Specifications

R.V:17KV
material: ZnO varistor, silicon rubber housing
certification:ISO9001
confirm to IEC60099-4, JB/T8952-2005,JB/T10497

 

 

 

 

Main Principle:

 

The Zinc Oxide Surge arrester is the most advanced over-voltage protector in the world. This is due to the incorporation of a zinc oxide arrester as the core resistor disc.

 

This allows an improvement in the volt-ampere characteristics of the resistor disc and an increase in through-current capability in over-voltage situations, which is a drastic improvement when compared to conventional silicon carbide arresters. Under normal operating voltage, the current through the arrester is only one micro-ampere degree. When the arrester experiences an over-voltage situation, the excellent non linear characteristics will increase the current through the arrester several thousand times. The arrester is in the conducting state and will release the over-voltage energy to earth and thereby protecting power transmission equipment against the effects of over-voltage.

 

Technical Performance:

 

Typical types of 0.22KV to 220KV polymer housed metal oxide surge arrester (YH series) is in accordance with national standard technical requirement of GB11032-2000 (IEC60099-4, T8952 -2005, IEEE.C62.11)

 

 

 

 

Product's characteristics:

1. good sealing performance, special structure, anti-moisture and anti-explosion
2. its performance in heat-release and ability to absorb over-voltage is good
3. small volume, light weight, flexible installation, collision-resisting, high pull-resisting intensity, no breakage during transportation
4. it apply to: transmission line that with low thunder withstand and high lightning trip rate; dry hilly and mountain; tower with high earth resistance; heavy polluted area.

 

Technical  Parameter:

 

 

Normal service conditions:

1.The ambient air temperature is no higher than +40 degree. no lower than -40 degree.

2.The altitude above sea level does not exceed 2000m

3.Power frequency 48Hz~62Hz

4.Maximum wind speed does not exceed 35m/s

5.The earthquake intensity does not exceed 7 degrees

 

More related pictures: