Results 71 to 80 of about 70,906 (304)
Trends in Measuring Instrument Transformers for Gas-Insulated Switchgears: A Review
EnergiesVoltage and current measurements in high-voltage substations are fundamental for stable operation. Conventional instrument transformers (ITs) face challenges in gas-insulated switchgears (GISs), such as size, weight, accuracy limitations, and behavioral ...
Dong-Eon Kim +3 more
doaj +1 more source
The analysis of the current shape in the circuit analogous to the a.c. welding circuit [PDF]
, 1967 The suitability for welding of manual metal arc welding transformers depends on the no-load voltage and on the electro-magnetic behaviour of the reactor. The latter is related to the curvature of the actual magnetization characteristic.
Kuszleyko, Richard
core
Can Distribution Grids Significantly Contribute to Transmission Grids' Voltage Management?
, 2016 Power generation in Germany is currently transitioning from a system based on large, central, thermal power plants to one that heavily relies on small, decentral, mostly renewable power generators.
Auer, Sabine +4 more
core +1 more source
Frequencies Dominations for Different Rating of Distribution Transformer under Transients [PDF]
, 2020 Power transients faults on high voltage lines are prominently due to high frequency transients. These transients affect the predicted life and efficiency of equipment.
Faisal, Haseeb +3 more
core
Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Probabilistic Analysis of the Reliability Performance for Power Transformers in Egypt
Renewable Energy and Sustainable Development, 2019 From reliability, maintainability, and availability (RAM) points of view, the performance of power transformers has a significant impacts on the performance of the entire power network.
Ahmed Adel EL-Bassiouny +2 more
doaj +1 more source
FEBS Letters, EarlyView.This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel +13 more
wiley +1 more source
Degradation Assessment of In-Service Transformer Oil Based on Electrical and Chemical Properties
Applied SciencesIn order to ensure the long-term reliability and safety of power transformers, it is important to continuously monitor the characteristics of insulating oil, which not only helps in understanding its behavior over time but also ensures the safety of the ...
Ehtasham Mustafa +4 more
doaj +1 more source