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zinc oxide arrester
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.
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 zinc oxide arrester. Compared with the conventional silicon carbide arrester, this prescription of the product improves greatly the Volt-Ampere characteristics of the resistor disc and increased through current capability at over-voltage so as to bring radical changes for the characteristics of the arresters.
Under the circumstance of normal operating voltage, the current through the arrester is just on micro ampere degree. When suffered from over-voltage, the arresters excellent nonlinear characteristics will make the current through the arrester increase to several thousand amperes, while the arrester will be under the circulating state and release over-voltage energy so as to protecting the power transmission equipments against the damage caused by the over-voltage.
The technical performance of the product is in conform to GB 11032-200, IEC60099-4, IEC37-199/CDV, standard technical requirements.