Abidjan 35kV Substation High Voltage Reactive Power Compensation Project: A Successful Case Study

01 Project Overview
1.1 Project Background

In March 2026, RW Energy successfully delivered and deployed four sets of RWTBBX-35-2500/208.4-BLW high-voltage reactive power compensation devices for the 35kV substation upgrade project across core urban substations in Abidjan, Côte d’Ivoire, with stable and reliable operation confirmed post-installation.

Climate Adaptation Design

Specifically engineered for West Africa’s harsh tropical environment, the equipment integrates IP54-rated cabinets, moisture-heat resistant capacitor banks, and reinforced heat dissipation structures to withstand 22°C–38°C temperatures, 65%–95% humidity, heavy rainfall, and coastal salt fog exposure.

Grid Performance & Intelligence

Functioning as the cornerstone of urban power quality, the system delivers rapid reactive compensation, suppresses voltage flicker and harmonics under dynamic loads, maintains power factor >0.95 under ±12% voltage fluctuations, and features an IEC 61850-compliant intelligent monitoring and O&M platform to reduce line losses and enhance grid reliability.

Client Endorsement & Impact

The solution has earned formal commendation from Côte d’Ivoire National Electricity Company (CI-Energies), validating its critical contribution to strengthening Abidjan’s power security, public welfare, and sustainable economic development.

1.2 Technical Parameters

IAC AFLR 25kA/1s applicable to the metal-enclosed switching compartment

02 Product Assembly
The RWTBBX-35-2500/208.4-BLW high voltage reactive power compensation devices assembly strictly complies with GB/T 11024.1-2019, IEC 60871-1:2014, and other high-voltage standards, executing end-to-end control: Component Screening → Modular Assembly → Electrical Connection → Debugging & Calibration.

• Component Screening: High-voltage capacitors (208.4 kvar/unit), discharge coils, reactors, disconnectors, and surge arresters rigorously screened per 35kV/2500kvar specifications; deep cleaning, anti-corrosion treatment, and silicone-rubber sealing applied to ensure parameter consistency and outdoor resilience.
• Modular Assembly: Capacitor banks securely mounted on hot-dip galvanized steel frames; high-voltage units integrated with bird spikes, composite insulators, and intelligent forced-air cooling; control modules housed in IP54-rated outdoor terminal boxes for structural stability and environmental adaptability.
  
  

• Capacitor Unit Electrical Connection: Primary/secondary wiring executed per engineering diagrams; insulation integrity verified via power frequency withstand test (95 kV/1 min) and partial discharge test (≤10 pC); discharge coils and grounding switches installed to ensure dual-layer operational safety.
• Debugging & Calibration: Grid dynamics simulated for validation; voltage sampling accuracy (±0.5%) and switching timing (≤20 ms) precisely calibrated; harmonic suppression strategies optimized; overvoltage, imbalance, and short-circuit protection functions fully verified for reliable field operation.

03 Inspection & Testing

• Temperature Rise Test: Verifies thermal stability of the RWTBBX-35-2500/208.4-BLW high voltage reactive power compensation devices capacitor bank under continuous rated load (35 kV / 2500 kvar). Standard: IEC 60871-1:2014, GB/T 11024.1-2019
• Environmental Test: Confirms reliability and adaptability under harsh outdoor conditions (5°C to +55°C, 95% RH, IP54-rated dust/sand ingress protection, salt fog exposure). Standard: IEC 60068-2 series, GB/T 2423, IEC 60529
• Harmonic Withstand Test: Validates stable operation under high harmonic stress (THD ≤10%, 3rd–13th harmonics) with no resonance or overheating. Standard: IEEE 519-2022

04 Packaging and Transportation

4.1 Packaging

• Structural Protection: ISPM 15-compliant fumigated wooden crates (skid/frame-type) with steel bases for heavy units; fully wrapped in salt-fog-resistant tarpaulin. Internal securing via EPE pads, straps, desiccants, and humidity cards. Fragile parts (e.g., porcelain bushings) use foam + rigid covers; metal components wrapped in VCI paper—optimized for West Africa’s high humidity and coastal salt fog.
•  Marking: Crates marked with international symbols (“↑”, “Moisture-Proof”, “Handle with Care”), project ID, center of gravity, and destination (Abidjan). Waterproof pouch attached containing bilingual (Chinese/French) packing list, certificate, and installation sketch.
•  Transport Adaptation: Sea freight: dual seals + air-column bags; land transport: reinforced frames + anti-slip pads; oversized units: visible warning labels. Fully compliant with CI-Energies and ECOWAS standards.

4.2 Transportation

• Mode: Direct sea freight from Chinese ports to Abidjan Port in moisture-controlled containers with real-time temperature/humidity monitoring.
• Carrier: Certified logistics partner with West Africa expertise providing door-to-door service—professional lashing, full insurance, Abidjan customs clearance, and inland coordination.

05 On-site Implementation and Summary
5.1 On-site Implementation

Pre-implementation

Conducted precise site survey and in-depth coordination with CI-Energies; delivered hands-on technical training to local personnel; prepared specialized moisture- and corrosion-resistant materials tailored for West Africa’s tropical maritime climate (25–38°C, humidity >85%, salt fog, heavy rainfall).

Arrival & Installation

Upon arrival at Abidjan Port, equipment underwent standardized customs clearance, secure transportation, and protective inspection; followed by professional unloading and installation of four RWTBBX-35-2500/208.4-BLW units at core 35kV substations.

Commissioning

Fine-tuned compensation strategies and harmonic suppression parameters per Abidjan’s urban load profiles; executed 15-day trial operation and joint acceptance with CI-Energies, validating system stability and performance metrics.

Local O&M Setup

Established a dedicated local O&M team onsite; implemented bilingual (Chinese/French) training system and 7×24-hour emergency response protocol to ensure sustained operational reliability and rapid issue resolution.

5.2 Summary

5.3 On-site Implementation Diagram

06 Full Lifecycle Managed O&M Service
End-to-end managed service covering procurement, installation, routine O&M, maintenance, emergency response, and decommissioning. Dedicated engineers ensure closed-loop management, full traceability, and uninterrupted safety for all voltage levels and capacities.
Drawings, manuals, selection guides, installation instructions — Request documentation (lead generation)