BN executed the EPC works for the DGS-N Backup Power Supply project to enhance power reliability and maintain production continuity for critical loads associated with Trains 1 & 2 at the North Degassing Station. The solution introduces two dedicated containerized Local Electrical Rooms (LERs), one serving SS-01 and one serving SS-02, each integrating a new 6.6 kV switchgear system and the auxiliary systems required for safe, autonomous operation.
Under normal conditions, the new 6.6 kV switchgear is supplied from the plant/grid source. If the main source becomes unavailable or unstable, the backup diesel-generator system can be brought into service through the 2.5 MVA step-up transformer. The switchgear control system manages the source-transfer sequence and provides synchronization and coordinated load sharing when parallel operation is required. This automated philosophy is intended to maintain supply to the selected essential process loads and improve continuity of operation for DGS-N Trains 1 & 2.
BN executed the DGS-N Backup Power Supply project at Zubair Oil Field to improve electrical resilience and maintain production continuity for critical loads serving Trains 1 & 2. The project introduced two fully integrated Local Electrical Rooms (LERs), each housing SIEMENS 6.6 kV switchgear together with protection, control, UPS/DC, LV distribution, HVAC, lighting and fire-protection systems. Each switchgear is configured with dual incomers - one from the plant/grid network and one from a 2 MW diesel generator connected through a 2.5 MVA, 0.4/6.6 kV step-up transformer. The automated control scheme provides source transfer, synchronization and coordinated load sharing, while BN delivered the associated MV/LV cabling, protection interfaces, interlocks, earthing, testing and commissioning works for integration with DGS-N Substations 1 and 2.
