APA 6th Edition Frotscher, R. (2017). Tap-changer DGA: Uncovering an enigma. Transformers Magazine, 4 (3), 22-27. Preuzeto s https://hrcak.srce.hr/185301
MLA 8th Edition Frotscher, Rainer. "Tap-changer DGA: Uncovering an enigma." Transformers Magazine, vol. 4, br. 3, 2017, str. 22-27. https://hrcak.srce.hr/185301. Citirano 02.12.2020.
Chicago 17th Edition Frotscher, Rainer. "Tap-changer DGA: Uncovering an enigma." Transformers Magazine 4, br. 3 (2017): 22-27. https://hrcak.srce.hr/185301
Harvard Frotscher, R. (2017). 'Tap-changer DGA: Uncovering an enigma', Transformers Magazine, 4(3), str. 22-27. Preuzeto s: https://hrcak.srce.hr/185301 (Datum pristupa: 02.12.2020.)
Vancouver Frotscher R. Tap-changer DGA: Uncovering an enigma. Transformers Magazine [Internet]. 2017 [pristupljeno 02.12.2020.];4(3):22-27. Dostupno na: https://hrcak.srce.hr/185301
IEEE R. Frotscher, "Tap-changer DGA: Uncovering an enigma", Transformers Magazine, vol.4, br. 3, str. 22-27, 2017. [Online]. Dostupno na: https://hrcak.srce.hr/185301. [Citirano: 02.12.2020.]
Sažetak Gases dissolved in insulating liquids are generated by thermal deterioration of the insulating liquid or they are introduced by contact with a gaseous environment (air, for example). Gases can also be formed by normal ageing processes of the liquid or catalytic interactions with metals or paints. The analysis of these dissolved gases is called DGA. Electrical equipment suitable for DGA are power transformers, industrial and special transformers, instrument transformers, bushings, cables and switching equipment. DGA for transformers has been established more than 40 years ago and since then was continuously refined according to the proceeding technical development of liquid-filled transformers.