Analysis of fault detection in the electrical insulation system of rotating machines

A new approach for fault detection and analysis in the electrical insulation system of generator winding bars is used for visual investigation. This paper presents two series of measurements, each with two bars, under simultaneous electrical, thermal and mechanical stress. A mechanically dominated a...

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Bibliographic Details
Published in2018 International Conference on Diagnostics in Electrical Engineering (Diagnostika) pp. 1 - 4
Main Authors Cimino, Alessandro, Jenau, Frank, Staubach, Christian, Mashkin, Andrey, Pohlmann, Friedhelm
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2018
Subjects
Aging
Bars
diagnostic methods
Electric breakdown
Generators
Insulation
multi-factor ageing
rotating machines
Stress
Temperature measurement
terahertz-scan
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Summary:A new approach for fault detection and analysis in the electrical insulation system of generator winding bars is used for visual investigation. This paper presents two series of measurements, each with two bars, under simultaneous electrical, thermal and mechanical stress. A mechanically dominated aging mechanism is investigated in combination with a variation in temperature, which has a high influence on the lifetime. As a result of the complex structure of the insulation system, structural changes are difficult to detect with terahertz technology.
ISBN:9781538644232
1538644231
DOI:10.1109/DIAGNOSTIKA.2018.8526096