Reliable High-Performance Power for Industrial, Commercial & Utility Networks
The 750 kVA three phase oil-filled distribution transformer from PowerNex is engineered for efficient, reliable medium voltage to low voltage conversion across utility, industrial, and commercial power systems. Designed to meet ANSI and IEC standards, this transformer delivers stable, safe, and high-quality voltage conversion for:
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Industrial plants and manufacturing facilities
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Commercial complexes and large buildings
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Residential and infrastructure power distribution
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Renewable energy connections and substation networks
Oil-immersed and robustly engineered, the transformer ensures long service life, excellent thermal performance, and overload capacity, even in demanding outdoor environments. Its utility-grade design makes it suitable for underground or pad-mounted installations, providing reliable power where stability and safety are critical.
Technical Specifications
| Parameter | Specification |
| Power Rating | 750 kVA (Customizable: 100 kVA–10,000 kVA) |
| Transformer Type | Three Phase Oil-Filled / Oil-Immersed Distribution Transformer |
| Primary Voltage | 13.8 kV / 13.2 kV / 12.47 kV (Optional: up to 35 kV) |
| Secondary Voltage | 480Y/277 V or 208Y/120 V (Custom Configurations Available) |
| Connection | Delta–Wye or Wye–Wye, configurable for specific applications |
| Frequency | 50 / 60 Hz |
| Cooling | ONAN (Oil Natural Air Natural), oil-immersed |
| Standards | ANSI, IEEE, IEC, DOE Efficiency |
| Certifications | UL, cUL, CSA, CE (Optional) |
| Insulation Class | Class A / Class B (Optional) |
| Enclosure | Outdoor pad-mounted steel tank, tamper-resistant |
| Applications | Utility distribution, industrial, commercial, residential power networks, renewable energy |
This technical specification table highlights essential parameters for engineering, procurement, and project planning. PowerNex provides customized kVA ratings (100–10,000 kVA), primary voltages up to 35 kV, and flexible secondary voltage configurations, supporting OEM projects, bulk orders, and large-scale utility deployments.
Key Features & Benefits
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High Efficiency & Energy Savings: Optimized core and windings reduce no-load and load losses, improving operational efficiency.
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Robust Oil-Immersed Design: Provides excellent thermal stability, overload tolerance, and extended service life.
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Reliable Voltage Conversion: Stable 480Y/277 V or 208Y/120 V output from medium voltage feeders.
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ANSI & IEC Compliance: Suitable for North American and international utility, commercial, and industrial applications.
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Durable Construction: Corrosion-resistant steel tank, high-quality insulation, and rugged bushings for outdoor installation.
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Low Maintenance: Reduced maintenance requirements ensure long-term operational reliability.
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Versatile Applications: Utility, commercial, industrial, renewable energy, and residential distribution networks.
Transformer Drawings & Engineering Documentation
PowerNex offers comprehensive technical drawings and schematics for all 750 kVA oil-filled distribution transformers:
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Dimensional drawings for site planning and installation
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Electrical wiring and connection schematics
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3D CAD models for engineering integration
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Custom layouts for OEM, EPC, or utility projects
Technical drawings are available in PDF, CAD, and DXF formats, ensuring seamless integration into engineering and procurement processes.
Get Your Customized SolutionComponents & Construction
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Premium Core: Low-loss, grain-oriented silicon steel for high efficiency.
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Copper or Aluminum Windings: Optimized for thermal and electrical performance.
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Oil Tank & Conservator: High-quality steel tank with insulating oil for cooling and dielectric protection.
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Bushings & Insulators: ANSI / IEC compliant for primary and secondary connections.
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Cooling System: Natural oil circulation with air cooling (ONAN), optional radiators for high-load environments.
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Protection Devices: Pressure relief, conservator, and optional thermal sensors for temperature monitoring.
Detailed Project Case Study – South American Industrial Upgrade
Location: Brazil
Application: Industrial medium-to-low voltage distribution upgrade
Transformer Supplied: 750 kVA Three Phase Oil-Filled Distribution Transformer, 13.2 kV to 480Y/277 V
Challenge: The plant required a reliable, ANSI/IEC compliant transformer to feed critical production equipment and control systems with minimal maintenance and high thermal efficiency.
Solution: PowerNex supplied a 750 kVA oil-immersed transformer, complete with technical drawings, installation support, and compliance with ANSI/IEC standards.
