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30KV 5KA Porcelain Surge Arrester

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Product Detail

 33KV 5KA Porcelain Surge arrester

33KV 5KA Porcelain Surge arrester

Technical Parameters:

Description

Unit

Value

 Rated voltage

KV

30

 Nominal discharge current

KA

5

 Rated AC system frequency

Hz

50 / 60

 Continuous operating voltage(rms)

KV

24

 1/4μs steep current impulse (crest)

KV

102

 8/20us Lighting impulse residual voltage(crest)

KV

90

 30/60us Swithcing current impulse 

KV

79

 Rectangular current withstand 2ms

A

150

 4/10us High current impulse withstand(crest)

KA

65

 Leakage/Creepage Distance

mm

1139


Product Description

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 :less than 35m/s.

 5.The filthy area should be given clear indication.

 

 Feature: 

 

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.

 


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