Results 21 to 30 of about 799 (256)
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2004 The paper proposes a thermal model of a power oil-immersed transformer as a system of four homogeneous bodies: winding, oil, core and cooling medium. On the basis of experimental data it is shown that such model describes more precisely actual thermal ...
Yu. A. Rounov +3 more
doaj +1 more source
Comparison between Oil Immersed and SF6 Gas Power Transformers Ratings
TELKOMNIKA Indonesian Journal of Electrical Engineering, 2012 Power transformers present the largest portion of the capital investment in addition the power transformer remains oil immersed which presents a fire hazard that is particularly objectionable in urban and metropolitan environment. After careful studies of various alternatives to conventional transformer technology to produce a gas insulated power ...
Osama Elsayed Gouda +2 more
openaire +2 more sources
Influence analysis of local heat source on internal temperature distribution of power transformer
Journal of Measurement Science and Instrumentation, 2021 Oil immersed power transformer is the main electrical equipment in power system. Its operation reliability has an important impact on the safe operation of power system.
BAO Yanyan +5 more
doaj
IEEE Access, 2021 This paper presents a health analysis technique for transformer winding insulation through thermal monitoring and Fast Fourier Transform (FFT) power spectrum.
Muhammad Aslam +6 more
doaj +1 more source
Frontiers in Energy Research, 2023 Dissolved gas analysis (DGA) is a common technology used in the on-site maintenance of oil-immersed power transformers in the power industry at present.
Xiu Zhou +8 more
doaj +1 more source
Investigation on gas generation characteristics in transformer oil under vibration
IET Generation, Transmission & Distribution, 2022 Operating experience has shown that characteristic gases can be found in oil‐immersed power transformers and high‐voltage reactors under strong vibration without discharge or thermal faults occurring.
Chong Guo +5 more
doaj +1 more source
Oil Pressure Monitoring for Sealing Failure Detection and Diagnosis of Power Transformer Bushing
Energies, 2021 Power transformer bushings withstand great electrical and mechanical stress during high voltage and high current working conditions. Sealing failure poses a great threat to the long-term and reliable operation of the bushing and power transformer ...
Jiansheng Li +5 more
doaj +1 more source
Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae
FEBS Open Bio, EarlyView.Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj +3 more
wiley +1 more source
Vibration characteristics and vibration isolation design of oil-immersed power transformer
IOP Conference Series: Earth and Environmental Science, 2021 Abstract Transformer vibration and noise has become a prominent problem in power grid construction and operation. Firstly, on the basis of expounding the vibration mechanism of iron core and winding, the transmission path of vibration and noise of transformer is analyzed.
Zhijie Qian +6 more
openaire +1 more source
Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies
FEBS Open Bio, EarlyView.We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli +8 more
wiley +1 more source