Results 71 to 80 of about 17,532 (305)

Ageing characteristics and lifetime model of oil–paper insulation for oil‐immersed paper condenser bushing

open access: yesHigh Voltage, 2021
This study extensively investigated the ageing characteristics and lifetime model of oil–paper insulation for oil‐immersed paper condenser bushing. The accelerated thermal and electrothermal ageing experiments of oil‐immersed paper condenser bushing were
Sihang Gao, Lijun Yang, Tingjing Ke
doaj   +1 more source

Advanced Separators for Liquid and Quasi‐Solid Lithium Rechargeable Batteries: Design and Development

open access: yesAdvanced Materials, EarlyView.
This review traces the evolution of lithium‐ion battery separators from passive barriers to multifunctional components central to cell safety and performance. Polymer‐ceramic hybrids, nanofiber architectures, and bio‐derived membranes deliver ionic conductivities above 3 mS cm−1, thermal stability beyond 200 °C, and effective suppression of lithium ...
Karthik Vishweswariah   +5 more
wiley   +1 more source

Alternative Dielectric Fluids for Transformer Insulation System: Progress, Challenges, and Future Prospects

open access: yesIEEE Access, 2019
Ester-based dielectric fluids have gained widespread popularity for applications in high voltage apparatus. Synthetic and natural esters have been subjected to research for decades vis-à-vis mineral insulating oils around the world. Although many
U. Mohan Rao   +5 more
doaj   +1 more source

Investigation of the Dielectric and Thermal Properties of Non-Edible Cottonseed Oil by Infusing h-BN Nanoparticles

open access: yesIEEE Access, 2020
Vegetable oils have emerged as insulating fluids in transformer applications and as a prominent and effective alternative for traditional dielectric fluids.
Rizwan A. Farade   +6 more
doaj   +1 more source

Terahertz time-domain spectroscopy of edible oils. [PDF]

open access: yes, 2017
Chemical degradation of edible oils has been studied using conventional spectroscopic methods spanning the spectrum from ultraviolet to mid-IR. However, the possibility of morphological changes of oil molecules that can be detected at terahertz ...
Abbott, Derek   +2 more
core   +2 more sources

Influence of Carbon Nanoparticles on Electrically Induced Wear of Grease‐Lubricated Steels

open access: yesAdvanced Materials Interfaces, EarlyView.
When an electric current enters a pair of rubbing surfaces, enormous damage takes place. In this research, how such damage occurs in the presence of protective grease and the mitigation with added carbon nanoparticles, were investigated. It was discovered that those particles regulate transport and interfacial electrical stability of the grease ...
Mohammad Humaun Kabir   +6 more
wiley   +1 more source

Process for Simultaneous Removal of S8, DBDS, and PCBs From Mineral Insulating Oils

open access: yesIEEE Access
The presence of corrosive sulfur and polychlorinated biphenyls (PCBs) in mineral insulating oils poses significant challenge to the reliability of power transformers and presents serious environmental risks.
Dejan M. Kolarski   +4 more
doaj   +1 more source

Evaluation of Light Crude Oil for Transformer Application

open access: yesJournal of King Saud University: Engineering Sciences, 1989
A sample of light distillate cut of crude oil of Saudi origin has been solicited and evaluated to be adopted as insulating oil. The sample was procured from a commercial local refinery.
Abdulaziz A. El-Sulaiman   +4 more
doaj   +1 more source

Multilevel metallization method for fabricating a metal oxide semiconductor device [PDF]

open access: yes, 1978
An improved method is described of constructing a metal oxide semiconductor device having multiple layers of metal deposited by dc magnetron sputtering at low dc voltages and low substrate temperatures. The method provides multilevel interconnections and
Bouldin, D. L.   +3 more
core   +1 more source

Investigation on the lightning breakdown voltage of palm oil and coconut oil under non-uniform field [PDF]

open access: yes, 2014
The increasing interests on the Palm Oil (PO) and Coconut Oil (CO) as a potential alternative for dielectric insulating fluid in transformers encourage a number of researches on different aspects of these oils.
Ab Kadir, Mohd Zainal Abidin   +6 more
core   +1 more source

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