Metal Oxide Surge Arresters
SBK Series in Solid Core Design for applications up to 170 kV
The arresters with silicone housing in Solid Core Design of the SBK series
are available for up to 170 kV.
As for all arresters with silicone housing, Tridelta uses high-quality LSR Silicone, which keeps its hydrophobic and UV-resistant/non-ageing properties over the complete service life and ensures excellent artificial pollution performance.
Because of its modular design, the SBK arresters in Solid Core Design can be easily manufactured adapting to variable lengths, creepage distances and clearances in accordance with customer requirements. Due to their very low weight, they are an ideal solution for application as transmission line arresters in addition to their use as station arresters.
As for all arresters with silicone housing, Tridelta uses high-quality LSR Silicone, which keeps its hydrophobic and UV-resistant/non-ageing properties over the complete service life and ensures excellent artificial pollution performance.
Because of its modular design, the SBK arresters in Solid Core Design can be easily manufactured adapting to variable lengths, creepage distances and clearances in accordance with customer requirements. Due to their very low weight, they are an ideal solution for application as transmission line arresters in addition to their use as station arresters.
Field of application
Protection of transformers, switchgears, and plants against atmospheric and switching overvoltages
Selection of metal oxide surge arresters
The selection of the rated and the continuous operating voltage of the arresters is depending on the neutral performance of the networks. Guidelines for selection: see DIN VDE 0675/part 5 and IEC 60099-5
Design
Silicon housing: grey RAL 7040
Fittings: Al alloy
Connections: clamps, screws, nuts hot-dip galvanized or stainless steel
Optional accessories
Monitoring spark gaps, surge counters, diagnostic appliance
| Product | SBK | |
|---|---|---|
| High System Voltage Us | kV | 170* |
| Max. Rated Voltage Ur | kV | 150* |
| max. Nominal Discharge Current ln (at 8/20μs waveshape) | kA | 10 |
| Max. Thermal Energy Absorption Capability | kJ per kV of Ur | 7 |
| Max. Line Discharge Class | 3 | |
| Qrs (accor. IEC 60099-4 Edt. 3.0) | 2.0 | |
| High Current Withstand Strength 4/10 μs | kA | 100 |
| Max. Low Current Withstand Strength 2ms | A | 1000 |
| Max. Short Circuit / Pressure Relief Capability | kA – 0.2s | 40 |
| Mechanical Strength: Specific short-term load SSL | Nm | 500 |
* Higher rating for line arrester applications (TLA) available on request
Related Products
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Surge Arrester Monitoring System
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SBKC Series in Cage Design for applications up to 420 kV
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