Contract 23033588/2023

Al Ajami MV Substation — DC Battery System Replacement (OD 23033588)

Scope & Outcome

Rabbat Electric renewed the DC auxiliary power system at the Al Ajami medium-voltage substation to restore reliable control-power for protection relays, trip/close coils, and SCADA/RTU equipment. The legacy batteries suffered capacity loss and could no longer guarantee trip-duty or the required autonomy during outages.

Working under a humanitarian infrastructure program, we executed a fast, safe change-out of the complete battery bank and associated hardware. The upgraded DC system reduces nuisance trips, improves breaker operability, and safeguards protection performance during grid disturbances—directly supporting service continuity for the local community.

Project Info

Execution Date

2023

Location

Daraa, Syria — Al Ajami MV Substation

Client

ICRC — International Committee of the Red Cross

Delivery Model

Sub-contractor to UCEP (our Lebanese sister company); Ingenious Network FZC — Main Contractor

Deliverables

Site survey and as-found assessment of the DC system (capacity test, charger health, wiring condition).
Battery bank sizing & selection to meet autonomy and trip-duty requirements; rack refurbishment/replacement.
Removal of legacy cells; installation & interconnection of new cells with proper lugging, terminations, and labeling.
Verification of DC distribution to protection relays, breaker coils, RTU/SCADA, and auxiliaries; polarity/continuity checks.
Charger settings review (float/equalize), functional tests, and monitored charge/discharge (load) testing.
Commissioning & handover with test records, as-built notes, and maintenance recommendations.
Basic operator training on battery care, hazard controls, and routine inspection.
Environmentally responsible collection/disposal of removed batteries via approved channels.

Previous Project

Next Project