Outcome:
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Stable low voltage supply to critical machinery
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Long-term reliability with minimal maintenance
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Seamless integration into the plant’s existing distribution system
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Compliance with international safety and quality standards
Leading Manufacturer & Advanced Production Facility
PowerNex is a leading transformer manufacturer in China, combining decades of industry experience with state-of-the-art production facilities and a strong commitment to research and development. Our factory is equipped with precision winding machines, automated core assembly lines, modern oil filling and insulation equipment, and advanced testing laboratories, ensuring every oil-filled transformer meets the highest ANSI, IEC, UL, and CE standards.
Our experienced R&D and engineering team continually develops innovative transformer designs, optimizing for energy efficiency, thermal performance, noise reduction, and long-term reliability. From prototype design to full-scale production, every unit undergoes strict quality control and performance verification, guaranteeing consistent, high-quality transformers for industrial, commercial, and utility applications worldwide.
With a workforce of skilled engineers, technical operators, and quality assurance specialists, PowerNex has successfully delivered customized transformer solutions for global projects across North and South America, Europe, the Middle East, and Southeast Asia. Our combination of technical expertise, cutting-edge manufacturing, and global project experience ensures that clients receive reliable, high-performance transformers tailored to their specific requirements.
Applications
Utility Distribution: Ideal for substations, urban and rural networks, and public utility grids, providing stable voltage conversion and reliable power supply for municipal and industrial feeders.
Industrial Plants: Suitable for manufacturing facilities, heavy industry, and processing plants, supporting critical machinery, control panels, and automation systems with high reliability and thermal performance.
Commercial Complexes: Designed for office buildings, malls, hospitals, and data centers, ensuring safe, stable low-voltage supply for lighting, HVAC, elevators, and IT equipment.
Infrastructure & Renewable Energy: Perfect for airports, railway stations, solar and wind farms, providing efficient medium-to-low voltage conversion and grid stability.
Residential & Rural Communities: Suitable for suburban and rural electrification, farms, and small commercial loads, delivering continuous and reliable power in areas with fluctuating demand.
Get Your Customized SolutionGlobal Supply, Manufacturing & Customization
PowerNex is a leading China-based transformer manufacturer, supplier, and wholesale exporter, delivering oil-filled distribution transformers globally. Our supply network includes:
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North America: USA, Canada, Mexico
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South America: Brazil, Argentina, Venezuela
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Oceania: Australia
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Southeast Asia: Indonesia, Malaysia, Philippines
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Middle East: UAE, Saudi Arabia
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Europe & Russia: Germany, France, Russia
Custom Options:
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Capacity: 100 kVA – 10,000 kVA
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Primary voltage: up to 35 kV
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Secondary voltage: multiple low-voltage configurations
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Enclosures, insulation, and bushings customized for site and OEM requirements
We support OEM customization, bulk supply, distributor partnerships, and long-term projects, ensuring factory-direct pricing, professional support, and reliable delivery worldwide.
Certifications & Standards
PowerNex 750 kVA transformers can be manufactured to meet:
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ANSI / IEEE standards for North America
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IEC international ratings for global projects
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CE certification for Europe
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UL / cUL / CSA for North American applications
Optional certifications can be added based on project specifications and market requirements.
Why Choose PowerNex 750 kVA Transformers
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High efficiency, energy-saving, and low-loss design
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Oil-immersed, robust, and durable for long-term operation
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ANSI / IEC compliant for global installation
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OEM customization and bulk supply available
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Wide range of capacities and voltage options (100 kVA – 10,000 kVA, up to 35 kV)
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Global shipping and technical support for industrial, commercial, and utility projects
Contact PowerNex
For sourcing three phase oil-filled distribution transformers, including 750 kVA, 500 kVA, 1000 kVA, 1500 kVA, 2000 kVA, 2500 kVA, 3000 kVA, 5000 kVA, or customized medium voltage to low voltage solutions for utility, industrial, or commercial projects, PowerNex provides:
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Technical datasheets, CAD drawings, and specifications for all standard and custom capacities
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Engineering consultation and project support to ensure correct transformer selection
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Competitive pricing and bulk supply options for distributors and EPC contractors
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OEM customization, voltage configurations, insulation classes, and global shipping
PowerNex – Your trusted global transformer manufacturer, supplier, and exporter, delivering reliable medium voltage to low voltage distribution transformers to USA, Canada, Brazil, Argentina, Australia, Indonesia, Malaysia, Philippines, UAE, Saudi Arabia, Russia, Germany, France, and other international markets.
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