- Tytuł:
- Microstructure and Degree of Degradation of ZnO Varistors in Surge Arresters Due to Operation
- Autorzy:
-
Papliński, P.
Wańkowicz, J.
Ranachowski, P.
Ranachowski, Z. - Powiązania:
- https://bibliotekanauki.pl/articles/356415.pdf
- Data publikacji:
- 2018
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
surge arrester
MO varistor
microstructure of ceramics
ceramic material degradation - Opis:
- The paper presents the test results for the microstructure of ZnO varistors comprising high voltage gapless surge arresters. The tests were performed on varistors produced in different periods and by various manufacturers. The research was inspired by different characteristics of changes in values of current flowing through surge arresters as a function of changes in values of system voltage in a 220 kV substation, and the temperature in a multi-year cycle. Furthermore, the effects of varistor microstructure degradation following a failure of an unsealed surge arrester were investigated. The results provided the grounds for assessment of ZnO varistor microstructure parameters in terms of their durability and resistance to degradation processes.
- Źródło:
-
Archives of Metallurgy and Materials; 2018, 63, 3; 1267-1273
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł