Problems associated with power supply of Sveti Rok Tunnel

Zdenko Balaz, Slavko Vujević, Rino Lucić
January 2008
Cite

Abstract

For the needs of the power supply of the Sveti Rok Tunnel, the TS 35 / 20 (10) kV Obrovac and TS 35 / 20 kV Sveti Rok were built. They belong to two mutually separated distribution areas. The paper describes some of the problems of the power supply of the Sveti Rok Tunnel. One of the important problems is the capacitive character of the consumption due to the dominant share of cable lines at the 20 kV voltage level. This can cause serious problems when switching off single-pole fault currents. Another important problem was the construction errors in the construction of the associated power facilities. Therefore, shortly after the tunnel was put into operation, a breakdown occurred at the 35 kV switching facility TS 35 / 20 (10) kV Obrovac. During the rehabilitation and renovation of the facility, high-voltage measurements of switching overvoltages were also carried out in the 35 kV facility TS 35 / 20 (10) kV Obrovac, during which high values ​​of switching overvoltages were measured.

Type
Conference paper
Publication
Zbornik radova Prvog savjetovanja Hrvatskog ogranka Medunarodne elektrodistribucijske konferencije (CIRED 2008)
Electrical Power Supply Tunnel Cable Network Capacitive Load Switching Overvoltages
Slavko Vujević
Slavko Vujević
Professor Emeritus

An expert in electrical engineering, particularly known for his contributions to numerical modeling of electromagnetic phenomena, lightning protection, and grounding. Throughout his career, he was a key member of the Faculty of Electrical Engineering, Mechanical Engineering, and Naval Architecture in Split, where he taught, mentored students, and actively participated in scientific research and international professional organizations.

Rino Lucić
Rino Lucić
Full Professor

Dr. sc. Rino Lucić is a retired professor from the Faculty of Electrical Engineering, Mechanical Engineering, and Naval Architecture in Split. Throughout his career, he taught courses at all study levels and actively participated in the realization of numerous scientific-research projects. As an author or co-author, he has published 41 scientific papers and 16 professional articles, with research interests spanning numerical modeling, transmission lines, finite element method, and power system transient analysis.