3 phase pole mounted transformer | High-Efficiency Outdoor Power Solution – QIANLAI ELECTRIC
QIANLAI ELECTRIC’s 3 Phase Pole Mounted Transformer is a compact, durable, and high-performance power distribution solution designed for outdoor applications. Engineered to meet global standards and adapt to harsh environments, our transformers efficiently step down high-voltage electricity from overhead lines to usable low voltage for residential, commercial, and industrial loads. As a leading manufacturer with decades of experience, we deliver reliable pole-mounted transformers that balance cost-effectiveness, safety, and long-term performance.
Product Overview: 3 Phase Pole Mounted Transformer
Our 3 phase pole mounted transformer is tailored for space-constrained outdoor settings, eliminating the need for dedicated substations and reducing installation costs. Unlike traditional distribution transformers, this integrated solution combines a robust three-column core, high-quality winding, and weatherproof enclosure—all optimized for pole mounting. It provides balanced three-phase power, ensuring stable operation for motors, lighting systems, and other critical equipment in urban, suburban, and remote rural areas.
Ideal for utility companies, construction projects, and commercial complexes, QIANLAI’s transformer meets stringent IEEE, IEC, and CE standards, guaranteeing compatibility with global power grids. Whether you need a step-up or step-down configuration, our customizable designs adapt to diverse voltage requirements and load demands.
Key Features & Advantages
- Compliant with Global Standards: Manufactured to meet IEEE C57.12.00, IEC 60076, and CE/UL certifications, ensuring safety, reliability, and market access in North America, Europe, and Asia <superscript:2superscript:3.
- Robust Outdoor Design: Sealed mild steel tank with corrosion-resistant powder coat finish (ASA 70 gray) and IP23+ protection, enduring extreme temperatures (-30°C to +50°C), humidity, and coastal environments. Optional stainless steel tank available for enhanced durability
- High Efficiency & Low Loss: Equipped with copper or aluminum winding and advanced core design, achieving up to 99% efficiency. Complies with GB standards, minimizing energy waste and operational costs. Low no-load and full-load losses ensure long-term savings .
- Compact & Stable Structure: Rectangular or round tank options (customizable) with a low center of gravity, preventing tipping and saving pole space. Shorter tank design vs. traditional models allows more under-pole clearance <superscript:2.
- Integrated Safety Features: Automatic pressure relief device, dual tank grounding provisions, lightning arrester mounting points, and tin-plated bronze terminals (compatible with copper/aluminum connections) ensure safe operation and easy maintenance <superscript:2superscript:4.
- Customizable Configurations: Available in 30kVA to 630kVA capacity range, primary voltage up to 33kV, secondary voltage options (208Y/120V, 480Y/277V, 400V/380V, etc.), and delta/wye configurations to match specific project needs <superscript:1superscript:4.
- Eco-Friendly Insulation: Filled with high-grade mineral oil or optional natural ester oil (biodegradable, fire-retardant) for superior insulation and heat dissipation, extending service life to 20+ years <superscript:2superscript:3.
Technical Specifications
| Parameter | Details |
| Phase | Three Phase |
| Capacity Range | 30kVA – 630kVA |
| Primary Voltage | 10kV, 11kV, 13.8kV, 20kV, 33kV (customizable) |
| Secondary Voltage | 400V/380V, 480Y/277V, 600V (step-up/step-down available) |
| Frequency | 50Hz / 60Hz |
| Winding Material | Copper (standard) / Aluminum (optional) |
| Cooling Method | ONAN (Oil Natural, Air Natural) |
| Temperature Rise | 65°C (standard) |
| Insulation Class | Class E (120°C) / Class F (optional) |
| Sound Level | ≤55 dBA (at full load) |
| Certifications | CE, IEC, ISO9001 |
Applications
QIANLAI’s 3 phase pole mounted transformer is versatile for various outdoor power distribution scenarios, including:
- Residential areas (urban & rural) for household electricity supply
- Commercial districts (shopping malls, retail stores, street lighting)
- Industrial parks & construction sites (powering motors, tools, and temporary facilities)
- Remote regions (mountainous areas, rural communities) with limited installation space
- Utility grid expansion & renovation projects
Why Choose QIANLAI ELECTRIC?
As a trusted manufacturer of 3 phase pole mounted transformers, QIANLAI ELECTRIC combines precision engineering, strict quality control, and global service capabilities to deliver products that exceed expectations:
- Expert Manufacturing: Advanced production lines and rigorous testing (no-load loss, full-load loss, insulation resistance, etc.) ensure consistent quality.
- Customization Capabilities: Tailor capacity, voltage, enclosure, and accessories to meet your project’s unique requirements.
- Global Compliance: Products certified for international markets, simplifying import processes and ensuring grid compatibility.
- Cost-Effective Solutions: Competitive pricing with no compromise on quality, plus low maintenance and energy costs.
- Reliable After-Sales Service: 24/7 technical support, 5-year warranty (extendable to 8 years), and timely spare parts supply.
FAQs
- What is the difference between delta and wye configurations for 3 phase pole mounted transformers?
Delta configurations form a closed loop, offering high reliability and supporting higher loads without voltage imbalance (no neutral point). Wye configurations provide a neutral point, ideal for supplying both three-phase and single-phase loads (common in residential areas) <superscript:1superscript:5.
- Can the transformer be used in coastal or humid environments?
Yes. Our standard models feature corrosion-resistant powder coating, and optional stainless steel tanks are available for enhanced protection against salt spray and humidity, ensuring durability in coastal regions.
- What is the lead time for a custom 3 phase pole mounted transformer?
Standard models are available in 15-20 working days. Custom configurations typically take 25-35 working days, depending on complexity and order volume.






