Zobrazeno 1 - 10
of 7 846
pro vyhledávání: '"Transformer oil"'
Publikováno v:
IET Electric Power Applications, Vol 18, Iss 9, Pp 1044-1055 (2024)
Abstract Cellulose particles present a significant concern within the oil‐paper insulation of transformers, posing potential risks to insulation performance. Under the influence of the electric field, the movement of cellulose particles can comprom
Externí odkaz:
https://doaj.org/article/95cff42f541a4df9babf672de9c75c3b
Autor:
Arnaud Nanfak, Abdelmoumene Hechifa, Samuel Eke, Abdelaziz Lakehal, Charles Hubert Kom, Sherif S. M. Ghoneim
Publikováno v:
IET Nanodielectrics, Vol 7, Iss 3, Pp 175-187 (2024)
Abstract This contribution presents a two‐step hybrid diagnostic approach, combining k‐means clustering for subset formation, followed by subset analysis conducted by human experts. As the feature input vector has a significant influence on the p
Externí odkaz:
https://doaj.org/article/e017afe463634f4394e6f898d972e07f
Autor:
Arnaud Nanfak, Eke Samuel, Issouf Fofana, Fethi Meghnefi, Martial Gildas Ngaleu, Charles Hubert Kom
Publikováno v:
IET Nanodielectrics, Vol 7, Iss 3, Pp 97-130 (2024)
Abstract A key factor in ensuring the efficient and safe operation of power transformers is the early and accurate diagnosis of incipient faults. Among the tools available to achieve this goal, dissolved gas analysis (DGA) is widely used by power tra
Externí odkaz:
https://doaj.org/article/57d2079b3d8a4723bd7b45cb69fff8c6
Publikováno v:
IET Science, Measurement & Technology, Vol 18, Iss 7, Pp 349-360 (2024)
Abstract In order to solve the problem of remote oil level measurement for unmanned transformers, this paper proposes an online monitoring technology for transformer oil level based on ultrasonic sensors. Subsequently, a finite element model and expe
Externí odkaz:
https://doaj.org/article/1149d7860e8f44d5ad6dbe8aef752803
Improvement of the flashover threshold of TUK pressboard by using FeO3‐based nanofluid of monoesters
Autor:
Jean Lambert Jiosseu, Ghislain Mengata Mengounou, Emeric Tchamdjio Nkouetcha, Adolphe Moukengue Imano
Publikováno v:
IET Nanodielectrics, Vol 7, Iss 2, Pp 78-87 (2024)
Abstract This article deals with the improvement of the dielectric properties of TUK cellulose paper by impregnation. The experiment was carried out using a nanofluid based on vegetable oil esters and iron nanoparticles (FeO3). The insulating liquids
Externí odkaz:
https://doaj.org/article/b1a4d596777c4d0d9a975866cb60d2ba
Publikováno v:
Case Studies in Thermal Engineering, Vol 62, Iss , Pp 105119- (2024)
This work aims to study heat transfer analysis in a squeezing flow problem of nanofluid. The flow between pistons and nozzles in an automobile engine is one industrial application where the knowledge of the squeezing flow plays a crucial role. The ap
Externí odkaz:
https://doaj.org/article/9bddfbb9e2d74bd1a927d51e020e1670
Publikováno v:
Case Studies in Thermal Engineering, Vol 61, Iss , Pp 104913- (2024)
Oil-immersed transformers are widely used in power systems. When an arc fault occurs inside a transformer, the surrounding oil is rapidly pyrolyzed. These high-temperature, flammable gases are compressed into a high-pressure bubble, which is likely t
Externí odkaz:
https://doaj.org/article/705c16c4c71742938740175de8f2e7b5
Autor:
A. Prabu
Publikováno v:
Sustainable Energy Research, Vol 11, Iss 1, Pp 1-10 (2024)
Abstract This study investigated the use of nano-blended biodiesel, made by mixing waste transformer biodiesel with nanoscale aluminum oxide particles. A fuel blend ratio containing both diesel and biodiesel components was created with 100 parts per
Externí odkaz:
https://doaj.org/article/e71f8300752845aaafc11db02248450e
Publikováno v:
Alexandria Engineering Journal, Vol 92, Iss , Pp 82-91 (2024)
To detect the oil leakage problem of the power transformer in time and guarantee the normal operation of the power system, this paper proposes a lightweight-attention YOLOv8s, called LA_YOLOv8s, for oil leakage detection in the power transformer. Fir
Externí odkaz:
https://doaj.org/article/394211ac20c54850a654ebeed47ba8e5
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