XAGET Metal oxide arrester features

high performance movs blocks varistor valve main ingredient is zinc oxide, zinc oxide varistor has a very excellent nonlinear characteristics. Under normal operating voltage of the resistance value is high, in fact, equivalent to an insulator, and over-voltage action, the resistance of the resistor is very small, residual pressure is very low. But under normal operating voltage, since the valve frequency voltage is applied to long-term exposure arising from deterioration caused by changes in resistance characteristics, resulting in increased flow through the valve leakage current. The resistive component of the current sharp increase in temperature will rise valves on thermal collapse, severe, or even cause explosion? AC and DC High Performance MOV . In accordance with the provisions of rules 1, XAGET Metal oxide arrester total of six test items, namely (1) Insulation resistance (2) leakage current DC U1mA and 0.75U1mA under (3) AC operation voltage leakage current (4) Power frequency frequency reference voltage (5) Base insulation resistance (6) Check discharge counter action case reference current.