Indirect Method of Moisture Degree Evaluation in Varistors by Means of Dielectric Spectroscopy
Varistors, due to their unique properties, are materials commonly used in surge protection devices. Their reliability, however, requires periodic inspection, which should specifically include assessment of their moisture content. So far, no method has been developed that would directly and non-invas...
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MDPI AG
2024-12-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/1/94 |
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| author | Krzysztof Walczak |
| author_facet | Krzysztof Walczak |
| author_sort | Krzysztof Walczak |
| collection | DOAJ |
| description | Varistors, due to their unique properties, are materials commonly used in surge protection devices. Their reliability, however, requires periodic inspection, which should specifically include assessment of their moisture content. So far, no method has been developed that would directly and non-invasively allow for the assessment of the moisture content of a varistor. In this work, an attempt was made to use dielectric spectroscopy for this purpose, i.e., measurements of dielectric parameters in the frequency domain. The tests were carried out on samples of materials based on silicon carbide. The result of the tests was the determination of the dependence of the dielectric response of the tested materials on moisture content, which after further tests may be the starting point for the development of a method for determining the moisture content of varistor surge arresters. |
| format | Article |
| id | doaj-art-3f557c20ca8046b191ab921db91b7135 |
| institution | Kabale University |
| issn | 1996-1073 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-3f557c20ca8046b191ab921db91b71352025-01-10T13:17:04ZengMDPI AGEnergies1996-10732024-12-011819410.3390/en18010094Indirect Method of Moisture Degree Evaluation in Varistors by Means of Dielectric SpectroscopyKrzysztof Walczak0Institute of Electric Power Engineering, Poznan University of Technology, 60-965 Poznan, PolandVaristors, due to their unique properties, are materials commonly used in surge protection devices. Their reliability, however, requires periodic inspection, which should specifically include assessment of their moisture content. So far, no method has been developed that would directly and non-invasively allow for the assessment of the moisture content of a varistor. In this work, an attempt was made to use dielectric spectroscopy for this purpose, i.e., measurements of dielectric parameters in the frequency domain. The tests were carried out on samples of materials based on silicon carbide. The result of the tests was the determination of the dependence of the dielectric response of the tested materials on moisture content, which after further tests may be the starting point for the development of a method for determining the moisture content of varistor surge arresters.https://www.mdpi.com/1996-1073/18/1/94varistorovervoltage protectiondielectric responsediagnosticsmoisture |
| spellingShingle | Krzysztof Walczak Indirect Method of Moisture Degree Evaluation in Varistors by Means of Dielectric Spectroscopy Energies varistor overvoltage protection dielectric response diagnostics moisture |
| title | Indirect Method of Moisture Degree Evaluation in Varistors by Means of Dielectric Spectroscopy |
| title_full | Indirect Method of Moisture Degree Evaluation in Varistors by Means of Dielectric Spectroscopy |
| title_fullStr | Indirect Method of Moisture Degree Evaluation in Varistors by Means of Dielectric Spectroscopy |
| title_full_unstemmed | Indirect Method of Moisture Degree Evaluation in Varistors by Means of Dielectric Spectroscopy |
| title_short | Indirect Method of Moisture Degree Evaluation in Varistors by Means of Dielectric Spectroscopy |
| title_sort | indirect method of moisture degree evaluation in varistors by means of dielectric spectroscopy |
| topic | varistor overvoltage protection dielectric response diagnostics moisture |
| url | https://www.mdpi.com/1996-1073/18/1/94 |
| work_keys_str_mv | AT krzysztofwalczak indirectmethodofmoisturedegreeevaluationinvaristorsbymeansofdielectricspectroscopy |