Extra High Tension Transformer 20kV 0.433kV 400 To 1500kVA Oil Immersed Capacitor Transformer Good Heat Dissipation Low Temperature Rise Strong Anticorrosion for Africa Power Construction
アフリカの電力プロジェクト向けの20kV/0.433kV油入変圧器（400～1500kVA）。優れた放熱性、低い温度上昇、C3/C4/C5 腐食保護が特徴です。産業用および公共用配電用のカスタマイズ可能な銅/アルミニウム巻線。
20kV oil immersed transformer
,400-1500kVA power distribution transformer
,high tension transformer for Africa
The Extra High Tension Transformer 20kV/0.433kV (400–1500kVA) is a robust oil-immersed capacitor transformer engineered for Africa’s diverse power construction projects, including new distribution lines, industrial extensions, and municipal grid upgrades.
It delivers stable voltage conversion, excellent thermal performance, and long-lasting anticorrosion protection, ensuring consistent service even in regions with elevated temperatures, outdoor exposure, and unpredictable load profiles.
This transformer is built to support dependable power distribution across challenging environments while maintaining excellent operational stability and long service life.
- Efficient Heat Dissipation for Continuous Duty
Enhanced radiator configuration enables rapid heat exchange, ensuring stable output under sustained loading conditions.
- Low Temperature Rise for Longer Lifespan
Optimized coil structure and oil circulation reduce temperature rise, improving durability and reducing stress on internal components.
- Strong Anticorrosion Structure
Reinforced coating system and sealed steel tank resist humidity, sand, dust, and varied African climates, extending outdoor service life.
- Reliable Step-Down Performance (20kV→0.433kV)
Ensures smooth and predictable voltage transformation for power projects requiring stable distribution to commercial, residential, and light-industrial endpoints.
- Engineered for Harsh Field Conditions
Rugged mechanical build and stable insulation performance make it suitable for remote sites with fluctuating supply and environmental challenges.
| Parameter | Specification |
|---|---|
| Rated Capacity | 400–1500 kVA |
| Primary Voltage | 20kV |
| Secondary Voltage | 0.433kV |
| Frequency | 50Hz / 60Hz |
| Phase | Three-phase |
| Cooling Method | ONAN |
| Vector Group | Dyn11 |
| Tap Changer | Off-circuit tap changer |
| Tap Range | ±2×2.5% |
| Insulation Level | Compliant with IEC 60076 |
| Installation Type | Outdoor |
| Protection Level | Standard sealed tank |
| Mounting Method | Ground-mount or pole-mount optional |
Many African regions experience load spikes, high daytime temperatures, and inconsistent distribution voltage during construction and network expansion projects. These conditions can lead to equipment overload, irregular output, and shortened transformer lifespan.
Our transformer provides a tailored solution:
- Optimized oil flow and heat dissipation maintain stable operation during peak daytime temperatures common across Africa.
- Low temperature rise design reduces internal thermal stress during voltage fluctuations.
- Reinforced sealing and anticorrosion treatment protect against environmental impact during long-term outdoor use.
- Consistent step-down performance ensures reliable supply to construction sites, commercial loads, and newly developed distribution branches.
This allows power construction teams to deploy equipment that remains stable even in demanding field environments.
- How suitable is this model for continuous outdoor exposure?
It is built specifically for outdoor power construction, using a sealed tank, protective coating, and corrosion-resistant treatment. It performs reliably in regions with strong sunlight, wind, humidity, or dust.
- Can this transformer handle voltage fluctuations commonly found in African grids?
Yes. The insulation system and thermal design are engineered to remain stable under fluctuating input voltage or irregular load curves, ensuring dependable secondary output.
- Is periodic maintenance required?
Very minimal. Only basic oil level checks and routine inspections are needed, thanks to its durable oil-immersed cooling and low temperature rise structure.
- Can you customize the configuration for different project needs?
Absolutely. Capacity, tap settings, vector group options, and installation method can be tailored according to EPC project requirements or local utility standards.
We are a professional power equipment manufacturer specializing in distribution transformers, power transformers, and customized energy solutions for global markets.
With advanced production lines, strict quality control, and compliance with IEC 60076, we supply reliable transformers for Africa’s utility grids, industrial plants, rural electrification, and EPC construction projects.
Our engineering team provides technical support, customization services, and long-term supply capability, ensuring stable delivery and high-performance products for demanding applications.
Get a fast quotation and technical support for your next Africa power construction project — contact us now!
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