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Single-phase overhead distribution transformer

1. Primarily used in low-voltage power supply terminals in rural areas, remote mountainous regions, suburban residential areas, and railway lines, suitable for distributed small-load power supply. 2. Core: Cold-rolled silicon steel sheet or amorphous alloy. 3. Windings: High-voltage winding, low-voltage winding. 4. Oil tank and transformer oil: Insulation, cooling. 5. Flexible installation, low investment cost, convenient operation and maintenance. 6. Standardized design; special requirements can be customized.

Product Description

Single-Phase Overhead Distribution Transformer - Reliable Power Solution for Your Distribution Network 

Our single-phase overhead distribution transformer from Lijie Electric delivers enterprise-grade performance where you need it most. Rated from 15kVA to 167kVA with voltage classes of 8kV and 20kV, these pole-mounted units are engineered for rural areas, suburban zones, and remote locations. With production capacity backed by 500,000 square meters of manufacturing space and over 160 specialized engineers, we ensure your transformer ships within 6–30 days. Our units meet ISO 9001:2015, CE, UL, and IEC standards, guaranteeing reliable operation in demanding outdoor environments up to 40℃.

single-phase overhead distribution transformer

What Makes Our Transformers Different

Designed for Real-World Applications

You face unique challenges in power distribution. Whether you're serving scattered residential areas, railway lines, or temporary construction sites, our transformers adapt to your needs. The pole-mounted design eliminates costly ground installations, letting you deploy power infrastructure quickly and efficiently.

Smart Engineering Features

Core Construction

We use premium cold-rolled silicon steel sheets or advanced amorphous alloy cores. This choice reduces energy losses and improves long-term performance.

Reliable Winding System

High-voltage and low-voltage windings are precision-wound for optimal electrical characteristics. Oil-immersed insulation ensures consistent cooling and protection.

Flexible Voltage Regulation

Non-excitation tap changers provide voltage adjustment ranges of +1/-3×2.5% or +0/-4×2.5%, helping you maintain stable power quality as loads fluctuate.

Robust Protection

Our transformers withstand power frequency voltages up to 35kV AC and impulse voltages to 75kV, protecting your investment against electrical surges.

Technical Specifications

Parameter Specification
Voltage Level 8kV, 20kV
Capacity Range 15-167kVA
Number of Phases Single-phase, Three-phase available
Frequency 50Hz, 60Hz
Voltage Regulation Non-excitation type
Tap Range +1/-3×2.5%, +0/-4×2.5%
Cooling Method Oil-immersed self-cooling
Insulation Level AC withstand: 35kV, Impulse: 75kV
Operating Temperature Max 40℃ outdoor
Standards Compliance ISO 9001:2015, CE, UL, IEC

​ single-phase overhead distribution transformer

Key Benefits for Your Projects

Space-Saving Installation

Mount directly on utility poles without ground footprint. Perfect for congested urban areas or widely dispersed rural networks.

Cost-Effective Deployment

Skip expensive civil works, buildings, and foundations. Your total project cost drops significantly compared to traditional substations.

Rapid Deployment

Assemble and energize in hours, not days. Ideal for emergency repairs or temporary power requirements.

Optimized Performance

Install close to load centers. Short low-voltage runs mean lower line losses and better voltage regulation for your customers.

Easy Maintenance

Visual inspection is straightforward. Testing and routine maintenance take minimal time, reducing operational costs.

Relocatable Design

When loads shift or lines need rerouting, simply move the unit. This flexibility protects your infrastructure investment.

Ideal Applications

  • Rural electrification projects
  • Suburban residential developments
  • Remote mountainous regions
  • Railway power supply systems
  • Temporary construction sites
  • Agricultural facilities
  • Light industrial parks
  • Emergency backup installations

Why Choose Lijie Electric

Manufacturing Excellence

Our two R&D bases in Xuzhou and Nantong span 500,000 square meters. With 2,000+ employees and cutting-edge equipment, we maintain consistent quality across every unit produced.

Technical Expertise

More than 160 engineers with doctoral and master's degrees drive continuous innovation. Our annual sales exceed 5 billion RMB, reflecting customer trust worldwide.

Global Recognition

Honored as "National High-Tech Enterprise" and "Specialized, Refined, and New 'Little Giant'" by Chinese authorities. Our quality management meets international benchmarks.

Customization Capability

Standard designs ship quickly, but we also accommodate special requirements. Need unique voltage taps, specific impedance values, or custom accessories? We'll engineer the solution.

Worldwide Service Network

From Australia to Kenya, Malaysia to Egypt, our transformers power communities globally. We provide installation guidance, technical documentation, spare parts, and ongoing support wherever you operate.

single-phase overhead distribution transformer

Frequently Asked Questions

Q: What's the typical delivery time for standard models?

A: Production cycles range from 6 to 30 days depending on order quantity and specifications. Contact us for precise scheduling.

Q: Can these transformers handle tropical climates?

A: Yes, our standard units operate up to 40℃. We can customize for higher ambient temperatures if your location requires.

Q: Do you provide installation support?

A: Absolutely. We supply detailed drawings, operation manuals, test reports, and installation guidance. Technical assistance is available throughout commissioning.

Q: What warranty coverage do you offer?

A: Our warranty terms align with GB/T 27922-2021 after-sales evaluation standards. Specific terms vary by region and application—reach out for details.

Q: Are replacement parts readily available?

A: Yes, we maintain spare parts inventory and provide ongoing component supply throughout the transformer's service life.

Q: Can I get a unit for 60Hz operation?

A: Certainly. We manufacture for both 50Hz and 60Hz frequencies to match your grid requirements.

Get Your Custom Solution Today

Ready to improve your distribution network efficiency? Contact our team at lijieelectrical@gmail.com to discuss your specific requirements and receive a detailed quotation.

Customer reviews background image

Here are some reviews from our users:

April 27, 2025

With a tight project schedule, the manufacturer delivered on time, and on-site technical personnel provided guidance throughout the entire installation and commissioning process; the collaboration was highly efficient and hassle-free.

July 2, 2025

During the preliminary phase, a selection plan was custom-tailored based on the actual site load requirements, resulting in a high degree of parameter compatibility. After-sales support responds within two hours, and ongoing technical support for operation and maintenance is comprehensive; we feel completely confident in a long-term partnership.

November 18, 2025

Deployed as a supporting component for a 35kV grid-connection project at a photovoltaic power station, the equipment operates for an average of 16 hours daily. It demonstrates excellent control over no-load losses, ensures smooth power generation and grid integration, and effectively reduces the station's overall energy consumption.

January 30, 2026

Under the continuous, high-load operating conditions of a factory production line, the equipment maintains stable electrical parameters and exhibits strong overload resistance, thereby guaranteeing an uninterrupted power supply for industrial production.

April 3, 2026

Integrated as a supporting component for a new energy photovoltaic grid-connection system, the manufacturer provided professional technical coordination and timely after-sales support, ensuring seamless adaptation to the specific electrical operating conditions required for grid integration.

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