20.500.12556/DKUM-93385 Multiplicative method for assessing the technical condition of switching bay devices in a substation using maintenance priorities The results of the presented research are directly applicable to enhancing the maintenance strategies of transmission system operator (TSO) assets, particularly high-voltage switchyard equipment, and are extendable to other TSO systems. Furthermore, the proposed methodology lays the groundwork for the implementation of predictive maintenance. This paper introduces a novel methodology for assessing the technical condition of high-voltage switchyard devices—specifically, circuit breakers, disconnectors, and instrument transformers—within a high-voltage switching bay. The proposed model integrates multiplicative criteria, which reflect maintenance actions, and additive criteria, which capture the operational and maintenance history of individual devices. Supported by a newly developed data model, the methodology enables an automated assessment process that generates a c-curve representing the condition trajectory of each device or device type. Leveraging real-time data from the maintenance information system, this automated approach allows for the timely evaluation of a device’s technical state prior to scheduled maintenance. The resulting c-curve analysis supports strategic maintenance planning and prioritization. The proposed solutions have been implemented experimentally by TSO ELES. condition-based maintenance health index circuit breaker disconnector instrument transformer substation failure mode analysis vzdrževanje glede na stanje zdravstveni indeks odklopnik merilni transformator podpostaja analiza načina odpovedi true false true MDPI Angleški jezik Slovenski jezik https://www.mdpi.com/2076-3417/15/13/6992 Članek v reviji 2025-06-23 14:39:05 2025-06-23 14:39:06 2025-06-24 03:09:30 0000-00-00 00:00:00 2025 0 0 31 str. iss. 13, [article no.] 6992 Vol. 15 June 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2025-05-09 2025-06-19 2025-06-20 621.3.077.4 240277763 10.3390/app15136992 2076-3417 applsci-15-06992.pdf applsci-15-06992.pdf 1 151CE12520DDCCE7CB3CA0903DFD347E 1164277db804bd234a4e6bbddfa761ba9e045df592ac85d42fd18510254a0362 4a5faf58-502f-11f0-a7a4-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=192622 https://www.mdpi.com/2076-3417/15/13/6992 0 52634c7c-502f-11f0-a7a4-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=192623 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0