HV Surge Arresters upto 245 kV
HV Surge Arrester upto 216kV for substation protection from lightening and switching overvoltages. Bowthorpe EMP pioneered the development of polymeric composite housed surge arresters in early 1980’s and since 1986, has a proven service experience across the globe, operating in world’s toughest environments. Bowthorpe surge arresters provide active over-voltage protection, reducing system outages and protecting expensive terminal equipment.
- Proven moisture sealing technology .
- Non-tracking insulating silicone materials.
- Fully integrated single piece and void less design
- Safe mode of failure
- Conforming to IEC60099-4
- Protection to HV networks/equipment from lightning and over-voltages
- Optimised for outdoor use to protect HV switchgears, transformers and cable end terminations
Description
| 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 |
Brand
Raychem RPG
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