Features of electroosmosis usage for drying and moisture protection of electrical equipment

Nemirovskiy, Alexandr; Kichigina, Galina; Salikhova, Regina; Alyunov, A. N.

doi:10.1051/e3sconf/202017801078

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…One of the main reasons for failure of electric motors is moisturization of winding insulation. For this reason, up to 20-30% of electric motors fail annually [1][2][3][4][5][6][7]. Our studies show that for air humidity of 100% and temperature of 35 °C, the insulation resistance R drops to a critical value of 0.5 MΩ within 9-10 days.…”

Section: Introductionmentioning

confidence: 94%

Destruction of electrical insulating structures of electric motors during various drying techniques

et al. 2020

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The paper discusses the problem of drying electric motors in a humid environment. The study considers the influence of oven, current, electroosmotic, convective-electroosmotic drying methods on defect formation in electrical insulating materials of electric motors. Thermal oven drying destroys the insulation system of electric motors for an order of magnitude higher than other methods and has a lot of negative consequences. The electroosmotic and convective-electroosmotic drying processes do not have disadvantages of thermal drying methods, or these disadvantages are kept to a minimum. It is shown that electroosmotic and convective-electroosmotic drying result in a uniform distribution of moisture content in the volume of electrical insulating materials. This reduces the likelihood of dangerous stresses and subsequent cracking. Electroosmotic and convective-electroosmotic drying have little effect on defect formation processes in the insulation system of electric motors and, thus, almost do not reduce the service life of electric motors.

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Section: Introductionmentioning

confidence: 94%

Destruction of electrical insulating structures of electric motors during various drying techniques

et al. 2020

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“…In most cases, the decision is made to keep long-life transformers in operation. Therefore, the search for new approaches and methods of monitoring, diagnostics, and assessment for the effective maintenance, repair, and extension of the service life of transformers without the loss of reliability is becoming urgent (Alyunov et al, 2019;Dhini et al, 2020;Nemirovskiy et al, 2020;Wang et al, 2020). The issue of identifying defects at an early stage of their occurrence in normally operating transformers and, especially, in those that have reached the standard longevity of power equipment is an acute problem.…”

Section: Introductionmentioning

confidence: 99%