AH-DZP metal oxide surge arrester

The AH-DZP Metal Oxide Arrester features a fully overmolded construction and is designed for the harsh outdoor environments associated with traction power systems.
The microstructure of metal oxide resistors is mainly composed of zinc oxide grains, grain boundary layers and spinel phases. Its conductive mechanism is generally believed to be: Zinc oxide grains have good conductivity, and the voltage applied to the zinc oxide grains almost all acts on the high-resistance grain boundary layer. The nonlinearity of the resistor sheet mainly comes from the grain boundary layer ( With bismuth oxide as the main component), the spinel phase is scattered in the grain boundary layer. It is a composite oxide composed of zinc oxide and bismuth oxide. Its function is to inhibit the growth of zinc oxide grains and make the resistor film more durable. Excellent nonlinear characteristics.