Energy Transformer — Manufacturer, Supplier, Wholesale & Custom OEM Factory
En 37.5 kVA Electric Pole Transformer is one of the most widely used single-phase distribution transformers in North America and South America, supporting residential, rural, agricultural, and light-commercial loads. As an essential component of the overhead power grid, this oil-filled pole-mounted transformer provides reliable voltage conversion from medium-voltage primary lines (such as 13.2 kV, 13.8 kV, 12.47 kV, 7.62 kV) to standard low-voltage outputs like 120/240 V.
Energy Transformer manufactures and supplies high-performance 37.5 kVA pole transformers engineered to meet ANSI, IEEE, DOE, CSA, and various South American utility standards. Our units are built for long service life, low maintenance, and stable operation in harsh climates including tropical, coastal, desert, high-altitude, and rural environments.
With factory-direct production, competitive pricing, and full customization options, Energy Transformer is the preferred supplier for utility companies, distributors, EPC contractors, and government electrification programs across the Americas.
Technical Specifications — 37.5 kVA Electric Pole Transformer
| Potencia nominal | 37.5 kVA |
| Fase | Monofásico |
| Application Type | Overhead Distribution / Pole-Mounted |
| Método de refrigeración | ONAN (Aceite Natural Aire Natural) |
| Frecuencia | 50 / 60 Hz |
| Clase de aislamiento | Class A / F (optional) |
| Fluido aislante | Mineral Oil (IEC 60296) / FR3 Bio Oil (optional) |
| Material del núcleo | CRGO Silicon Steel, High-Efficiency Low-Loss |
| Material de bobinado | Copper (standard) / Aluminum (optional) |
| Primary (HV) Voltage Options | 7.2 kV, 7.62 kV, 12.47 kV, 13.2 kV, 13.8 kV, 19.9 kV, 22.86 kV |
| Secondary (LV) Voltage Options | 120/240 V (Split-Phase), 220/127 V |
| Impedancia | 2% – 2.5% (customizable) |
| Grupo Vector | Single-Phase (2-winding) |
| Cambiador de grifos | Off-Circuit Tap Changer ±2×2.5% / ±5% / ±10% |
| Tipo de casquillo | Porcelain HV/LV Bushings (polymer optional) |
| Diseño de depósitos | Round Tank / Square Tank |
| Tank Finish | ANSI 70 Gray / Custom Colors |
| Dispositivos de protección | Pressure Relief Valve, Oil Level Indicator, Grounding Lugs |
| Lightning Arresters | Optional HV Arresters |
| Mounting Structure | Pole-Mounted Brackets (ANSI standard) |
| Temperatura ambiente de funcionamiento | -40°C to +50°C (extended ranges optional) |
| Altitud | Standard ≤1000 m / High-Altitude Designs Available |
| Testing Standards | ANSI C57, IEEE, DOE Efficiency, CSA (Canada), IEC 60076 |
| Nivel de ruido | ≤45–50 dB (Low-Noise Design Optional) |
| Estimated Lifespan | 25–35+ Years |
Product Features
1. High Reliability for Utility Distribution
The 37.5 kVA pole-mounted transformer is designed for continuous outdoor operation. Its oil-filled insulation, durable tank construction, and precision-wound copper coils ensure stable performance for 25–35+ years.
2. High-Efficiency Magnetic Core
Made from premium CRGO silicon steel, the transformer achieves lower no-load losses, reduces operating costs, and meets energy efficiency requirements in the USA, Canada, and Latin America.
3. Oil-Filled Cooling System
The transformer uses high-insulation mineral oil with excellent dielectric strength. It provides:
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Better heat dissipation
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Longer equipment life
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Higher overload capability
Both mineral oil y environmentally friendly FR3 oil options are available.
4. Rugged Tank Construction
Engineered to withstand outdoor conditions:
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Depósito de acero resistente a la corrosión
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High-strength welds
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Optional hot-dip galvanization
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UV-resistant coating (ANSI 70 Gray or custom color)
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Stainless steel hardware available
5. ANSI Standard Mounting
Compatible with pole installations across:
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EE.UU.
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Canadá
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México
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Brasil
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Argentina
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Chile
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Peru
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Colombia
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Philippines
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Caribbean islands
6. Superior Electrical Performance
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Low impedance
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Regulación de tensión estable
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Low noise
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Strong short-circuit withstand capability
7. Customizable Configuration
Energy Transformer provides full OEM customization:
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Primary voltage
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Secondary voltage
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HV/LV bushings
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Tap changer ±2.5%, ±5%, ±10%
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Surge arresters
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Nameplate design
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Loss values
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Color and hardware specifications
Learn More:50 kVA Electrical Pole Transformer | Oil-Immersed Overhead Unit – 22.9kV to 220/127V

