METHODOLOGIES TO DETERMINE THE CONDITION OF HV CABLE LINES

Ovaj rad opisuje metode utvrđivanja stanja visokonaponskih kabelskih vodova s ciljem pravovremene detekcije oštećenja i grešaka koje svojom progresijom dovode do kvara dijagnosticiranog kabelskog sustava. Prikazana su i objašnjena osnovna tehnološka rješenja visokonaponskih kabela i kabelskih vodova te su navedeni osnovni uzročnici kvarova na istim. Uz to, dan je i detaljan pregled dijagnostičkih metoda i postupaka za utvrđivanje stanja na kabelskim vodovima te je prikazana mjerna aparatura za ispitivanja. Na samom kraju, napravljena je detaljna razrada metode mjerenja parcijalnih izbijanja (PD) i metode mjerenja faktora dielektričnih gubitaka tan δ koje predstavljaju najsofisticiranije metode za utvrđivanje stanja kabelskih sustava u pogonu.This paper describes methodologies to determine the condition of high-voltage cable lines with the aim of timely detection of damage and errors that, by their progression, lead to the failure of the diagnosed cable system. The basic technological solutions of high–voltage cables and cable lines are presented and explained, and the basic causes of their failures are listed. In addition, a detailed overview of diagnostic methods and procedures to determine the condition of high–voltage cable lines is given, and the measuring apparatus for testing is presented. Finally, a detailed elaboration of the measuring partial discharges (PD) and the method of measuring the dielectric loss factor tan δ, which are the most sophisticated methods for determining the state of cable systems in operation, was made