EN
Long-Term Distribution Partnership
Project Overview
In Port Harcourt, Rivers State, Nigeria, persistent national grid instability and decades of underinvestment have left households and small businesses reliant on expensive diesel generators. A leading local distributor partnered with TSTY Electric to supply reliable, standardized distribution transformers that meet the city’s unique voltage requirements—while ensuring consistent product quality and on-time delivery across a multi-year framework agreement.
Critical constraints included:
Frequent grid blackouts forcing end-users to depend on off-grid solutions
Non-standard low-voltage demands (e.g., 0.4 kV systems fed from 11 kV or 33 kV networks) requiring flexible transformer configurations
High expectations for durability in humid, coastal environments with limited maintenance access
Need for stable supply chain to support phased urban grid upgrades without project delays
TSTY Electric’s Customized Solution
TSTY established a dedicated production lane for the Nigerian market, delivering a scalable portfolio of oil-immersed distribution transformers engineered for resilience, compatibility, and rapid deployment—enabling our partner to reliably serve thousands of residential and commercial customers across the Niger Delta region.
Core Technical Adaptations
Full copper windings across all ratings to ensure longevity and low losses under continuous load
Dual primary voltage options (11 kV & 33 kV) with standardized 0.4 kV secondary—allowing seamless integration into both legacy and upgraded feeders
Coastal-environment protection: Enhanced sealing, corrosion-resistant coatings, and moisture-resistant insulation for high-humidity operation
Standardized platform design enabling quick replacement and inventory simplification for the distributor
Equipment Scope Delivered
Equipment
Rating
Quantity
Key Features
Distribution Transformer
100 / 200 / 300 / 400/
500 / 750 / 1000 kVA
11/0.4 kV or 33/0.4 kV
Ongoing annual supply
• Full copper
• Oil-immersed
• IEC 60076 compliant
• Standardized mounting &
bushing layout
*All units passed third-party type testing per regional requirements prior to shipment.
Engineered for Africa, Validated Globally
This long-term partnership goes beyond transactional supply—it reflects TSTY’s commitment to building resilient local energy ecosystems through trusted channel partners. Four capabilities made sustained success possible:
Market-Tailored Product Portfolio
TSTY developed a unified transformer family covering 100–1000 kVA with dual HV options—giving our Nigerian partner a single-source solution for diverse customer needs, from street-side kiosks to small factories.
Dedicated Production Scheduling
By allocating fixed monthly capacity in its factory, TSTY eliminated lead-time volatility—ensuring the distributor could plan installations, manage cash flow, and meet municipal upgrade timelines with confidence.
Quality Consistency at Scale
Every unit—whether 100 kVA or 1000 kVA—shares the same full-copper core, oil system, and test protocol. This standardization guarantees uniform performance and reduces field failure rates across thousands of installations.
Local Partnership, Global Backing
While delivery is managed through a Nigerian partner, every transformer carries the full weight of TSTY’s global quality system: IEC-compliant design, CNAS-accredited testing, and technical support from TSTY’s Africa-focused engineering team—turning a distributor relationship into a strategic grid modernization alliance.
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