浅谈220kV及以下变电站无间隙金属氧化物避雷器的选择

Shallowly Discusses Ceaseless Metal Oxide Compound Arrester Choice in 220kV and Following Transformer Substation

无间隙金属氧化物避雷器以其优良的非线性伏安特性,吸收能量大,保护性能好等优点,在电力系统中越来越广泛的得到应用。然而,只有正确的选择了系统中各电压等级的避雷器,才能真正对被保护对象起到应有的保护作用。实际应用中,存在呆板的套用国家电网公司典型设计的现象,对实际的保护对象不做具体考证,本文,按电压等级和被保护对象做了一些简单的分析,以供选型时参考。

Ceaseless metal oxide compound arrester by its fine non-linear voltage-current characteristic, absorbed energy big,protects the performance to be good and so on the merit,more and more widespread obtains the application in the electrical power system.However,only had in the correct choice system various voltages rank arrester,could truly to get up the protective function by the protection object which should have.In the practical application,exists stereotypically applies mechanically the national electrical network company model design the phenomenon, does not make the concrete textual research to the actual protection object.This article,has been made according to the voltage rank and by the protection object some simple analyses, supplies when the shaping reference.