HV Surge Arresters upto 245 kV
Specifications
| Parameter |
|---|
| Tested in accordance with IEC60099-4 at independent accredited laboratories |
| Direct moulded housing to prevent ingress of moisture |
| Low residual voltages |
| Safe non-shattering short circuit behaviour to higher current levels |
| Maintenance free |
| Hydrophobic silicone housing (tracking and erosion resistant) |
| Excellent cantilever and tensile performance |
Technical Information
| Type | PCA-I | PAA4 | |
|---|---|---|---|
| Rated voltage Ur | kV | 66-245 | 66-245 |
| Line discharge class as per IEC60099-4 | 3 | 2 | |
| Arrester class designation | SM | SL | |
| Rated discharge current 8/20 µs | kA | 10 | 10 |
| High current impulse 4/10µs | kA | 100 | 100 |
| Energy (according to IEC 99-4, 8.5) Line discharge | kJ / kV Ur | 7.8 | 4.5 |
| Repetitive Charge transfer rating (Qrs) | C | 2.2 | 1.2 |
| TOV | |||
|
1.15x Ur | 1.08x Ur | |
|
1.10x Ur | 1.04x Ur | |
| High current short circuit Pre failing method | kA | 63 | 40 |
| Mechanical Strength | Outdoor | Outdoor | |
|
kA | 40 | 65 |
|
kNm | 2 | 0.5 |
|
kNm | 2.5 | 0.6 |
