{"title":"Aging of the over-voltage protection components","authors":"B. Loncar, P. Osmokrović, S. Stankovic","doi":"10.1109/MIEL.2002.1003339","DOIUrl":null,"url":null,"abstract":"The aim of this work was to examine the influence of the number of activations, i.e. over-voltage pulses, on the aging of over-voltage protection elements. Both nonlinear (gas-filled surge arresters (GFSA), varistors, over-voltage diodes), and linear (capacitors-constituents of filters) over-voltage protection elements were tested. The instruments used allowed reliable measurements, and 1000 consecutive activations were carried out. A current pulse, (I/sup max/=13 A, 16 A; T/sub 1//T/sub 2/=8/20 /spl mu/s) for non-linear elements and a double exponential over voltage pulse (1.2/50 /spl mu/s) of amplitude 320 V, 480 V and 640 V for capacitors was used. The experimental results showed that the over-voltage diodes are the most reliable elements, considering changes of characteristics as a result of aging. It was observed however that varistors, GFSAs and capacitors suffered noticeable changes in characteristics.","PeriodicalId":221518,"journal":{"name":"2002 23rd International Conference on Microelectronics. Proceedings (Cat. No.02TH8595)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2002 23rd International Conference on Microelectronics. Proceedings (Cat. No.02TH8595)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MIEL.2002.1003339","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The aim of this work was to examine the influence of the number of activations, i.e. over-voltage pulses, on the aging of over-voltage protection elements. Both nonlinear (gas-filled surge arresters (GFSA), varistors, over-voltage diodes), and linear (capacitors-constituents of filters) over-voltage protection elements were tested. The instruments used allowed reliable measurements, and 1000 consecutive activations were carried out. A current pulse, (I/sup max/=13 A, 16 A; T/sub 1//T/sub 2/=8/20 /spl mu/s) for non-linear elements and a double exponential over voltage pulse (1.2/50 /spl mu/s) of amplitude 320 V, 480 V and 640 V for capacitors was used. The experimental results showed that the over-voltage diodes are the most reliable elements, considering changes of characteristics as a result of aging. It was observed however that varistors, GFSAs and capacitors suffered noticeable changes in characteristics.
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