8 Sets 400kVA 11kV/0.69kV Transformers for Ghana Solar PV Project
Project Overview
New Electric Power supplied 8 sets of 400kVA oil-immersed transformers to a local electrical equipment distributor in Ghana for a solar photovoltaic (PV) project.
The transformers are rated at 11kV/0.69kV and use an ONAN cooling system, providing reliable medium-voltage transformation and power distribution for the solar energy system.
For the distributor, consistent specifications across multiple transformer units, reliable manufacturing quality and secure export packaging were important considerations for the project.
Project Requirements
| Item | Specification |
|---|---|
| Application | Solar PV Project |
| Market | Ghana, Africa |
| Quantity | 8 Sets |
| Rated Capacity | 400kVA / Set |
| Primary Voltage | 11kV |
| Secondary Voltage | 0.69kV |
| Cooling Method | ONAN |
| Transformer Type | Oil-Immersed Transformer |
| Customer Type | Distributor |
New Electric Solution
Based on the project requirements, New Electric manufactured 400kVA 11kV/0.69kV ONAN oil-immersed transformers for the customer's solar PV application.
The transformers feature a robust oil-immersed structure for effective natural cooling and reliable continuous operation. The internal magnetic circuit, windings and insulation system are manufactured according to the specified electrical requirements to support stable voltage transformation and power distribution.
As this was a multi-unit order, New Electric maintained consistent manufacturing specifications across all 8 sets, helping the distributor simplify project installation, replacement and future maintenance.
Factory Testing & Quality Control
Before shipment, the transformers underwent routine factory inspection and testing to verify their electrical and mechanical performance.
The inspection process included key items such as:
- Winding resistance
- Voltage ratio
- Insulation performance
- No-load current and losses
- Load-related performance
- Oil sealing and overall mechanical condition
Each unit was inspected before being prepared for export.
Export Packaging
The supplied transformers were individually protected with wooden export crates for international transportation.
As shown in the shipment photos, the equipment was securely positioned and enclosed in protective wooden packaging before dispatch. This packaging method helps reduce the risk of impact, contamination and handling damage during ocean transportation and subsequent unloading.
Project Application
The transformers are used in the medium-voltage electrical system of the Ghana solar PV project, providing voltage transformation between the 11kV network and the 0.69kV side of the solar power system.
The 11kV/0.69kV configuration provides a suitable interface for projects where solar generation equipment requires a dedicated transformer for medium-voltage power distribution and grid-side connection.
Project Value
This project demonstrates New Electric Power's capability to supply customized medium-voltage oil-immersed transformers for solar PV projects in Africa.
The successful delivery of 8 sets of 400kVA 11kV/0.69kV ONAN transformers also demonstrates New Electric's ability to support distributors with consistent multi-unit production, factory testing and export-ready packaging.
New Electric continues to provide transformer solutions for solar PV, commercial, industrial and utility distribution applications across international markets.
