EN
National Grid Upgrade
Project Overview
In Nouakchott, Mauritania’s national utility (SOMELEC) launched a nationwide distribution network upgrade to improve reliability and reduce technical losses. The project required 200 units of distribution transformers that strictly adhered to local grid specifications, including voltage configuration and no-load and load loss requirements.
Critical constraints included:
Mandatory compliance with Mauritania’s national grid technical annexes
Competitive public tender with strict price-to-performance evaluation
Need for bulk delivery within a single quarter to align with fiscal-year budgeting
Zero tolerance for non-conforming deliveries (risk of disqualification)
TSTY Electric’s Customized Solution
TSTY successfully won the bid by delivering a standardized yet locally compliant transformer package, balancing certification rigor with cost efficiency:
Core Technical Adaptations
Full copper windings ensuring low load losses and long service life
Custom voltage ratio (15/0.4 kV) aligned with SOMELEC’s distribution architecture
Local-language nameplates and documentation meeting tender submission requirements
Pre-certified design based on prior West African deployments (Senegal, Mali), reducing validation time
Equipment Scope Delivered test
Equipment
Rating
Quantity
Key Features
Distribution Transformer
630 kVA, 15/0.4 kV
200 units
Full copper, oil-immersed, IEC 60076-compliant, SOMELEC-approved
*All units passed third-party type testing per regional requirements prior to shipment.
Engineered for Africa, Validated Globally
The Mauritania national grid tender may have specified a standard 630 kVA transformer—but winning and delivering it required far more than off-the-shelf production. TSTY leveraged three Africa-proven capabilities to ensure seamless acceptance:
Local Grid Code Fluency
Our design team pre-aligned the transformer’s voltage ratio, loss profile, and labeling with SOMELEC’s technical annexes—drawing on prior certifications in Senegal and Mali to avoid costly rework.
Bulk Delivery Discipline
By dedicating a production batch and coordinating containerized shipping through Dakar port, we met the utility’s tight fiscal-year deadline without compromising quality control.
Public Tender Readiness
Every unit included bilingual documentation and third-party test reports formatted to tender requirements—eliminating administrative rejection risks common in government bids.
Local Expertise & Global Rigor
This combination of regional knowledge and global execution rigor turned a competitive bid into a long-term framework agreement—and exemplifies how TSTY transforms standard specifications into trusted partnerships across Africa.
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