Aplicaciones
Residential Power Distribution
The 37.5 kVA unit is ideal for supplying single-family homes, small residential clusters, and rural housing areas. Its single-phase 120/240 V output is fully compatible with North American residential systems.
Rural Electrification
Commonly used by utilities and government electrification programs for:
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Remote villages
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Agricultural households
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Mountain communities
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Island grids
Light Commercial Loads
Stable and reliable for:
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Pequeños comercios
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Oficinas
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Granjas
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Workshops
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Remote facilities
Agricultural Systems
Suitable for agricultural loads such as:
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Water pumps
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Irrigation systems
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Lighting circuits
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Storage barns
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Livestock operations
Temporary & Construction Sites
Frequently used by contractors and EPC companies for:
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Housing development projects
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Small industrial sites
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Off-grid and semi-grid installations
Compatibilidad con el mercado
United States
Primary voltages commonly used:
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13.2 kV
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7.62/13.2 kV
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12,47 kV
Secundaria: -
120/240 V bifásico
Meets DOE energy efficiency requirements.
Canadá
Compatible with CSA requirements and Canadian grid configurations.
México
Widely used in CFE networks with:
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13.8 kV primary
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240 V secondary
Brazil & Argentina
Supports voltage classes:
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13.8 kV
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13.2 kV
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7.62 kV
Other Countries
Flexible configurations for:
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Peru
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Bolivia
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Chile
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Panama
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Philippines
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Caribbean regions
¿Por qué elegir el transformador de energía?
1. Leading Manufacturer & Supplier
Energy Transformer specializes in single-phase pole-mounted transformers, serving both North and South American markets. We produce thousands of units monthly and support utility procurement, wholesale distribution, and custom OEM production.
2. Factory-Direct Pricing
Competitive pricing without middlemen:
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Large-scale automation
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Premium materials
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Strict QC and testing
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Consistent supply for large projects
3. International Certifications
Compliant with:
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ANSI C57
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IEEE
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DOE Efficiency
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CSA (Canada)
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IEC
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RETIE (Colombia)
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LATAM utility requirements
4. Fast Production & Shipping
Our efficient production process and global logistics enable:
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Shorter manufacturing cycles
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Reliable export packaging
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Fast delivery to the Americas and Europe
5. Custom Engineering Support
We can produce transformers tailored to the exact specifications of:
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Servicios
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Contratistas EPC
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Renewable energy projects
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Rural grid expansion programs
6. Long-Term Reliability
Each unit undergoes:
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Routine tests
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Type tests
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Dielectric tests
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Oil quality tests
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Load/no-load loss testing
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HV/LV withstand tests
Ensuring long-term performance under real-world grid conditions.

Advantages of a 37.5 kVA Pole-Mounted Transformer
Cost-Effective
Appropriate for low-density areas, reducing unnecessary capacity and saving installation costs.
Optimized for Rural & Residential Use
Its 37.5 kVA rating is ideal for typical household loads, air conditioning, HVAC, and small motors.
Easy Installation
Lightweight and quick for utility technicians to mount on wooden or concrete poles.
Maintenance Friendly
Oil level gauges, pressure relief, and corrosion-resistant design simplify long-term maintenance.
Long Lifespan
With proper installation and minimal maintenance, service life exceeds 25–35 years.
Ordering Options
Energy Transformer supports:
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Wholesale procurement
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Utility supply contracts
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OEM branding
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Long-term framework agreements
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Custom voltage configurations
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Project-specific manufacturing
Documentation available:
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Test reports
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Nameplate drawings
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Packing list
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Certificate of Origin
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Compliance certificates
Conclusión
En 37.5 kVA Electric Pole Transformer from Energy Transformer is a reliable, efficient, and cost-effective solution for overhead single-phase distribution networks across North and South America. Built with high-quality materials, advanced insulation systems, and ANSI-standard construction, it delivers long-term stability for residential, rural, agricultural, and commercial applications.
Energy Transformer stands as a trusted manufacturer, supplier, wholesale exporter, and OEM provider, delivering high-performance pole-mounted transformers tailored to the needs of modern electric utilities.
If you require bulk purchases, custom specifications, or specialized configurations for your project, Energy Transformer is ready to support you with competitive pricing, fast delivery, and expert engineering service.


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