11kv Surge Arresters Polyer Housing Znic Oxide ZnO

11kV Surge Arresters polyer housing Znic Oxide ZnO Introduction of arresters 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.Surge arrester is mainly used to protect distribution transformer, cable connector and electric equipment from being damaged by lighting impulse voltage and operated over-voltage.  Technical Parameter   Rated voltage 12KV12kvNominal discharge current10kA5kARated AC system frequency50/60Hz50/60HzContinuous operating voltage /MCOV 7.65kV7.65kV1/4μs steep current impulse (crest)42.2kV40kV8/20 μs Lighting impulse residual voltage(crest)36kV36kV30/60 μs Swithcing current impulse 27kV27kV2ms Rectangular current withstand 250A150A4/10 μs High current impulse withstand(crest)100kA65kALeakage/creepage distance365mm365mm  Normal service conditions:  1.The ambient temperature: -40°C ~+40°C2.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! Our main products are :Fuse cutoutLightning arresterInsulatorDisconnecting switchElectrical fitting parts  What we can do special for you:Samples are available for standard types.No minimum order qty for our products.Sales for spare parts are available.Design new types and customized according to your drawing.Good technical support after sale during the product in service.Factory developing each year for our customers.   /* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1