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Metal Oxide Arreeter 氧化锌避雷器
适用范围氧化锌避雷器主要用于保护配电变压器、电缆头变电站中的电气设备免受大气过电压和操作过的电压损坏。 Appliation: The ZnO arrester is mainly used to protect distribution transber, cable connector and electric equipment from being damaged by lightning impulse voltage and operated over-voltage.
功能特点
技术参数
经典案例
基本原理 Keystone:
氧化锌避雷器是目前国际最先进的过电保护器。由于其核心元件采用氧化锌电阻片，与传统碳化硅避雷器相比，改善了避雷器伏安特性，提高了过电压通流能力，从而带来避雷器特征的根本变化。
当避雷器在正常工作电压下，通过避雷器的电流仅有微安级，当遭受过电压时，由于氧化锌电阻片的非线性，通过避雷器的电流瞬间达到数千安培，避雷器处于导通状态，释放过电压能量，从而有效地限制了过电压对输变电设备的侵害。
The zinc oxide arrester is the most advanced over-voltage protector in the world, due to make the resistor disc of core component mainly adopt zine oxide arrester, compared with the conventional siliconcarbide arrester, this presciption of the product improves greatly the volt-Ampere charateristics of the resistor disc and increased through-current capability at over-voltage so as to bring a radical changes for the characteristics of the arresters.
正常使用条件 Normal service conditions:
1.环境温度不高于+40℃，不低于-40℃；
2.海拔高度不超过1000-2000m（高原地区应在订货时注明）；
3.交流系统频率50Hz或60Hz；
4.长期施加在避雷器上的工频电压应不超过避雷器持续运行电压；
5.最大风速不超过35m/s；
6.地震烈度7度及以下地区；
7.污染地区要注明。
The ambient air temperarture is no higher than +40 degree. no lower than -40 degree.
The altitude above sea level does not exceed 1000~2000m (the altiplanoarea should be indicated when order).
AC system frequency 50~60HZ.
Industrial frequency voltage brought to bear on arrester for a long time does not exceed arrester’s sustained operation voltage.Maximum wind speed not exceed 35m/s.
The earthquake intensity does not exceed 7 degrees.
The filthy area should be given b indication.
技术性能 Technical perbance:
产品性能符合GB11032-2000、IEC60099-4
The technical perbance of the product is in confirm to IEC60099-4, IEC37-199/CDV, standard technical requirements.
型号说明 Type instruction
