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Metal Oxide Arreeter 氧化鋅避雷器
適用范圍氧化鋅避雷器主要用于保護配電變壓器、電纜頭變電站中的電氣設備免受大氣過電壓和操作過的電壓損壞。 Appliation: The ZnO arrester is mainly used to protect distribution transformer, cable connector and electric equipment from being damaged by lightning impulse voltage and operated over-voltage.
功能特點
技術參數
經典案例
基本原理 Keystone:
氧化鋅避雷器是目前國際最先進的過電保護器。由于其核心元件采用氧化鋅電阻片，與傳統碳化硅避雷器相比，改善了避雷器伏安特性，提高了過電壓通流能力，從而帶來避雷器特征的根本變化。
當避雷器在正常工作電壓下，通過避雷器的電流僅有微安級，當遭受過電壓時，由于氧化鋅電阻片的非線性，通過避雷器的電流瞬間達到數千安培，避雷器處于導通狀態，釋放過電壓能量，從而有效地限制了過電壓對輸變電設備的侵害。
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.
正常使用條件 Normal service conditions:
1.環境溫度不高于+40℃，不低于-40℃；
2.海拔高度不超過1000-2000m（高原地區應在訂貨時注明）；
3.交流系統頻率50Hz或60Hz；
4.長期施加在避雷器上的工頻電壓應不超過避雷器持續運行電壓；
5.最大風速不超過35m/s；
6.地震烈度7度及以下地區；
7.污染地區要注明。
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 clear indication.
技術性能 Technical performance:
產品性能符合GB11032-2000、IEC60099-4
The technical performance of the product is in confirm to IEC60099-4, IEC37-199/CDV, standard technical requirements.
型號說明 Type instruction
