Abstract
A surge arrester connected to a laboratory analogue of an isolated distribution line or cable with trapped charge has been tested for its performance against lightning surges. The line/cable system has been substituted by an equivalent capacitance which has been previously charged from a direct-voltage source. A single-stage capacitor bank is triggered to provide a lightning impulse test current. Both the discharge current and the residual voltage across the arrester were measured. Such tests have been performed upon different metal-oxide arresters of the same rating. Variable results were found. In some cases the residual voltage at peak current was found to be significantly influenced by the pre-conditioning caused by trapped charge.
| Original language | English |
|---|---|
| Pages | 441-444 |
| Number of pages | 4 |
| Publication status | Published - 1994 |
| Externally published | Yes |
| Event | Proceedings of the 29th Universities Power Engineering Conference. Part 2 (of 2) - Galway, Irel Duration: Sept 14 1994 → Sept 16 1994 |
Other
| Other | Proceedings of the 29th Universities Power Engineering Conference. Part 2 (of 2) |
|---|---|
| City | Galway, Irel |
| Period | 9/14/94 → 9/16/94 |
ASJC Scopus subject areas
- Engineering(all)