Analysis of physical transformer circuits for frequency response interpretation and mechanical failure diagnosis

The authors of this paper proposed an effective method applied to frequency response interpretation in low frequency range and mechanical failure diagnosis support based on measurements and analysis of a physical lumped component transformer circuit. To extend the interpretation until medium frequen...

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Bibliographic Details
Published in:IEEE transactions on dielectrics and electrical insulation 2016-06, Vol.23 (3), p.1491-1499
Main Authors: Dinh Anh Khoi Pham, Gockenbach, Ernst
Format: Article
Language:English
Subjects:
Circuits
Decision support systems
Diagnosis
Electrical insulation
Failure
Failure analysis
Failure diagnosis
Frequency response
frequency response interpretation
Impedance
Inductance
Parameters
power transformers
Solids
transformer circuits
Transformers
Windings
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Summary:The authors of this paper proposed an effective method applied to frequency response interpretation in low frequency range and mechanical failure diagnosis support based on measurements and analysis of a physical lumped component transformer circuit. To extend the interpretation until medium frequencies where mechanical failures influence most, this paper presents a novel approach on determining parameters in a physical distributed component circuit. The most important contribution of this paper is the possibility of determination of electrical parameters in the distributed circuit without knowing detailed knowledge of the transformer construction, which has been a challenge so far. In addition, the application capability of the distributed circuit in diagnosis of several mechanical failures in a distribution transformer is also investigated.
ISSN:1070-9878
1558-4135
DOI:10.1109/TDEI.2016.005551