Key Electrical Jobs at MRC
Under contract with MRC (Midland Refinery Company), this project involves the replacement of Fuji low-voltage switchgear and motor control centers (MCC) with new Sivacon S8 switchgear units manufactured by Siemens AG in Leipzig, Germany. The scope includes removing existing equipment, installing new switchgear, and ensuring minimal downtime for refinery operations.This project, under NRC (Northern Refinery Company) contracts, involves the rehabilitation of ten (10) medium-voltage substations, as well as one main substation rated from 33 kV to 11 kV, stepping down further to 3.3 kV and 0.4 kV. The remaining stations are 3.3 kV to 0.4 kV. Our key focus is to supply and install new switchgear and transformers that comply with the refinery’s technical specifications while ensuring minimal operational interruptions at Baiji Refinery.
Major Scope of Work:
Replacement of Old Fuji Switchgear and MCC
- Removal of aging Fuji low-voltage switchgear.
- Installation of new Siemens Sivacon S8 switchgear to improve reliability and operational safety.
Coordination with Refinery Operations
- Development of an installation schedule in alignment with the refinery’s operational program.
- Managing phased outages to maintain critical production processes during the upgrade.
Engineering Adaptations
- Reviewing legacy Fuji control and wiring diagrams and updating them to match the new Siemens
switchgear requirements. - Adapting layouts to accommodate the dimensions of the new switchgear with minimal mechanical or
civil modifications. - Striving for near-zero electrical revisions to existing control cables and wiring connections.
Project Status
- Material approval is underway with MRC.
- Following the approval phase, installation and commissioning will commence according to the agreed
plan.
Key Challenges:
Scheduling and Operational Constraints
- Ensuring the switchgear installation does not disrupt essential refinery operations.
Technical Integration - Modifying old Fuji schematics to match the new Siemens control and protection philosophy.
Minimal Retrofits
- Achieving a design that fits within existing spatial constraints and cable routing, thus reducing both
mechanical and electrical modifications.
