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NEW IMPROVEMENTS TO THE MANUFACTURING PROCESS OF METAL OXIDE VARISTORS
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M. C. Vinga;M. Frigura-Iliasa;P. Andea;F. M. Frigura-Iliasa;M. Mirica
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1314-2704
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English
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18
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6.1
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Metal Oxide based Varistors are basically ceramics, acting as n ? semiconductors,
having a poly-crystalline and dense structure. The main application of these power electronic devices is for construction of overvoltage protection equipment (for every voltage level), because of some advantages like: an increased level of non-linearity between the current and the voltage characteristic, a high energy adsorption capacity and an excellent good response time, which make them ideal for protecting other sensible electronic devices and circuits, as well as large segments of power lines. This paper presents a new material and some manufacturing technology aspects for a Metal Oxide Varistor based on a new mixture of oxides used in order to obtain a new ceramic with higher non-linear electric properties. The two oxides involved are Cr2O3 and MnO2 as dopants or additives. All measurements of the electrical performances will be carried out in relation with existing 5 dopants material. |
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conference
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18th International Multidisciplinary Scientific GeoConference SGEM 2018
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18th International Multidisciplinary Scientific GeoConference SGEM 2018, 02-08 July, 2018
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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339-346
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02-08 July, 2018
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website
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cdrom
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1812
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Metal Oxide Varistors; Dopants; Manufacturing Process
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