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http://dx.doi.org/10.4313/JKEM.2004.17.8.835

Clamping Voltage Characteristics of ZPCCE-Based Varistors with Sintering Temperature  

남춘우 (동의대학교 전기공학과)
박종아 (동의대학교 전기공학)
김명준 (동의대학교 전기공학)
유대훈 (동의대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.17, no.8, 2004 , pp. 835-839 More about this Journal
Abstract
The surge characteristics of ZnO varistors consisting of $ZnO-{Pr}_6{O}_11-CoO-{Cr}_2{O}_3-{Er}_2{O}_3$ceramics were investigated at various sintering temperatures. As sintering temperature raises, the varistor voltage was decreased from 341.2 to 223.1 V/mm, the nonlinear exponent was decreased from 64,9 to 44.1. On the other hand, the leakage current exhibited a minimum(0.64 $\mu$A) at 134$0^{\circ}C$, The clamping capability was slightly deteriorated with increasing sintering temperature. On the whole, the ZPCCE-based ZnO varistors exhibited good clamping voltage characteristics as exhibiting the clamping voltage ratio of 1.85 ∼ 1.92 approximately at surge current of 100 A.
Keywords
Ceramics; Varistors; Surge; Clamping voltage ratio;
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  • Reference
1 Compositional effects on the liquid-phase sintering of praseidymium oxides-based zinc oxieds varistors /
[ A. B. Alles;R. Puska;G. Callahan;V. L. Burdick ] / J. Amer. Ceram. Soc.   DOI   ScienceOn
2 /
[ ニュ-ケラスシ-リズ 編集委員會 ] / 반도체 セラミクスと その應用
3 酸化亞鉛避電器の 特性と 評價試驗法 /
[ 電氣學會 ] / 電氣學會技術報告
4 Zine oxide varistors with praseodymium oxied /
[ K. Mukae ] / Ceram. Bull.
5 ZnO-<TEX>$Pr_6O_{11}-CoO-Er_2O_3$</TEX>계 바리스터의 안정성에 관한 연구 /
[ 남춘우 ] / 전기전자재료학회논문지
6 ZPCCE계 바리스터의 미세구조와 전기적 성질 및 안정성 /
[ 남춘우;윤한수;류정선 ] / 전기전자재료학회논문지
7 Pr6O11계 ZnO 바리스터의 DC 가속열화특성 /
[ 남춘우;류정선 ] / 전기전자재료학회논문지
8 The nonlinear properties and stability of ZnO-<TEX>$Pr_6O_{11}-Cr_2O_3-Er_2O_3$</TEX> ceramic varistors /
[ C. W. Nahm ] / Mater. Lett.   DOI   ScienceOn
9 The nonlinear properties and d.c degradation characteristics of ZPCCE-based varistors /
[ C. W. Nahm;H. S. Yoon;J. S. Ryu ] / J. Mater. Sci. Lett.   DOI   ScienceOn
10 /
[ International Electrothechnical Committee ] / IEC 1000-4-series, Elctromagnetic Cmpatibility
11 Lineal intercept technique for measuring grain sizc in two-phase polycrystalline ceramics /
[ J. C. Wurst;J. A. Nelson ] / J. Amer. Ceram. Soc.   DOI
12 Pr6O11계 ZnO 바리스터의 전기적 안정성에 소결온도의 영향 /
[ 남춘우;류정선 ] / 전기전자재료학회논문지
13 Effect of <TEX>$Er_2O_3$</TEX> addition on the microstructure, electrical properties, and stability of <TEX>$Pr_6O_{11}$</TEX>-based ZnO ceramic baristors /
[ C. W. Nahm;C. H. Park ] / J. Mater. Sci.   DOI   ScienceOn
14 ZnO-<TEX>$Pr_6O_{11}-Cr_2O_3-Er_2O_3$</TEX> based-ceramic varistors with high stability of nonlinear properties /
[ C. W. Nahm ] / J. Mater. Sci. Lett.   DOI   ScienceOn