Results 41 to 50 of about 1,478,429 (232)
On the Estimation of Elapsed Life of Oil-Immersed Power Transformers [PDF]
IEEE Transactions on Power Delivery, 2005 Inadvertent failure of power transformers has serious consequences on the system reliability, economics, and the revenue accrual. An accurate estimation of transformer life can, to a very large extent, mitigate the problems, besides satisfying the conflicting requirements of optimum utilization of the equipment and safeguarding the reliability. In this
Pradhan, Manoj Kumar, Ramu, TS
openaire +2 more sources
Gong-kuang zidonghua, 2017 Different faults of oil-immersed power transformers were classified with three-layer structure of 'parts-fault causes-temperature rising phenomeno' and the fault causes were summarized, impacts of the different faults on outer surface temperature of ...
DENG Shijian +5 more
doaj +1 more source
Inversion detection method of oil‐immersed transformer abnormal heating state
IET Electric Power Applications, 2023 Transformer overheating faults have an important impact on the transformer safe and stable operation. Taking 10 kV oil‐immersed transformer as the research object, using the indirect coupling analysis method of electromagnetic thermal fluid multi ...
Yongqing Deng +4 more
doaj +1 more source
An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane
FEBS Letters, EarlyView.Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa +3 more
wiley +1 more source
Bridging in contaminated transformer oil under DC and AC electric field
, 2013 One of the key components in high voltage transmission and distribution systems are power transformers and their consistent operation is of utmost importance to energy utilities and users.
Wilson, G +9 more
core +1 more source
Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics
FEBS Letters, EarlyView.Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt +8 more
wiley +1 more source
Molecular Oncology, EarlyView.We show that emergence of castration‐resistant prostate (CRPC) is associated with significant upregulation of cyclins that positively regulate cyclin‐dependent kinase 2 (CDK2) and concomitant downregulation of CDK4 cyclins. This renders CRPC cells dependent on the high activity of CDK2, and CDK2 inhibitors synergistically sensitize CRPC cells to both ...
Joyeeta Chatterjee +3 more
wiley +1 more source
Lifespan Estimation of Oil-Immersed Electric Transformer
KAGAKU KOGAKU RONBUNSHU, 2004 油入変圧器の寿命を支配しているのは主として絶縁材料である. なかでも絶縁紙の経年使用に伴う機械的強度の低下は絶縁不良の原因となる. 絶縁紙の劣化機構は巻線の発熱によって高分子であるセルロースの解重合が起こり, 平均重合度が減少して機械的強度が低下し, 巻線の温度変化に伴う変形に追随できなくなると説明されている.本研究では, セルロースの平均重合度の低下機構を重合反応工学の観点から, モノマー間結合の開裂反応と捉え, 変圧器に生ずる損失熱による温度上昇の影響を考慮して, 寿命予測について考察を行い, 変圧器の設備保全の考え方を示した.
ENDO, Toru +2 more
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, 2015 Analysis of real operating condition revealed that HVDC transformers experience combined effect of DC biased AC electric field. The dynamics of pressboard particle in contaminated transformer oil under the influence of DC, AC and DC biased AC electric ...
Mahmud, S. +4 more
core +1 more source
Molecular Oncology, EarlyView.The kinase SRPK1 directly interacts with the protein TOPBP1 and regulates the pre‐mRNA splicing of WIZ thereby contributing to the activation of the ATR/CHK1 replicative checkpoint in response to replicative stress. This allows cancer cells' genomic stability and survival.
Amani Shreim +17 more
wiley +1 more source