Equipment for the new combined-cycle cogeneration block at EL-TO Zagreb

Production is actively underway at our facilities to manufacture equipment for the new combined-cycle cogeneration block at the EL-TO Zagreb power plant. 

In mid-2020, we partnered with the Italian company FATA to supply three-phase isolated busbars for two gas turbine generator units, each with a capacity of 66.5 MVA, as well as for a steam turbine with a capacity of 45 MVA.

This project is part of Hrvatska elektroprivreda (HEP)’s broader HRK 900 million (€120 million) initiative to construct the new Block L, scheduled for completion in 2021. Once operational, Block L will generate 150 MW of electricity and 114 MW of thermal energy, fully replacing Block A. 

The contract outlines the delivery of two types of three-phase isolated busbars: the TOV 12 – 4000, measuring 50 meters for each gas turbine unit, and the TOV 12 – 2500, approximately 100 meters in length for the steam turbine unit.

EL-TO Zagreb

These three-phase isolated generator busbars are specifically designed for power plant applications, facilitating the transfer of electrical energy from generators to transformers. They offer exceptional operational reliability, robust protection against inter-phase and three-phase short circuits and ensure the highest level of personnel safety by preventing accidental contact with live components. Furthermore, they significantly reduce the magnetic field outside the enclosure. 

A distinctive feature of this project is the installation of the equipment, which will be suspended from a lattice steel structure on the machine room roof of the power plant. During production, type testing for the new three-phase isolated busbars—rated for up to 5000 A—will be conducted at the KONČAR Institute of Electrical Engineering laboratories, adhering to IEC 62271-200, IEC 62271-1, and ANSI C37.2 standards.

The equipment is scheduled for delivery from our facility in February 2021, with on-site installation set to begin in line with project milestones.