The Applications of High voltage varistor

To protect telecommunication lines, transient suppression devices such as 3 mil carbon blocks (IEEE C62.32), ultra-low capacitance varistor metal oxide , and avalanche diodes are used. For higher frequencies, such as radio communication equipment, a gas discharge tube (GDT) may be utilized.[citation needed] A typical surge protector power strip is built using xatge MOV . Low-cost versions may use only one varistor, from the hot (live, active) to the neutral conductor. A better protector contains at least three varistors; one across each of the three pairs of conductors. In the United States, a power strip protector should have an Underwriters Laboratories (UL) 1449 3rd edition approval so that catastrophic MOV failure does not create a fire hazard.

The Applications of varistor metal oxide

 To protect telecommunication lines, transient suppression devices such as 3 mil carbon blocks (IEEE C62.32), ultra-low capacitance varistor metal oxide , and avalanche diodes are used. For higher frequencies, such as radio communication equipment, a gas discharge tube (GDT) may be utilized.[citation needed] A typical surge protector power strip is built using xatge MOV . Low-cost versions may use only one varistor, from the hot (live, active) to the neutral conductor. A better protector contains at least three varistors; one across each of the three pairs of conductors. In the United States, a power strip protector should have an Underwriters Laboratories (UL) 1449 3rd edition approval so that catastrophic MOV failure does not create a fire hazard.

Zinc Oxide blocks

Nano-block body,ZnO varistor refined grains make the material easy to cause transgranular fracture, will help improve the toughness; grain refinement contributes to slip between the grains, the material has plastic behavior; grain refinement the strength of the ceramic material can also greatly increased [6,7]. Currently nano Sintering more are ZrO2, AI2O3, TiO2 [8,9]. Semiconductor nano-ZnO low-density bulk impedance spectroscopy has been reported [10]. But during sintering of nano Zinc Oxide blocks nanocrystals growth it has not been reported. Studied law during sintering grain growth of ZnO 20nm average particle size of paper as the raw material, the application of grain growth phenomenological theory of kinetic equations to determine the index of grain growth kinetics and the apparent activation energy, and with the rough sintered polycrystalline material was compared, we discussed the mechanism of nano xatge MOV sintered. It laid the foundation for the sintering and application of semiconductor material nanometer ZnO.