Surge arrester is a kind of voltage limiter, which is used to protect transmission & distribution equipments (such as transformer, switch, capacitor, voltage transformer, generator, motor and power
cable etc.) from being damaged by over-voltage. As main components of metal surge arresters, our resistors feature non-linear characteristics (V-I), quick steep wave response, strong current-flow capacity and anti-ageing ability and so on. They greatly improve the protection ability and reliability of surge arresters.We adopt the process of whole-injection formation and sealing from both terminal sides for composite housed metal oxide surge arresters and they feature good sealing performance, excellent anti-explosion, anti-dirty, anti-power eroding, anti-ageing, small volume and light weight etc. They are also easy for installation and maintenance.Porcelain housed metal oxide surge arresters are of good construction, lasting sealing performance, even potential distribution and reliable pressure relief apparatus.