Main Principle

·Zno lighting arrester is one kind most world advanced over-voltage protector at present. due to it's made of core components of resistance applying Zno and other metal oxide. Comparing with traditional 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 working voltage, the current passing arrester only uA class, when bearing over voltage, the escellent non-linear V-A features of arrester would make effect, the current passing through the arrester increase high to thousands of Ampere instant, the arrester is under getting through state, to release over-voltage energy, therefore it effectively limits the damage to power transmission equipments due to over Voltage.