Abstract
Using an improved PEA system which is capable of measuring space charge distribution at minimum intervals of 25 μs, the charge distribution inside water-treed polyethylene was examined. When a power-frequency ac voltage (50 Hz) was applied, charges were observed around the tip of water trees and on the electrode at the non-degraded side, but not on the electrode at the water-treed side. This means that the conductivity of water trees is high. When the frequency of applied voltage was as high as 2 kHz, charges became observable also on the electrode at the water-treed side. This implies that the conductivity of water trees is slightly low at this frequency.
| Original language | English |
|---|---|
| Pages (from-to) | 645-648 |
| Number of pages | 4 |
| Journal | Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Annual Report |
| Volume | 2 |
| Publication status | Published - 1998 Dec 1 |
| Event | Proceedings of the 1998 67th IEEE Annual Conference on Electrical Insulation and Dielectric Phenomena. Part 1 (of 2) - Atlanta, GA, USA Duration: 1998 Oct 25 → 1998 Oct 28 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Industrial and Manufacturing Engineering
- Building and Construction