Original scientific paper

A review of transformer FRA measurement and diagnosis techniques

Yaoxian Yang ; University of Manchester
Shuhang Shen ; University of Exeter
Fan Zhang ; Xi'an Jiaotong University
Shengchang Ji ; Xi'an Jiaotong University
Chandima Ekanayake ; University of Queensland
Tapan Kumar Saha ; University of Queensland
Stefan Tenbohlen ; University of Stuttgart
Paul Jarman ; University of Manchester
Zhongdong Wang ; University of Exeter

Abstract

Frequency Response Analysis (FRA) is a successful technique to detect mechanical damage in power transformers with greater sensitivity than other measurements. The SFRA method is commonly used today and requires a benchmark FRA measurement for comparative diagnostic
methods. The use of numerical indices to quantify differences in two FRA signatures is described. It is important to understand the importance of understanding the physical meaning behind the frequency responses of windings through modelling and simulation.

Keywords

Frequency Response Analysis, Sweep Frequency Response Analysis, Windings, Numerical Indices, FRA Interpretation

Hrčak ID:

300162

URI

https://hrcak.srce.hr/300162

Publication date:

13.4.2023.

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