Elektro-Inženjerski Biro d.o.o.


Elektro-Inženjerski Biro was founded in 1996. The company is specialized in electrical power engineering, including all levels of design documentation, site services during the construction/building and during the operational period, site testing, commissioning, engineering and consulting.

Since it’s founding, Elektro-Inženjerski Biro has participated in over 100 power engineering projects spread over 30 countries across the world. Main scope of work are electrical power plants, transmission/distribution utilities – high/medium/low voltage substations, electrical distributions systems and industry plants.

Our work model emphasizes individual approach, custom tailored to the needs and specifics of the project as well as client requirements. In cooperation with clients and our ability to promptly adjust in order to reach the best solutions.

We take pride in the constant investment in the employees, knowledge, latest technology and modernization of business process. These things give us energy for reaching and continuously lifting of the scale: while minimizing the possibility of human error, we are constantly growing in quality and speed of service.


The main scope of work focuses on electrical power plants, transmission/distribution utilities - high/medium/low voltage substations, electrical distribution systems and industry plants, our activities include:


• design calculations and equipment selection • technical specifications • single line and block diagrams • layout and section drawings, 3D modelling • schematic diagrams, terminal plans • various details (earthing, cable connections etc.) • other necessary documents Elektro-Inženjerski Biro’s long history of electrical design, production of documentation in envelops all stages, all levels electrical design, weather it is switchyards, substations, powerplant generator voltage installations, […]

Consulting and system analysis

CONSULTING SERVICES • bid evaluation • technical documentation and design checking • advisory services SYSTEM ANALYSIS • grid study • calculations of steady and transient conditions • problem detection and solution proposal  

3D Interactive model

3D INTERACTIVE MODEL AND VISUALIZATION • interactive 3D model • device and equipment state real-time display • possibility of access to all documentation from within the model • personnel training on real plant model • log in to work area with a device, ensuring personal safety • photorealistic visualizations and animations

Factory and Site services

FACTORY INSPECTION • perparation of factory inspection protocols and factory inspection – FAT (Factory Acceptance Test) • checking and commenting of manufacturer documents   SITE SERVICES • preparation of instructions for erection • preparation of site test protocols, procedures and inspections – SAT (Site Acceptance Test) • supervision during erection • site testing and parametriyation • comissioning • operating and maintenance instructions • client training […]

Latest Posts

550 kV Take-off yard in Laos – Erected

550 kV Take-off yard in Laos – Erected

Three years after EIB started design works on the take-off yard in a major hydro power plant in Laos, Xayaburi, the installation of equipment and structures is nearly completed. Visually most impressive, surely, is the 550 kV gantry, which ensures the connection to the two overhead lines. Its statue towering over the installation at over 40 meters height (when lightning rods are considered), it is […]

6.3 kV Aux supply in TPP Osijek

6.3 kV Aux supply in TPP Osijek

Having completed preliminary, main as well as detailed design, today we are happy to complete as built design for the newly-built Auxiliary supply installation in TPP Osijek. This installation includes transformation 110/6.3 kV, 35/6.3 kV, all auxiliary systems, GIS indoor 6.3 switchyard and secondary systems.


Antuna Šoljana 24, 10090 Zagreb, Croatia

Telephone number: +385 (0)1 386 6673
Fax number: +385 (0)1 386 6672
Email: eib@eib.hr
Web page: http://www.eib.hr


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