High-voltage switchyards, motor control centers (MCC), automation, and preventive maintenance
The electrical engineering division covers the entire lifecycle of industrial and commercial power systems: design and construct, testing and commissioning, automation, and ongoing planned maintenance.
Scope includes high-voltage switchyards, transformers, motor control centers (MCC), variable speed drives (VFD), PLC automated sensor loops, building electrical services, and energy-saving power factor correction.
We partner with leading global electrical manufacturers (ABB, Schneider Electric, WEG, Siemens) to ensure top-tier reliability across industrial and mining installations.
- Voltage Coverage
- LV, MV & High-Voltage (Switchyards & Power Distribution)
- Compliance Code
- IEC 60364 / IEEE (EPRA Class A Registered)
- Automation & Drives
- PLC, SCADA & VFDs (Automated Motor Control Centers)
- Testing Equipment
- Calibrated Meggers (Insulation & Earth Loop Testing)
Electrical Engineering & Instrumentation — Technical Portfolio
Authentic high-resolution documentation from Green Ngoria operations, field sites, and technical delivery across East Africa. Click any photo to zoom in up to 2.5x with full pixel clarity.
High-Voltage Switchyard
High-voltage switchyard and substation transformer infrastructure.
Distribution Board Cabling
Industrial distribution board installation and precision cabling.
Plant Control Panels
Plant control panels and automated instrumentation loops.
Testing & Commissioning
Testing, commissioning, and preventive maintenance diagnostics.
Technical Scope & Certified Deliverables
Electrical Systems Scope
- Motor Control Centers (MCC) & AutomationIEC 61439 / IEC 61131
Form 4 segregated switchboards with integrated motor protection and PLC logic.
- Substation & Power Factor CorrectionIEEE 519 / IEC 60076
Oil/dry type transformers and automatic capacitor banks maintaining PF > 0.95.
- Grounding & Lightning ProtectionBS 7430 / IEC 62305
Copper mesh grounding networks with chemical earth rods ensuring safe fault dissipation.
Scope of Work — Official Company Profile
- Electrical design, load calculations, and Single Line Diagram (SLD) modeling
- High-voltage substation and step-down transformer installation
- Motor Control Centers (MCC) and Variable Frequency Drive (VFD) starter cabinets
- PLC automation, instrumentation, flowmeter loops, and emergency interlocks
- Heavy industrial cable tray routing, armored cable pulling, and glanding
- Lightning protection grids and low-resistance earth grounding systems (< 1.0 Ω)
- Comprehensive testing: insulation resistance (Megger), loop impedance, and thermal imaging
Phase-by-Phase Execution Pathway
Load Calculation & Schematics Design
Calculate maximum demand, design Single Line Diagrams (SLD), and size transformers and cables.
- Single Line Diagrams
- Cable Sizing Schedule
Containment, Cabling & Panel Mounting
Install cable trays, pull armored power cables, mount MCC cabinets, and wire field instruments.
- Cable Pulling Logs
- Panel Termination Sheets
Testing, Meggering & Cold Loop Check
Perform high-voltage insulation tests, verify earth resistance, and simulate PLC control logic.
- Insulation Megger Test Sheets
- Loop Check Dossier
Energization & Hot Commissioning
Energize substation under utility supervision, verify phase rotation, and conduct load run.
- Electrical Commissioning Certificate
- As-Built Schematics
Design Criteria & Technical Parameters
| Parameter / Specification | Standard Design Criteria | Application & Engineering Notes |
|---|---|---|
| Earth Grounding Resistance | < 1.0 Ohm across main earth grid | Protects sensitive electronic PLC equipment |
| Insulation Resistance (Megger Test) | > 100 Megaohms at 1000V DC test voltage | Mandatory before any cable energization |
| Power Factor Target | Cos φ ≥ 0.95 maintained automatically | Eliminates utility reactive power penalty surcharges |
Standing Quality & EHS Commitments
- Health, Safety & Environment
- Environment, Health and Safety is given absolute priority in all projects the company undertakes, adhering strictly to NEMA EMCA Cap 387, OSHA 2007, and environmental mining regulations.
- Independent Quality Control
- Recognised quality-control institutions and accredited materials consultants are contracted to perform batch testing that verifies high product quality on every site.
- Regional Delivery Footprint
- Green Ngoria operates across Kenya, Tanzania, Uganda, Rwanda, Burundi, with corporate headquarters at Tatu City, Kijani Ridge, Nairobi.
Frequently Answered Questions
Does Green Ngoria provide Class A EPRA certified electrical installations?
Yes. Our electrical engineers and installation technicians hold full statutory licensing with EPRA and local utility authorizations.
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Discuss an Electrical Package
Reach our customer care on +254 704 160 431 or email customercare@greenngoria.com — or send the details through the request for quotation form and our engineering team will respond with a full proposal.
Customer care & enquiries
Director lines & emails: Leadership Profiles →
Tatu City, Kijani Ridge, Nairobi, Kenya