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Multiplicative method for assessing the technical condition of switching bay devices in a substation using maintenance prioritiesJanez Ribič,
Gorazd Štumberger,
Marko Vodenik,
Uroš Kerin,
Miha Bečan,
Anja Šketa,
Drago Bokal,
Peter Kitak, 2025, izvirni znanstveni članek
Opis: 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.
Ključne besede: condition-based maintenance, health index, circuit breaker, disconnector, instrument transformer, substation, failure mode analysis
Objavljeno v DKUM: 23.06.2025; Ogledov: 0; Prenosov: 11
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