Customization: | Available |
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Type: | Lightning Arrester |
Structure: | Zinc Oxide Arrester |
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The zinc oxide surge arrester is the most advanced over-voltage protector in the world. Due to make the resistor disc of core component mainly adopt zinc oxide arrester. Compared with the conventional siliconcarbide arrester, this prescription of the product improves greatly the volt-ampere characteristics of the resistor disc and increase through-current capability at over-voltage so as to bring a rad local-changes for the characteristics of the arresters.
Rated voltage | 33KV | 33kv |
Nominal discharge current | 10kA | 5kA |
Rated AC system frequency | 50/60Hz | 50/60Hz |
Continuous operating voltage /MCOV | 27.5kV | 27.5kV |
1/4μs steep current impulse (crest) | 112kV | 112kV |
8/20 μs Lighting impulse residual voltage(crest) | 90kV | 90kV |
30/60 μs Swithcing current impulse | 79kV | 79kV |
2ms Rectangular current withstand | 250A | 150A |
4/10 μs High current impulse withstand(crest) | 100kA | 65kA |
Leakage/creepage distance | 970mm | 970mm |
Normal service conditions:
1.The ambient temperature: -40°C ~+40°C
2.The altitude above sea level :not exceed 1000-2000m(the altiplano area should be indicated when order)
3.Earthquake intensity: not higher than 7 degrees;
4.Maximum wind velocity :lower than 35m/s.
5.The filthy area should be given clear indication.
Company Introcution:
We'are manufacturer in Zhejiang Province of China for the High voltage electrical apparatus for over 20 years!
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