Abstract
Effect of ambient temperature simulating different weather conditions has been investigated on insulators of different shapes. It has been observed that for a given salinity of contaminating solution, the amount of salt contained in the contaminated-surface layer is strongly temperature dependent. This is attributed to the viscosity-temperature characteristics of the electrolytic solution, dc flashover voltage of contaminated insulators reduces by about 0.7 ^ 1.0% per degree centigrade rise in temperature. dc arc V-i characteristics are, however, temperature independent in the investigated range. The observed temperature dependence of dc withstand voltage of contaminated insulators is attributed exclusively to the change of resiudal resistance and a good agreement holds between the measured and the estimated values. The influence of polarity on contamination withstand characteristics is independent of temperature variations in the investigated range.
| Original language | English |
|---|---|
| Pages (from-to) | 129-134 |
| Number of pages | 6 |
| Journal | IEEE Transactions on Electrical Insulation |
| Volume | EI-19 |
| Issue number | 2 |
| DOIs | |
| State | Published - Apr 1984 |
| Externally published | Yes |
ASJC Scopus subject areas
- General Engineering
- Electrical and Electronic Engineering