TY - CHAP A1 - Filipović-Grčić, Bozidar A1 - Frolov, Mikhail A1 - Jurisic, Bruno A1 - Manthe, Thomas A1 - Matveev, Daniil A1 - Rahimpour, Ebrahim T1 - Consideration of Non-Standard Overvoltages Compared with Standard Overvoltages in Power Transformers T2 - 6th International Colloquium Transformer Research and Asset Management, Split, Croatia N2 - Overvoltages that exist in the power system differ from the standard overvoltages (OVs) waveshape, that are used to test power equipment. In the paper typical OV waveshapes that occurs in the power system are analyzed, using the methods available in the literature: frequency domain severity factor (FDSF), time domain severity factor (TDSF) and the method from IEC 60071-2: 2018, Annex I. General remarks about applicability of these methods are given in the paper. It can be concluded that without the knowledge of transformer design and dielectric strength of an insulation system elements, the reliable estimation of non-standard overvoltages severity cannot be made. The results of the paper are in line with the conclusion of CIGRE WG A2.63: Transformer Impulse Testing. Y1 - 2023 UR - https://www.researchgate.net/publication/376812552_Consideration_of_Non-Standard_Overvoltages_Compared_with_Standard_Overvoltages_in_Power_Transformers ER -