high voltage electrical apparatus

Zn lighting arrester is a kind of protecting equipment preventing electric equipments in AC pewer system from high voltage and over-voltage operation. Zno lighting arrester is akind ofworld advanced over-voltage protector at present,due to its core components of resistance applying Zno and other metal oxide to make of ,comparing with tradittional carborundum arrester,it improves greatly V-A characteristics of resistance increases the getting trough ability of resistance,thereby it brings fundamental change to features of arrester. Under normal sorking voltage,the current passing arrester only is uA class,when bearing over voltage,the execellent non-linear V-A features of arrester would make effect,the curent passing through the arrester increase ,to relesae over-voltage energy,therefore if effective limits the damage to power transmission equipments due to over Voltage.