Results 91 to 100 of about 5,815,291 (292)

Finite element method modeled dielectric response for condition evaluation of transformer insulation

, 2013
Defects such as cracks and voids in the insulation medium of a power transformer may affect the dielectric response of transformer insulation system. This paper uses the finite element method (FEM) to analysis the influence of electric field distribution
Ekanayake, Chandima, Yi Cui, Ma, Hui, Hui Ma, Saha, Tapan, Du, Peidong, Saha, Tapan K., Chandima Ekanayake, Peidong Du, Tapan K. Saha, Cui, Yi   +10 more
core   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Structure Optimization of Well-distributed High Temperature Insulation System Oil-immersed Distribution Transformer

工程科学与技术, 2017
:With the rise of safety,economic and environmental protection requirements of power systems,replacingthe insulation materials to enhance the performance of oil-immersed distribution transformer is high needed.Based on the classical theory of heat ...
ZHAO Lihua, LIU Danhua, ZHANG Zongxi, LIU Rui, JIANG Wei, WANG Zhong   +5 more
doaj  

Comparative Analysis of Distribution Transformers with Varying Ratings and Insulation States via Frequency Domain Spectroscopy and Capacitance Ratio

Applied Sciences
This paper presents a comparative analysis of distribution transformers with varying power ratings and insulation conditions using Frequency Domain Spectroscopy (FDS).
Miroslav Gutten, Daniel Korenciak, Roman Konarik, Jan Kanuch   +3 more
doaj   +1 more source

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

Advanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng, Peng Zhang, Gang Qiu, Ting‐Hsun Yang, Chang Niu, Yaochen Li, Wenqiang Cui, Yang Feng, Peide D. Ye, Ke He, Kai Chang, Kang L. Wang   +11 more
wiley   +1 more source

High Voltage Power Transformer Paper Insulation Assessment Techniques [PDF]

, 2013
Energized parts within power transformer are isolated using paper insulation and are immersed in insulating oil. Hence, transformer oil and paper insulation are essential sources to detect incipient and fast developing power transformer faults.
Abu Bakar, Norazhar, Abu Siada, Ahmed
core   +1 more source

Examining the Ageing of Transformer Insulation Using FRA and FDS Techniques

, 2015
Frequency response analysis (FRA) is a widely accepted testing technique to assess the mechanical condition of a power transformer. However, it has been reported that FRA is also sensitive to non-mechanical parameters such as the temperature and moisture
Ekanayake, Chandima, Yousof, M.F.M., Saha, Tapan   +2 more
core   +1 more source

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

Advanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam, William S. Rogers, Chen‐Yu Hu, Ming‐Yuan Song, Xinyu Bao, Shehrin Sayed, Jean Anne C. Incorvia   +6 more
wiley   +1 more source

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

, 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

Alternative liquid dielectrics for high voltage transformer insulation systems : performance analysis and applications

, 2021
Liquid-filled transformers are one of the most important and expensive components involved in the transmission and distribution of power to industrial and domestic loads. Although petroleum-based insulating oils have been used in transformers for decades,

core