Porcelain Outdoor Lightning Arrest for Distribution Networks
Description:
Surge Arrester is a device to protect electrical equipment from over-voltage transients caused by external (lightning) or internal (switching) events.
Main features: It adopts double sealing structure, the core encapsulates by molded silicone rubber which completely solves the sealing problem of porcelain housed products.
It has a two-way pressure release structure.
Its core component ZnO varistor has good pressure ratio, consistency, large flow capacity and high reliability.
Specifications:
| Type |
Y10W5-69/183 |
| Rated voltage---------kV |
69 |
| MOCV ----------------kV |
55.2 |
| Nominal Current-------kV |
10 |
| Residual voltage of steep impulse----at 5kA(kV) |
218 |
| 8/20µS Residual voltage of lightning impulse current kV(Peak value)-----at 5kA(kV) |
183 |
| Residual voltage of switching impulse current kV (peak value)----at 1kA (kV) |
140 |
| 1mA D.C reference voltage (kV) |
100 |
| Line discharge level |
2 |
| 2mS long duration impulse current A |
600 |
| 4/10µS High current impulse kA |
100 |
| Lightning impulse withstand kV |
325 |
| Power frequency voltage withstand(dry/wet)kV |
140 |
| 0.1S TOV--------------kV |
82.8 |
| 1S TOV----------------kV |
79.35 |
| 10S TOV---------------kV |
75.9 |
| 1200S TOV-------------kV |
69 |
| Creepage distance ----mm |
2500 |
| Material employed in series non-linear resistor |
Zinc Oxide |
|
