Naslov
How to Prevent Transformer Bushing Failures?

Autori
Mikulecky, Antun

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the International Colloquium Transformer Research and Asset Management, Cavtat, 12.-14.11.2009. / - , 2009

Skup
International Colloquium Transformer Research and Asset Management, Cavtat, 12. - 14. 11. 2009.

Mjesto i datum
Cavtat, Hrvatska, 12.11.2009. - 14.11.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
bushing; failure; capacitance; tand; diagnostics; monitoring; power transformer

Sažetak
About a quarter of all transformer failures are caused by bushings and they are the most common reason of transformer fire with collateral and ecological damages. That situation can be prevented by applying off-line and on-line bushing monitoring, especially by measuring of capacitance C and dielectric dissipation factor tand. The investigation of temperature dependence of C and tand were implemented on specially designed models with different moisture contents in the insulation and during artificial ageing. New criteria for diagnostics of OIP bushing insulation system condition, applicable to off-line and on-line monitoring, based on investigation results and a broad experience with bushings diagnostics, are proposed.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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