Results 31 to 40 of about 10,701 (258)

Leakage Current Measurements of Surge Arresters

Energies, 2023
The paper presents the methods of assessing the technical condition of varistor surge arresters used in laboratory tests and in operation—performed without disconnecting the arresters from the network.
Marek Olesz, Leszek S. Litzbarski, Grzegorz Redlarski   +2 more
doaj   +1 more source

Electrical properties of magnesium titanate ceramics post-sintered by hot isostatic pressing [PDF]

Science of Sintering, 2017
Post-sintering of magnesium titanate ceramics by hot isostatic pressing (HIP) in an oxygen-free atmosphere significantly alters various electrical properties of the product. In particular, the sintered material becomes a semiconductor.
Đorđević Antonije R., Olćan Dragan I., Obradović Nina, Paunović Vesna, Filipović Suzana, Pavlović Vladimir B.   +5 more
doaj   +1 more source

Varistor coupling method and recommendation parameters for combination wave test

IET Science, Measurement & Technology, 2023
Varistor coupling is recommended by International Telecommunication Union in combination wave test waveforms of surge protective devices (SPD), although the varistor coupling method and recommendation parameters for the combination wave test are not well
Mi Zhou, Weihan Zhao, Dongdong Wang, Haoshen Fan, Li Cai, Jianguo Wang, Yadong Fan   +6 more
doaj   +1 more source

The Degradation of Epoxy Resin-Coated ZnO Varistors at Elevated Temperatures and Ambient Humidity Conditions

Active and Passive Electronic Components, 2003
The degradation of the epoxy resin-coated commercial ZnO varistors at elevated temperatures and ambient humid conditions has been investigated experimentally.
Jianying Li, Shengtao Li, M. A. Alim, G. Chen   +3 more
doaj   +1 more source

Revisão: efeito dos metais doadores nas propriedades elétricas e microestruturais dos varistores cerâmicos à base de SnO2 Review: effect of donor metals on the electrical and microstructural properties of SnO2-based ceramic varistors

Cerâmica, 2008
O estudo da adição de dopantes trivalentes é uma das principais pesquisas na área de varistores. Vários autores têm buscado entender os efeitos destes dopantes nas propriedades elétricas e microestruturais destas cerâmicas eletrônicas.
M. M. Oliveira, J. H. G. Rangel, V. C. de Sousa, E. Longo, R. N. R. Filho   +4 more
doaj   +1 more source

Random manifolds in non-linear resistor networks: Applications to varistors and superconductors

, 2001
We show that current localization in polycrystalline varistors occurs on paths which are, usually, in the universality class of the directed polymer in a random medium.
A Donev, Ahuja R K, Alava M J, Bouchaud E, C E Musolff, Clarke D R, Cormen T H, Middleton A A, P M Duxbury, Porto M, Riedinger R, Roux S, Sahimi M, Seppälä E T, Stinchcombe R B   +14 more
core   +1 more source

Coordination of Varistors With Transient Voltage Suppression Diodes in Automotive DC Systems

IEEE Transactions on Vehicular Technology
The coordination of metal-oxide varistors with transient voltage suppression diodes commonly employed for the protection of sensitive electronic equipment in DC automotive systems is experimentally investigated.
E. Staikos, A. Hadjicostas, G. Peppas, T. Tsovilis   +3 more
semanticscholar   +1 more source

Non-Linear I-V Characteristics of Double Schottky Barriers and Polycrystalline Semiconductors

, 1992
An attempt to determine theoretically the highly non-linear current-voltage (I-V) characteristics of polycrystalline semiconductors, such as ZnO-based varistors, is made from the electrical properties of individual grain boundaries under dc bias.
Bernasconi, Blatter, Blatter, Clerc, E. Canessa, Eda, Eda, Einzinger, Greuter, Kenkel, Kirkpatrick, Levinson, Levinson, Levinson, Mahan, Mahan, Mahan, McLachlan, Niemeyer, Olsson, Olsson, Olsson, Petermann, Pike, Seager, Takayasu, Tao, Tonkoshkur, Tua, V.L. Nguyen, Werner   +30 more
core   +1 more source

Προστασία επαφών ηλεκτρονόμου με varistor [PDF]

, 2016
Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία.
Mavrakis, Vasileios, Μαυράκης, Βασίλειος   +1 more
core   +1 more source

Caracterização elétrica de blocos varistores à base de SnO2 Electrical characteristics of SnO2-based varistor blocks

Cerâmica, 2012
Neste trabalho foi realizado um estudo das propriedades elétricas de blocos varistores à base de SnO2. Foram avaliadas a não linearidade destas cerâmicas por meio da caracterização tensão-corrente, bem como a altura, largura e os portadores de cargas por
R. L. Brito, P. A. P. Pessôa, J. S. Vasconcelos, L. P. S. dos Santos, J. H. G. Rangel, E. Longo, V. C. de Sousa, M. A. Ramirez, M. M. Oliveira   +8 more
doaj   +1 more source