Specialized Electrical Engineering Services Across Saudi Arabia
From HV/MV substation commissioning to transformer maintenance, power system analysis, and predictive maintenance — ATCO delivers every service with certified engineers, advanced equipment, and full documentation.
Testing & Commissioning
GIS and AIS substations up to 380 kV — circuit breakers, power transformers up to 500 MVA, protection relays, CTs & VTs, earthing systems, batteries, DC panels, and full system integration & interlocking verification.
Electrical Installation & Retrofitting
Supply and installation of MV/LV switchgear, UPS systems, battery banks, energy meters, motor soft starters, VFDs, and associated electrical components — from site installation through to final commissioning and handover.
Protection Relay Retrofitting
Retrofitting of legacy protection relays on existing GIS and AIS switchgear using Siemens DIGSI 5, ABB, SEL, and other platforms — including control schematic design, modification, and full commissioning documentation.
Operation & Maintenance (O&M)
Routine, preventive, and corrective maintenance for MV/LV switchgear, distribution boards, protection relays, and associated components — covering fault troubleshooting, emergency response, and annual maintenance contracts (AMC).
Power Transformer Maintenance & Overhauling
Insulation resistance, winding resistance, turns ratio (TTR), vector group, and no-load/load loss tests — plus complete internal inspection, refurbishment, oil filtration, and condition assessment for transformers of all ratings.
Cable Fault Location, Termination & Splicing
Advanced diagnostic fault location for MV and LV power cables — combined with professional termination and splicing for substations and industrial networks, ensuring safe and reliable power restoration with minimal downtime.
ETAP & Power System Studies
Short-circuit analysis, load flow studies, harmonic studies, and protection coordination using ETAP — diagnosing hidden system issues, improving power quality, and ensuring your network is stable, efficient, and fully code-compliant.
Industrial & EX LED Lighting
End-to-end LED lighting solutions — from design and supply to installation and commissioning of explosion-proof (EX) and industrial lighting systems including high-bay, floodlighting, street, and fence security lighting.
PONOVO Test Equipment Supply
Authorized PONOVO distributor in Saudi Arabia — supplying protection relay test sets (PW636i, PW866i, L336i), primary injection kits (T1000), and CT/VT analyzers (PCT200Ai, PCT200X) with full training and up to 5-year warranty.
Predictive Maintenance (EXERTHERM)
24/7 continuous thermal monitoring for MCC buckets, busbars, busducts, and switchgear — enabling early fault detection, reducing unplanned failures, extending asset life, and eliminating costly scheduled shutdowns.
Supply & Installation of UPS Systems & Battery Banks
Full supply, installation, and commissioning of UPS systems, battery chargers, and battery banks for critical power backup — ensuring uninterrupted protection and control power for industrial and commercial facilities.