Results 21 to 30 of about 13,342,243 (92)

Superconducting transformers

, 2004
The paper provides an overview of power applications of High Temperature Superconductivity (HTS) with emphasis on superconducting transformers. Properties of available HTS materials are reviewed and modelling aspects briefly introduced.
Sykulski, Jan
core   +1 more source

Practical application of on-line partial discharge monitoring technique on 500kV shunt reactor

, 2003
Considering the damage mechanism of oil-impregnated paper insulation in power transformers, shunt reactors and other high voltage electrical apparatus caused by partial discharge, a concept of “destructive partial discharge” is introduced in this paper ...
Fu, M, Wang, S, Chen, G
core   +1 more source

Influência dos canais de instrumentação na exatidão da medição fasorial sincronizada [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2010Neste trabalho, investiga-se a influência exercida pelos Canais de Instrumentação (CIs) na exatidão ...
Lira, Ricardo
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Surface tracking in the inter-phase region of large transformers

, 2008
Transmission and distribution operators throughout the world manage significant populations of ageing large transformers which use mineral oil and paper as the dielectric insulation.
Mitchinson, Peter Mark
core   +1 more source

Low cost procedure for frequency characterization of voltage instrument transformers [PDF]

, 2019
The paper introduces a simplified method for the frequency characterization of instrument transformers for transmission and distribution grids.
D. Gallo, Luiso M., M. Luiso, G. Crotti, Letizia, P. S., Luiso, M., Letizia P. S., A. Delle Femine, Landi, C., C. Landi, Landi C., Crotti, G., Giordano D., Gallo D., Delle Femine A., Crotti G., D. Giordano, Giordano, D., Gallo, D., P. S. Letizia, Delle Femine, A.   +20 more
core   +1 more source

Low power current transformers

, 2018
Master‘s thesis is focused on current instrument transformers, current sensors and low power current transformers. Discussion is made on advantages and disadvantages of each measuring principle.
Zolich, Ladislav
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Desenvolvimento de uma bancada para ensaios de transformadores de corrente de alta tensão em frequências distintas da industrial: [dissertação] [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia ElétricaEste trabalho apresenta como proposta principal o desenvolvimento de uma bancada para ensaio de transformadores de ...
Antônio Júnior, Afrânio de Castro
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Low Power instrument Transformer: technologies and applications

, 2022
Instrument transformers serve an important role in the protection and isolation of AC electrical systems for measurements of different electrical parameters like voltage, current, power factor, frequency, and energy.
Ahmed, Wasey
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Application of electro-optic modulation technique for PD monitoring of power transformers

Partial discharge (PD) detection is an important technique for assessing the health of high voltage power transformers. A partial discharge signal within an oil-filled power transformer may reach a winding first, then travel along the winding to the ...
Sutton, Simon, Tian, Y., Lewin, P.L., Swingler, S.G., Hao, L., Wilkinson, J.S.   +5 more
core   +1 more source

Quantitative Analysis Ageing Status of Natural Ester-paper Insulation and Mineral Oil-paper Insulation by Polarization/Depolarization Current

, 2012
Polarization and Depolarization Current (PDC) technique is an effective tool to assess the condition of oil-paper insulation system in power transformers. So far the PDC behaviors of mineral oil-paper insulation have been widely investigated.
Yang, Lijun, Hao, Jian, Liao, Ruijin, Ma, Zhiqin, Chen, George   +4 more
core   +1 more source