1. Fuhr J, Aschwanden T (2017) Identification and localization of PD-sources in power transformers and power generators. IEEE Trans Dielectr Electr Insul 24(1):17–30
2. https://www.transform.ru/sst/usege/ss/alexeev/oee.htm
3. Taikina M (2010) Survey of transformer failure causes and consequences. Bachelor’s thesis in Technology for the degree of Bachelor of Science in Technology submitted for inspection in Vaasa, 7th of September, 2010
4. Domzalski T (1997) Reconstruction of transformers on site. Trans Distrib World 2:43–38
5. Jan ST, Afzal R, Khan AZ (2015) Transformer failures, causes and impact. International conference data mining, civil and mechanical engineering (ICDMCME’2015) Feb. 1–2, 2015 Bali (Indonesia)