Results 51 to 60 of about 9,079 (268)

Silicon carbide varistors

Transformers Magazine, 2022
Current transformers are used to monitor large currents within power grids and power stations, producing a current in the device’s secondary winding that is proportional to the current flowing in its primary winding. Varistors are used to protect current transformers by preventing an open circuit condition if the secondary is disconnected, which can ...
Galvin, Dr. Tom, Coll, Dominic
openaire   +2 more sources

Surface Flashover in 50 Years: III. Extreme Environments and Industrial Challenges

High Voltage, Volume 11, Issue 1, Page 100-142, February 2026.
ABSTRACT Modern high‐voltage electrical equipment operates in complex environments where surface conditions are subjected to multifaceted influences from electric fields, thermal gradients, contaminants, irradiation and other extreme environmental factors.
Zhen Li, Heng Zhang, He Gao, Ji Liu, Yoshimichi Ohki, George Chen, Shengtao Li   +6 more
wiley   +1 more source

Varistores à base de WO3 - revisão [PDF]

Matéria (Rio de Janeiro), 2016
Varistores são elementos que fazem parte do sistema de transmissão e distribuição de energia elétrica ou de instalações elétricas especiais. Estes dispositivos são amplamente produzidos variando a escala, dependendo de sua aplicação, como dispositivos de baixa voltagem, com poucos grãos, exibindo ruptura de alguns volts, a vários kilovolts como usado ...
Oliveira, Marcelo Moizinho, Pessoa, Pedro Alberto Pavão, Brito, Ronilson Lopes, Rangel, José Hilton Gomes, Vasconcelos, Jomar Sales, Longo, Elson   +5 more
openaire   +5 more sources

Simulation‐Based Material Design for HVDC Cable Accessories

High Voltage, Volume 11, Issue 1, Page 25-36, February 2026.
ABSTRACT The worldwide increasing demand for electricity, coupled with the need for more reliable infrastructures and more interconnected networks, has put forward high voltage direct current (HVDC) technologies for energy transmissions. Questions still arise as regards synthetic insulation for cable systems and accessories, as it remains one of the ...
Thi Thu Nga Vu, Gilbert Teyssèdre, Séverine Le Roy   +2 more
wiley   +1 more source

Optimizing Bi2O3 and TiO2 to achieve the maximum non-linear electrical property of ZnO low voltage varistor [PDF]

, 2013
In fabrication of ZnO-based low voltage varistor, Bi2O3 and TiO2 have been used as former and grain growth enhancer factors respectively. Therefore, the molar ratio of the factors is quit important in the fabrication.
Abdollahi, Yadollah, Ahmad Tamili, Siti Norazilah, Aziz, Raba'ah Syahidah, Dorraj, Masoumeh, Matori, Khamirul Amin, Mohd Shahrani, Nuraine Mariana, Mohd Sidek, Nurhidayati, Moosavi, Seyedehmaryam, Zakaria, Azmi   +8 more
core   +1 more source

Technical Progress, Challenges and Prospects of HVDC Cable Accessories: A Review With Chinese Practice Insights

High Voltage, Volume 11, Issue 1, Page 1-24, February 2026.
ABSTRACT With the development of deep‐sea wind power and large‐scale onshore clean energy, the global demand for higher voltage level DC cable power transmission technology has become increasingly urgent. This paper systematically reviews the technical advancements in high voltage direct current (HVDC) cable accessories, addressing design challenges of
Zongxi Liu, Benhong Ouyang, Kaiwen Huang, Yuli Wang, Jiankang Zhao, Peng Zhao   +5 more
wiley   +1 more source

Abnormal Expansion Along the Synthesis of Zinc Stannate: A Way for Porous Ceramics Without Addition of Pore Generators

Journal of the American Ceramic Society, Volume 109, Issue 2, February 2026.
The abnormal expansion associated with the simultaneous synthesis and sintering of Zn2SnO4 from ZnO and SnO2 is due to the reaction mechanism and correlated with the conversion. This phenomenon opens the way to manufacture porous ceramics without the addition of pore generators, simplifying the process, and especially the thermal treatment.
María José Orts, Eugeni Cañas, Valentín Pérez‐Herranz, Sergio Mestre   +3 more
wiley   +1 more source

Sintesis de ceramicos de ZnO dopados con praseodimio y cobalto

Materials Research, 2003
Zinc oxide, ZnO, is a very interesting compound in science and electronic ceramics technology. ZnO ceramics containing some additives were reported to show varistor action with excellent nonlinearity in current - voltage characteristics.
Ana Milena Cruz, Humar Avila, Jorge Enrique Rodríguez-Páez, Mirian Susana Castro   +3 more
doaj   +1 more source

Sintering of tin oxide and its applications in electronics and processing of high purity optical glasses Sinterização de óxido de estanho e sua aplicação em eletrônica e no processamento de vidros ópticos de alta pureza

Cerâmica, 2001
Tin oxide is an n type semiconductor material with a high covalent behavior. Mass transport in this oxide depends on the surface state promoted by atmosphere or by the solid solution of aliovalent oxide doping.
J. A. Varela, L. A. Perazolli, J. A. Cerri, E. R. Leite, E. Longo   +4 more
doaj   +1 more source

Enhanced dielectric response and non-Ohmic properties of Ge-doped CaTiO3/CaCu3Ti4O12

Journal of Asian Ceramic Societies, 2022
We present a method for increasing the dielectric constant of CaTiO3/CaCu3Ti4O12 (CTO/CCTO) composites and retaining a low-loss tangent (tanδ) by doping with Ge dopant.
Jirata Prachamon, Jakkree Boonlakhorn, Narong Chanlek, Nutthakritta Phromviyo, Viyada Harnchana, Pornjuk Srepusharawoot, Ekaphan Swatsitang, Prasit Thongbai   +7 more
doaj   +1 more source