Izvorni znanstveni članak

https://doi.org/10.37798/202069453

Fleet Asset Management Opportunities Arising from Transient Monitoring of Power Transformers and Shunt Reactors

Tomislav Župan ; Končar - Electrical Engineering Institute Inc., Zagreb Croatia
Bruno Jurišić ; Končar - Electrical Engineering Institute Inc., Zagreb Croatia
Ivan Murat ; Končar - Electrical Engineering Institute Inc., Zagreb Croatia
Božidar Filipović-Grčić ; University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb Croatia
Slaven Goglia ; Končar - Power Transformers Ltd., Zagreb Croatia
Goran Levačić ; Croatian Transmission System Operator Ltd., Zagreb Croatia

Sažetak

Power transformers and shunt reactors are strategic assets for every system operator and their downtime should be kept as low and controlled as
possible. During their multi-decade service life, they are regularly exposed to transient overvoltages. These situations stress their insulation systems
and can cause accelerated deterioration and aging. Since the shapes of these overvoltages are usually unknown, an additional approach to assessing
the health index can be realized using monitoring systems with transient recorders. Analyzing the transient overvoltages using frequency domain
severity factor, a quantification of additional stress on the transformer’s/shunt reactor’s insulat

Ključne riječi

transformer transient monitoring system, overvoltage stress, frequency domain severity factor, health index estimation, fleet asset management

Hrčak ID:

261840

URI

https://hrcak.srce.hr/261840

Datum izdavanja:

31.12.2020.

Posjeta: 845 *