X-ray testing of high voltage oil-filled electrical equipment: Physical background and technical requirements

In this study the capability of X-ray technology to examine the internal elements of high-voltage equipment is reported for the first time. Samples of high-voltage minimum oil and SF6 circuit breakers were designed and tested to evaluate the X-ray images and compare with known artificial defects. Th...

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Bibliographic Details
Published in:IEEE transactions on dielectrics and electrical insulation 2020-02, Vol.27 (1), p.172-180
Main Authors: Darian, L. A., Golubev, P. V., Obraztsov, R. M., Grabchak, E. P., Gimaev, R. R., Ozerov, O. V., Kovalev-Serebryakov, R. V., Zverev, V. I.
Format: Article
Language:English
Subjects:
Attenuation
Circuit breakers
Circuit design
Electric equipment
High voltages
high-voltage circuit breakers
Insulators
non-destructive testing
oil-filled electrical equipment
Oils
radiation
Radiography
Testing
X ray imagery
X ray spectra
X-ray imaging
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Summary:In this study the capability of X-ray technology to examine the internal elements of high-voltage equipment is reported for the first time. Samples of high-voltage minimum oil and SF6 circuit breakers were designed and tested to evaluate the X-ray images and compare with known artificial defects. The assessment of the influence of X-ray spectral energy characteristics on information obtained by X-ray imaging of objects having spread equivalent radiation thickness determined the technical requirements for this analysis.
ISSN:1070-9878
1558-4135
DOI:10.1109/TDEI.2019.008363