I. Overview 
 MOA-30kV detector zinc oxide arrester is specifically designed to detect power system 10kV and below, zinc oxide surge arresters without gaps for electrical contact between the valve bad MOA of internal defects, measuring MOA DC reference voltage (U1mA) and 0.75 U1mA leakage current under . The instrument will be the DC high voltage power supply, measurement and control system integration, all components concentrated in a chassis, with a small size and light weight characteristics of the power system and the production of zinc oxide arrester equipment essential to plant field trials. 
 Second, product technical parameters 
 1, measuring range: voltage 0 ~ 30kV Current: 0 ~ 1000μA 
 2, Accuracy: 1% voltage 
 3, the ambient temperature: 0 ~ +40 ℃ 
 4, relative humidity: 25 ℃ ≤ 85% when 
 5, elevation: <1000M 
 6, supply voltage: 220V ± 10% 
 7, Power frequency: 50 ± 1HZ