Validation of Power Transformer Wideband Modeling Using standard sFRA method with VNA Equipment

Abstract

This paper presents validation of the wideband transformer modeling based on measurements with factory standard test equipment sweep frequency-response analyzer. This equipment is commonly available as it is used to perform the sweep frequency-response analysis (sFRA) transformer measurement required by IEC 60076-18 – International Standard. The measurement method is verified with VNA equipment, which is not a standard factory test tool.