Results 41 to 50 of about 25,281,968 (246)

Corrosion Mechanism for Copper Sulfide Formation Induced by Dibenzyl Disulfide in Oil-Immersed Insulation

open access: yesIEEE Access, 2019
This paper investigated the influence of paper-wrapped on the deposition of sulfur corrosion on the insulation winding (paper-wrapped copper conductor) in oil-immersed insulation containing dibenzyl disulfide (DBDS).
Si-Hang Gao, Li-Jun Yang, Dong Ding
doaj   +1 more source

Life cycle of transformer oil [PDF]

open access: yesHemijska Industrija, 2008
The consumption of electric power is constantly increasing due to industrialization and population growth. This results in much more severe operating conditions of transformers, the most important electrical devices that make integral parts of power ...
Đurđević Ksenija R.   +2 more
doaj   +1 more source

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

open access: yesAdvanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao   +3 more
wiley   +1 more source

Time-Dependent Electric Field Distribution in Layered Paper-Oil Insulation [PDF]

open access: yes, 2019
Layered paper–oil insulation is used in several types of HVDC equipment. In order to better understand breakdown mechanisms and optimize the design, it is important to understand the electric field distribution in the insulation.
Håkonseth, Gunnar, Ildstad, Erling
core   +2 more sources

Assessing Ageing Condition of Mineral Oil-Paper Insulation by Polarization/Depolarization Current

open access: yes, 2011
Accurately assessing the ageing status of oil-paper insulation in transformer is essential and important. Polarization and Depolarization Current (PDC) technique is effective in assessing the condition of oil-paper insulation system.
Liao, R, Hao, J, Yang, L, Ma, Z, Chen, G
core   +1 more source

AC/DC Superimposed Breakdown Characteristics and Electric Field Simulation Analysis of Oil-Paper Insulation in Converter Transformers

open access: yesEAI Endorsed Transactions on Energy Web
This study investigates the electric field distribution and breakdown characteristics of oil-paper insulation in a 500 kV converter transformer under AC/DC superimposed voltages. The electric field distribution within the winding end insulation structure
Xiaofan Huang   +3 more
doaj   +1 more source

Wafer‐Scale Dendritic Nanoporous Platinum Films for Neural Electrodes

open access: yesAdvanced Science, EarlyView.
Wafer‐scale dendritic nanoporous platinum films with intrinsic nanoscale porosity are synthesized by suraface‐confined wet chemistry and transferred onto flexible substrates to create tissue‐conformal neural electrodes. The ultrathin films combine mechanical flexibility with electrochemical stability, enabling low‐impedance, high‐capacitance interfaces
Kyeongbin Kang   +14 more
wiley   +1 more source

Effect of thermally aged oil on space charge dynamics in oil/paper insulation system

open access: yes, 2011
The formation of space charge in oil/paper insulation system can lead to material degradation in the high electrical field region and affect system reliability.
Hao, Jian, Liao, Ruijin, Chen, George
core   +1 more source

Effect of Moisture on Breakdown Characteristics of Oil paper Insulation in Complicated Electric Field

open access: yesJournal of Harbin University of Science and Technology, 2020
In order to study the effect of moisture on breakdown characteristics of oilpaper insulation in complex electric field, this paper obtains the dielectric constant characteristics, conductive characteristics, dielectric loss characteristic and breakdown ...
LIU Qingsong   +5 more
doaj   +1 more source

Analysis of low‐frequency polarisation behaviour for oil‐paper insulation using logarithmic‐derivative spectroscopy

open access: yesHigh Voltage, 2021
The low‐frequency polarisation information of oil‐paper insulation could be easily obscured by the conductance effect, and the contained polarisation information thus can not be readily extracted from the frequency domain spectroscopy (FDS).
Jiefeng Liu   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy