| Title |
A Study on the Dielectric Strength Characteristics of Insulators According to Materials |
| Authors |
Daegu Kim ; Minkyung Jeong ; Hyoungku Kang ; Kibum Suh |
| DOI |
http://doi.org/10.5207/JIEIE.2022.36.11.031 |
| Keywords |
Electrical breakdown test, Electric field analysis, Glass insulator, Polymer insulator, Porcelain insulator |
| Abstract |
In general, insulator is a type of support used to fix and insulate an electric wire to a pylon or electric pole and is made of porcelain, glass, or silicone polymer in a power transmission line or a railway line. In transmission line applications, insulators are exposed to severe electrical and environmental conditions as well as insulation. Insulators are manufactured using various materials, and dielectric strength performance is different depending on the type of material. In this research, the dielectric strength characteristics of insulators according to insulation materials are analyzed by conducting electrical breakdown experiments and finite element method (FEM) analysis. Finally, the degradation characteristics of three types of insulators such as glass, porcelain, and polymer insulators are compared and analyzed through dry flashover and wet flashover experiments. In addition, electric field distribution analysis considering the type of insulator is analyzed by FEM simulation. |