Electrical Installations & Electrical Cabinet Assembly
To address the objectives of enhancing the electrical infrastructure and ensuring the successful implementation of the upgraded electrical system at the Rijeka oil refinery, our solution involved the following key steps:
Construction of TS-384 Substation: We constructed the TS-384 substation to supply power to the new DCU plant, designed for processing heavy residues. This involved the construction of a cable space area, installation of cable trays and channels, laying and connecting low-voltage, medium-voltage, and high-voltage cables, as well as assembly of GH Roxtec frames for cable sealing and management.
Switchgear Room: We assembled, connected, and functionally tested distribution-control cabinets, including power centers, MCCs, NN compensation cabinets, VFD cabinets, and other low-voltage cabinets. We also installed and connected medium- and high-voltage cabinets and busbar distribution systems. Furthermore, we assembled and connected oil transformers, a diesel generator, and installed AC and 110VDC UPS power supply batteries.
MV Končar switchgear 6kV (AIS).
LV ABB variable frequency drive.
HELB electrical cabinets for LV compensation.
MV ABB variable frequency drive.
Fire and Gas Room: We installed cable trays in a double-floor system, including various widths, and assembled distribution-control cabinets.
TS-303 Substation Reconstruction: We demolished the existing power center and installed new foundations for the new power center. Assembly of the new power center included front-facing and back-facing panels, interconnection of busbars and cables, and 3D scanning for busbar connections. We also reconnected all disconnected and extended cables, performed functional testing, and commissioned the upgraded system.
By implementing these solutions, we successfully enhanced the electrical infrastructure at the Rijeka Oil Refinery. The construction and installation of two new substations and the replacement of the existing power center improved the refinery's operational flexibility, energy efficiency, and overall competitiveness.
The upgraded system ensures a reliable power supply for the processing of heavy residues and enables the efficient handling of oil and other processed products.