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https://doi.org/10.37798/2024731511

Improving the Reliability of Online Bushing Monitoring

Vedran Jerbić ; Končar - Electrical Engineering Institute Ltd., Zagreb, Croatia
Samir Keitoue ; Končar – Power Transformers Ltd., Zagreb, Croatia
Jurica Puškarić ; HEP Proizvodnja d.o.o., HPP Gojak, Ogulin, Croatia
Ivan Tomić ; HEP Proizvodnja d.o.o., HPP Gojak, Ogulin, Croatia


Puni tekst: engleski pdf 1.743 Kb

str. 18-23

preuzimanja: 6

citiraj


Sažetak

This paper discusses the common issue of bushing failures in power transformers and presents methods for preventing such failures through online monitoring. The paper presents a method based on the comparison of bushing leakage currents from different transformers connected to the same busbars to overcome problems with unreliable measurement results due to grid voltage imbalance or frequent transformer outages.

Ključne riječi

bushing; online monitoring; insulation diagnostic; capacitance; tan delta

Hrčak ID:

315567

URI

https://hrcak.srce.hr/315567

Datum izdavanja:

25.3.2024.

Posjeta: 12 *