a decade, we have been committed to manufacturing pole-mounted distribution transformers that combine durability, energy efficiency, and cost-effectiveness, serving global clients in power grids, urban construction, and rural electrification projects. Our pole distribution transformers are engineered to convert medium-high voltage electricity into usable low-voltage power for residential, commercial, and industrial applications, with a focus on safety, space-saving, and long-term performance.
Product Overview
QIANLAI pole distribution transformer, also known as pole-mounted distribution transformer, is a compact outdoor power equipment mounted on wooden or concrete utility poles. Designed for horizontal installation with overhead cables, it efficiently converts high voltage (10/11/33 kV) to low voltage (0.4 kV/240V) to meet the power demands of homes, small businesses, and remote areas. Available in single-phase and three-phase configurations, with capacity ranging from 25 kVA to 400 kVA, our transformers adopt an oil-immersed (ONAN) cooling system and comply with international standards such as IEC 60076, ANSI C57.12.00, and GB 1094, ensuring compatibility and reliability across global markets.
Core Advantages of QIANLAI Pole Distribution Transformer
✅ Enhanced Safety & Low Risk
Installed 5 meters above the ground on single or double-pole structures, our pole distribution transformers are out of reach of humans and animals, minimizing the risk of electric shock and vandalism. The sealed tank design with built-in surge arresters and current-limiting fuses provides comprehensive protection against overvoltage and short circuits, ensuring safe operation in outdoor environments.
✅ Energy Efficiency & Cost Saving
Adopting grain-oriented silicon steel or amorphous alloy cores, our transformers achieve ultra-low no-load loss (as low as 0.34 kW) and load loss, reducing energy consumption by up to 30% compared to conventional products. The compact design eliminates the need for dedicated substations and land acquisition, cutting civil engineering costs by 40% and shortening the low-voltage power supply radius, which lowers line losses by over 60% for rural and scattered areas.
✅ Durable & Low Maintenance
High-voltage coils are made of high-quality polyurethane enameled copper wires, and low-voltage coils are wrapped with cable paper, with interlayer insulation bonded into a fixed unit to prevent displacement. The fully sealed cylindrical oil tank resists corrosion, moisture, and extreme temperatures (-25℃ to +45℃), enabling maintenance-free operation for up to 15 years. All components undergo strict aging tests to ensure durability in harsh environments such as coastal areas and mountainous regions.
✅ Flexible Customization & Fast Deployment
We offer customized solutions for voltage levels (6kV to 33kV), capacity, frequency (50/60Hz), and connection groups (YYN 0 / DYN 11) to meet specific project needs. The lightweight design (starting from 910 kg) allows for easy transportation and on-site installation, which can be completed within 3-5 days, significantly reducing construction cycles for emergency power supply and grid renovation projects.
Technical Specifications
| Parameter | Specification |
| Rated Capacity | 25 kVA – 400 kVA |
| High Voltage | 6/10/11/33 kV |
| Low Voltage | 0.4 kV / 240 V |
| Phase | Single Phase / Three Phase |
| Tapping Range | ±2×2.5% |
| Impedance Voltage | 4% – 6% |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Coil Material | Copper / Aluminum (Customizable) |
| Protection Class | IP23+ |
| Certifications | IEC, CE, ANSI, GB |
Application Fields
QIANLAI pole distribution transformers are widely used in scenarios requiring efficient and space-saving power distribution, including:
- Urban and rural residential areas: Providing stable power for households, street lights, and community facilities.
- Remote and mountainous regions: Solving power supply problems in hard-to-reach areas with flexible installation.
- Commercial and industrial zones: Supporting small businesses, workshops, and temporary construction sites.
- Power grid renovation: Ideal for upgrading old grids to improve energy efficiency and supply reliability.
- Railway and highway projects: Supplying power for signal systems and auxiliary facilities.
Why Choose QIANLAI Factory?
As a professional manufacturer with 10+ years of experience in transformers, QIANLAI has strict quality control systems from raw material procurement to finished product delivery. We own advanced production lines with an annual capacity of 5,000 units, ensuring timely delivery for bulk orders. Our team provides one-stop services including customization, technical consultation, on-site installation guidance, and after-sales support (2-year warranty and lifelong maintenance). We have exported our pole distribution transformers to Southeast Asia, Africa, South America, and Europe, winning trust from global clients with superior quality and competitive prices.
