Space charge measurements by the thermal step method in epoxidic polymer materials

✍ Scribed by Hichem Smaoui; Hajer Guermazi; Serge Agnel; Youssef Mlik; Alain Toureille

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 131 KB
• Volume: 49
• Category: Article
• ISSN: 0959-8103
• DOI: 10.1002/1097-0126(200011)49:11<1513::aid-pi550>3.0.co;2-x

✦ Synopsis

To improve the performance of insulators, space charge measurements and localisation are of fundamental importance. For this purpose we have utilised the thermal step method (TSM) which allows measurement of the space charge density within the material. The object of this study is to characterise the electric state of epoxidic polymer material used in electrical insulation, and to study the in¯uence of different factors involving the appearance and the evolution of space charge. The in¯uence of poling temperature as well as the manufacturing process of the material on the remaining space charge distribution is also studied. Measurements show that the space charge behaviour was in¯uenced by two factors: the poling temperature and the manufacturing process.