Arrester Series

Arester is a kind of overvoltage protector mainly appled for the proteclion of various electrical appliances (such as transformer ,switchcapacitor ,trap, mutual inductor ,generator ,motor and power cable etc.) in power system .ralway electrication system and communicationsystem from being damaged by atmosphere overvoltage, operaion overvoltage and power frequency temporary overvotage etc. The arresteliis the basis ofinsulalion coordinalion in power svstem, The core elements ol melal oxide arrester lresistor disci apoles an advanced formulate with zinc oxide as the main malerial and has an outstanding nonlinear properies (voltage-ampere).That is, under the normal operatingvoltage, the current passing through is only on microampere level, When overvoltage is incurred the current passing through can be thousands of amperes instantly and the arrester is switched into conduction to release the energy of overvolage. By this means the damage causedby overvoltage on the electric transmission and transformation equipments can be efectively restrained .The traditional slicon carbide arrester has high steep wave discharging voltage caused by steep wave discharging and the operatin wave discharging voltage is high caused bydischarging decentrality .While the zinc oxide arrester has good steep wave response properties and make no delay on steep wave voltageand provide low residual vollage during operation; and also has the advantage of no discharging decentrally .The aresler can grealy improvethe protective margin of the steep wave and operation wave, And on insulalion coordinalion, the proaclive margins of steep wave. liohtenincwave and ooeralion wave are neariy consistent and best oroteclion can be provided for the power eouioments, Composte coaling melal oxidarrester applies integraled extruding shaping and both-end envelopment techniques and can provide high performances of sealing and antiexplosion ,polution resistance, free of cleaning and reducing the wet fashover in foggy conditions .The product is also featured by electricaerosion resistance ,aging resistance ,small volume, ight weight and easy installation and maintenance; and is the upgraded new generationproduct of porcelain sheath arrester.