Contract 57/2022

Tishreen GIS Substation — Breaker-Failure Protection Relays

Scope & Outcome

Supply and installation of 22 breaker-failure protection relays at the Tishreen GIS substation, including drawings updates, recommended spares, testing, and operator training. The modernization of the breaker-failure (BF) logic improves fault-clearing dependability and coordination with upstream and downstream protection.

Our team engineered relay applications, verified initiation and timing paths, retrofitted wiring in existing panels, and confirmed interlocks to adjacent bays. The result is a faster, selective BF response that enhances substation safety and availability.

Project Info

Execution Date

2022

Location

Syria

Contractor

Rabbat Electric LLC

Client

Public Establishment for Transmission & Distribution of Electricity (PETDE)

Deliverables

Supply of 22 breaker-failure protection relays with recommended spare parts.
Panel retrofitting, wiring adaptation, labeling, and terminations.
Protection scheme engineering and drawings updates (logic, I/O maps, settings files).
Functional testing (initiation, timers, lockout, intertrips) and end-to-end verification.
Commissioning and handover documentation (as-built drawings, settings, test reports).
Operator and maintenance training on BF logic, alarms, and periodic checks.

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