Advantages Surge arrester

Only new arrester Glass Coating varistors, varistors are sintered metal oxides such as zinc oxide made of polycrystalline semiconductor ceramic element, with the ideal valve characteristic. At the same time non-linear coefficient, good protection features, high energy absorption capacity, high flow capacity, simple structure and good stability.
Non-linear coefficient α is very small. When the metal oxide film by valve within the range of current 1mA ~ 10kA, α values ​​generally between 0.02 to 0.06. At the rated voltage is applied, the current through the small, so it can make the arrester without gaps. Good protection. It does not require the clearance operation, voltage rises once, you can quickly absorb the overvoltage energy, suppress over-development voltage; a good response characteristic steepness; gapless oxide arrester performance is almost independent of temperature, humidity, barometric pressure, Effect of contamination and other environmental conditions, and thus stable performance.
metal oxide arresters essentially free-wheeling action load light, resistant and repeat ability. Voltage characteristic is symmetrical, polarity does not matter, it can be made into DC arrester.