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ANALYSIS OF SURGE ARRESTERS FAILURES IN THE INSTALLATION OF BROADCASTING TRANSMITTER

VIKTOR MILARDIĆ orcid.org/0000-0001-7230-3500 ; University of Zagreb Faculty of Electrical Engineering and Computing
IVICA PAVIĆ ; University of Zagreb Faculty of Electrical Engineering and Computing

Sažetak

In the operation of the broadcasting transmitter, during a lightning storm,
comes to frequent surge arrester failures in the switchgear of the broadcasting
transmitter and along the 10 kV supply cable (surge arresters in the cable section
boxes). Analysis of lightning strokes to the broadcasting transmitter is given in the
paper. EMTP simulation of surge arresters loading was conducted. The energy
overload of surge arresters is due to lightning flash with more than one lightning
strokes or more lightning flashes in short time. Recommendations were also given
for improvement of existing surge protection and reduction the number of surge
arresters failures.

Ključne riječi

broadcasting transmitter; lightning stroke; overheating; surge arrester failure

Hrčak ID:

199287

URI

https://hrcak.srce.hr/199287

Datum izdavanja:

15.9.2017.

Posjeta: 666 *