Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2004.05b
- /
- Pages.7-10
- /
- 2004
Electrical Properties of Nozzle for Electrical Apparatus
전력기기용 Nozzle의 전기적 특성
- Park, Hoy-Yul (Korea Electrotechnology Research Institute) ;
- Kang, Dong-Pil (Korea Electrotechnology Research Institute) ;
- Ahn, Myeong-Sang (Korea Electrotechnology Research Institute)
- Published : 2004.05.21
Abstract
This paper presents the electrical properties of PTFE nozzle for a electrical apparatus. In the arcing environment in a electrical apparatus, radiation is considered to be the major energy transport mechanism from the arc to the wall. The fraction of the radiation power is emitted out of the arc and reaches the nozzle wall, causing ablation at the surface and in the depth of the wall. The energy concentration in the material leads to the depolymerization and eventually leads to the generation of decomposed gas as well as some isolated carbon particles. Adding some fillers into PTFE is expected to be efficient for improving the endurability against radiation. In this experiment, three kinds of fillers that have endurance in the high temperature environment were added into PTFE. Light reflectance of fillers was investigated. Dielectric constan and dissipation factor of PTFE composites were investigated. Dielectric constant and dissipation factor of the PTFE composites increased with increasing contents of the fillers.
Keywords