Comparison with the influence of different types of impulse currents on the degradation of Zinc-oxide varistors

2020 ◽  
Author(s):  
Weikang Li ◽  
Xueling Yao ◽  
Jinru Sun ◽  
Qingqing Li ◽  
Hao Wang ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Different Types ◽  
Zinc Oxide Varistors

Characterization of spinel particles in zinc oxide varistors

1990 ◽  
Vol 25 (5) ◽  
pp. 2447-2453 ◽  
Author(s):  
T. Asokan ◽  
R. Freer
Keyword(s):  
Zinc Oxide ◽  
Zinc Oxide Varistors

Reliability enhancement of zinc oxide varistors using sputtered silver electrodes

2016 ◽  
Vol 61 ◽  
pp. 91-94 ◽  
Author(s):  
Hao Jin ◽  
Xiao Xu ◽  
Yebo Tao ◽  
Bin Feng ◽  
Demiao Wang
Keyword(s):  
Zinc Oxide ◽  
Silver Electrodes ◽  
Reliability Enhancement ◽  
Zinc Oxide Varistors

Direct-Write Fabrication of Zinc Oxide Varistors

2004 ◽  
Vol 85 (1) ◽  
pp. 123-128 ◽  
Author(s):  
Valeria Tohver ◽  
Sherry L. Morissette ◽  
Jennifer A. Lewis ◽  
Bruce A. Tuttle ◽  
James A. Voigt ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Direct Write ◽  
Zinc Oxide Varistors

Thermally stimulated currents as a measure of degradation of zinc oxide varistors

2002 ◽  
Vol 157 (6-12) ◽  
pp. 1051-1055 ◽  
Author(s):  
Witold Mielcarek ◽  
Dorota Nowak-woźny ◽  
Krystyna Prociów ◽  
Adam Gubański
Keyword(s):  
Zinc Oxide ◽  
Thermally Stimulated Currents ◽  
Zinc Oxide Varistors

Polarization currents in zinc oxide varistors from 77 to 450 K

1994 ◽  
Vol 76 (11) ◽  
pp. 7367-7371 ◽  
Author(s):  
R. W. Major ◽  
A. E. Werner ◽  
C. B. Wilson ◽  
F. A. Modine
Keyword(s):  
Zinc Oxide ◽  
Zinc Oxide Varistors

Fabrication of Bismuth-Based Zinc Oxide Varistors with High Varistor Voltage by Addition of Tin and Yttrium Oxides

2013 ◽  
Vol 582 ◽  
pp. 198-201
Author(s):  
Yosuke Tokoro ◽  
Takayuki Watanabe ◽  
Yuuki Sato ◽  
Shinzo Yoshikado
Keyword(s):  
Zinc Oxide ◽  
Leakage Current ◽  
Yttrium Oxide ◽  
Tin Oxide ◽  
Molar Ratio ◽  
Low Leakage ◽  
Electrical Degradation ◽  
Low Leakage Current ◽  
Zno Varistors ◽  
Zinc Oxide Varistors

The effects of the addition of tin oxide (SnO2) and yttrium oxide (Y2O3) to bismuth (Bi)-manganese (Mn)-cobalt (Co)-silicon (Si)-chromium (Cr)-nickel (Ni)-added zinc oxide (ZnO) varistors (a basic varistor) on the varistor voltage, resistance to electrical degradation, and leakage current were investigated. The addition of SnO2increased both the varistor voltage and the resistance to electrical degradation. However, simultaneous addition of both SnO2and Y2O3increased the varistor voltage but the resistance to electrical degradation deteriorated. ZnO varistors with varistor voltage over approximately 520 V/mm, excellent resistance to electrical degradation, and low leakage current could be obtained by adding SnO2with SnO2-to-ZnO molar ratio of approximately 1:10 to the basic varistor.

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