110kV 30MVA Power Transformer for Ethiopia Belt and Road Industrial Park
09-09 2026 | By:
110kV 30MVA Power Transformer for Ethiopia Belt and Road Industrial Park
Project Location: Ethiopia
Project Type: Belt and Road Initiative (BRI) Industrial Park
Application: Industrial Power Distribution
Equipment: 110kV 30MVA Oil-Immersed Power Transformer
Installation: Outdoor
Winding: 100% Copper
Tap Changer: On-Load Tap Changer (OLTC)
Project Overview
As part of the Belt and Road Initiative (BRI) cooperation in Ethiopia, ZTELEC YUGUANG supplied a 110kV 30MVA oil-immersed power transformer for an industrial park power supply project.
The project required a reliable transformer solution capable of operating under high-altitude conditions, grid voltage fluctuations and demanding industrial loads. The transformer was customized with 100% copper windings, reinforced insulation and an On-Load Tap Changer (OLTC) to provide stable and reliable power distribution.
Transformer Solution for Ethiopia BRI Project
The industrial park required stable medium- and high-voltage power to support continuous industrial production. Considering the local operating environment, the transformer design focused on four key requirements:
- High-altitude operation up to 2,500 m
- Stable voltage regulation through OLTC
- High short-circuit withstand capability with copper windings
- Enhanced insulation and outdoor protection for reliable long-term operation
High-Altitude Design
The transformer is designed for operation at an altitude of up to 2,500 m. Enhanced insulation and creepage distance help compensate for reduced air density and dielectric strength in high-altitude areas.
On-Load Tap Changer for Grid Stability
The integrated On-Load Tap Changer provides a regulation range of 110kV ±8 × 1.25%, helping maintain stable output voltage when the industrial park experiences grid voltage fluctuations and changing loads.
100% Copper Windings
The transformer uses high-conductivity copper windings to reduce electrical losses and improve thermal performance. The reinforced winding structure also provides strong mechanical resistance under short-circuit conditions, making it suitable for industrial power applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Project | Ethiopia BRI Industrial Park |
| Transformer Type | Oil-Immersed Power Transformer |
| Rated Capacity | 30 MVA / 30,000 kVA |
| Rated Voltage | 110 kV / 35 kV |
| Frequency | 50 Hz |
| Phase | 3 Phase |
| Winding Material | 100% Copper |
| Cooling Method | ONAN / ONAF |
| Tap Changer | On-Load Tap Changer (OLTC) |
| HV Tapping Range | 110 ±8 × 1.25% |
| Impedance Voltage | Approx. 10.5% |
| HV AC Withstand | 230 kV |
| Lightning Impulse Withstand | 550 kV |
| Creepage Distance | ≥31 mm/kV |
| Top Oil Temperature Rise | 55 K |
| Winding Temperature Rise | 65 K |
| Installation | Outdoor |
| Design Altitude | ≤2,500 m |
Reliable Power Infrastructure for Belt and Road Projects
This Ethiopia project demonstrates ZTELEC YUGUANG’s capability to provide customized power transformer solutions for Belt and Road infrastructure projects.
By combining high-voltage transformer manufacturing, customized engineering and project-oriented technical support, ZTELEC YUGUANG provides reliable power equipment for industrial parks, factories, mining projects, utility substations and other power infrastructure projects across Africa.
The 110kV 30MVA transformer provides a reliable foundation for industrial power distribution and supports the development of modern industrial infrastructure under the Belt and Road Initiative.
You may also find these interesting:
