The Ultimate Guide to 112.5kVA Transformer
Jan 22, 2026
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Are you planning a power distribution project that needs a medium-capacity, high-reliability transformer?
As a leading power equipment manufacturer with 18+ years of expertise, GNEE specializes in engineering and supplying 112.5kVA Transformer models that meet global standards (IEC, CE, GB). Our factory-direct approach ensures competitive pricing, on-time delivery, and tailored solutions for residential, commercial, and industrial needs. Whether you need oil-immersed or dry-type variants, we provide end-to-end support from design to after-sales.

GNEE 112.5kVA Transformer Factory Display
What Is a 112.5kVA Transformer and Its Core Purpose?
A 112.5kVA Transformer is a medium-capacity power device designed to convert high voltage (e.g., 10kV/20kV) to low voltage (0.4kV) for safe, efficient power distribution. The "112.5kVA" rating refers to its apparent power capacity-enough to supply electricity to 400–500 households, a mid-sized shopping mall, or a small manufacturing plant.
Unlike smaller 50kVA models, it handles higher loads without overheating, making it ideal for projects with growing power demands. Key purposes include stabilizing voltage fluctuations, reducing energy loss (compliant with IE2 efficiency standards), and ensuring consistent power supply for sensitive equipment like HVAC systems, industrial motors, and commercial lighting.
Key Types of 112.5kVA Transformer for Different Scenarios
GNEE offers two main types of 112.5kVA Transformer to match diverse installation environments and project needs:
112.5kVA Oil-Immersed Transformer
Best for Outdoor Use: Features a corrosion-resistant steel tank filled with insulating oil for efficient heat dissipation (ONAN cooling method). Withstands harsh weather (rain, UV, -30°C to 45°C) and has a 25+ year service life.
Low Maintenance: Sealed oil tank minimizes evaporation and contamination, requiring only annual oil sampling and visual checks.
112.5kVA Dry-Type Transformer
- Ideal for Indoor Use: Uses air cooling (AN or AF method) and fire-retardant insulation materials, making it safe for shopping malls, data centers, and residential basements.
- Quiet Operation: Runs at ≤50dB (quieter than a conversation), suitable for noise-sensitive areas.

112.5kVA Transformer Technical Specs Chart
Technical Specifications of GNEE 112.5kVA Transformer
GNEE's 112.5kVA Transformer adheres to strict quality standards, with standardized specs that can be customized for specific project needs:
| Parameter | Oil-Immersed Variant | Dry-Type Variant |
|---|---|---|
| Rated Capacity | 112.5kVA | 112.5kVA |
| Primary Voltage | 10kV/20kV (customizable) | 10kV/20kV (customizable) |
| Secondary Voltage | 0.4kV (3P4W) | 0.4kV (3P4W) |
| Cooling Method | ONAN (Oil Natural Air Natural) | AN (Air Natural) / AF (Air Forced) |
| Insulation Class | Class A | Class F |
| Temperature Rise | ≤55K (top oil) / ≤80K (winding) | ≤100K (winding) |
| Protection Level | IP23 | IP30 |
| Weight | Approx. 1200kg | Approx. 950kg |
The versatility of 112.5kVA Transformer makes it a go-to solution for multiple sectors:
- Residential Complexes: Powers mid-sized communities (400–500 households), supporting simultaneous use of air conditioners, refrigerators, and home electronics.
- Commercial Spaces: Supplies energy to shopping malls, office buildings, and hotels-handling mixed loads from lighting, elevators, and POS systems.
- Light Industry: Supports small factories (e.g., textile workshops, food processing plants) with stable power for production machinery.
- Infrastructure: Provides auxiliary power for railway stations, water treatment plants, and road toll stations in remote areas.
Why Choose GNEE's 112.5kVA Transformer?
As a trusted 112.5kVA Transformer manufacturer, GNEE offers unique advantages to meet your project goals:
- Global Certifications: All models comply with IEC, CE, and GB standards, ensuring compatibility with grids worldwide.
- Customization: Adjust voltage, cooling method, and tank design to match your installation environment (e.g., extreme weather, limited space).
- Quality Control: Raw materials (copper windings, silicon steel sheets) undergo third-party testing; every transformer passes 8+ inspections before delivery.
- After-Sales Support: 5-year warranty for core components, 24/7 technical assistance, and fast spare parts delivery (within 3 working days).
Conclusion
GNEE's 112.5kVA Transformer is a reliable, efficient solution for medium-capacity power distribution projects-whether you need an outdoor oil-immersed model or an indoor dry-type variant. Our factory expertise, global certifications, and customized support ensure your project runs smoothly from start to finish.
To explore specific models, get a detailed quote, or request a technical datasheet, contact us now-and visit our [112.5kVA Transformer product page] to view real-world application cases and customer testimonials. We're ready to tailor a power solution that fits your exact needs.

