Naslov
Power transformer sound pressure level spectra versus electrical current spectra: Experimental findings

Autori
Galzina, Denisa ; Ajduk, Ana ; Garma, Tonko

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

Izvornik
Proceedings of 2020 3rd International Colloquium on Intelligent Grid Metrology, SMAGRIMET 2020 / - Zagreb : Institute of Electrical and Electronics Engineers (IEEE), 2020, 66-71

ISBN
978-953-184-265-5

Skup
3rd International Colloquium on Intelligent Grid Metrology (SMAGRIMET)

Mjesto i datum
Cavtat, Hrvatska, 20.10.2020. - 23.10.2020

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
sound exposure, sound pressure level, sound and current spectra measurements

Sažetak
All high-voltage installations are subject to a series of legislation and regulations to limit the permitted noise levels. Considering area, levels are divided into public areas, areas of increased sensitivity and occupational exposure areas. In addition, it is well known that there is a connection between load harmonics and noise in certain frequency spectrum. In order to investigate this phenomenon in more details, the in-situ field measurements of power harmonic and sound pressure levels are conducted in two high voltage substations The results showed that the noise values at all observed voltage levels are within the limits prescribed by the regulations. Moreover, dominant peaks in sound pressure level spectra typical for power transformers (fundamental, third, fifth and seventh harmonic) are visible in the corresponding current spectra. However, sound spectra peaks without obvious electrical counterpart have been detected as well, which will be subject of our future research.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA