Abstract
We investigated the features of defects on the rod and the “rod–end-terminal” contact of polymer and porcelain insulators using the developed integrated method for noncontact remote diagnostics of the performance of high-voltage insulators, including the initial detection of local areas with elevated electric-field gradients and the measurement of the set of characteristics of partial discharges. The emission of extra-large partial discharges was discovered, and their features were studied. Based on the measurement results, a diagram was constructed for electrophysical processes accompanying the emission of extra-large partial discharges, and their causes were established.
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This work was supported by the Russian Foundation for Basic Research, project no. 18-08-00203.
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Translated by V. Potapchouck
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Golenishchev-Kutuzov, A.V., Golenishchev-Kutuzov, V.A., Ivanov, D.A. et al. Integrated Noncontact Diagnostics of the Operable Condition of High-Voltage Insulators. Russ J Nondestruct Test 55, 596–602 (2019). https://doi.org/10.1134/S1061830919080060
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DOI: https://doi.org/10.1134/S1061830919080060