Use of Deformation Coefficient for Condition Assessment of Transformer Winding

This paper presents a novel method for deformation diagnostics of transformer windings using terminal measurements. The shortcomings of existing practices in locating deformation and determining its extent are discussed. The logical steps involved in devising the new method are elaborated. The effectiveness of Deformation Coefficient (DC) in locating the deformed winding section is demonstrated. Comparison of experimental results, on a model winding, with simulation studies is presented.

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Mechanical Condition Assessment of Transformer Winding Based on D-S Evidence Theory

2021 6th Asia Conference on Power and Electrical Engineering (ACPEE) ◽

10.1109/acpee51499.2021.9436835 ◽

2021 ◽

Author(s):

BIN ZHANG ◽

Zhen Yang Zhao ◽

Jin Liang Song ◽

Hao Chen ◽

Fei Ming Wang ◽

...

Keyword(s):

Evidence Theory ◽

Condition Assessment ◽

Mechanical Condition ◽

Transformer Winding

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Transformer winding condition assessment using frequency response analysis and evidential reasoning

IET Electric Power Applications ◽

10.1049/iet-epa.2009.0102 ◽

2010 ◽

Vol 4 (3) ◽

pp. 198 ◽

Cited By ~ 56

Author(s):

A. Shintemirov ◽

W.H. Tang ◽

Q.H. Wu

Keyword(s):

Frequency Response ◽

Condition Assessment ◽

Evidential Reasoning ◽

Response Analysis ◽

Frequency Response Analysis ◽

Transformer Winding

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Three-Phase Transformer Winding Deformation Diagnostics using Terminal Capacitance Measurements

International Journal of Emerging Electric Power Systems ◽

10.2202/1553-779x.2142 ◽

2009 ◽

Vol 10 (3) ◽

Cited By ~ 1

Author(s):

Prasad Joshi ◽

Shrikrishna V Kulkarni

Keyword(s):

Diagnostic Procedure ◽

Laboratory Scale ◽

Scale Model ◽

Capacitance Measurements ◽

Three Phase ◽

Transformer Winding ◽

Novel Method ◽

Simulation Results ◽

Winding Deformation ◽

Deformation Coefficient

This paper presents a novel method for determining location and extent of deformation in three-phase transformer windings. It is established, with experiments on laboratory scale model coils, that the deformation coefficient is an effective indicator of deformation in star and delta connected windings. The diagnostic procedure is easy to implement and deskilled. The diagnostic procedure is elaborated in the paper. Simulation results are compared with experimental readings on the model coils.

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