Power transformer winding model for lightning impulse testing. (2017)

• Record Type: Journal Article
• Authors: Župan, Tomislav; Trkulja, Bojan; Štih, Željko
• Is Part Of: Procedia engineering. Volume 202(2017)
• Page Start: 297
• Page End: 304
• Publication Date: 2017
• Subjects: power transformers -- numerical simulation -- electromagnetic transients -- time-domain analysis -- coils -- internal overvoltages; Engineering -- Congresses; Engineering -- Periodicals; Engineering; Conference proceedings; Periodicals; 620.005
• DOI: 10.1016/j.proeng.2017.09.717
• Languages: English
• ISSNs: 1877-7058

Abstract

Abstract: This paper presents a method for calculating the internal voltage transients useful for power transformer winding modelling. The method is based on lumped parameter model of a transformer winding and the transient response is obtained using time-domain analysis. Lumped circuit parameters are calculated using self-developed solvers which are benchmarked using professional finite element method (FEM) software. The results show that the presented approach gives satisfactory results and is computationally very fast.