Results 31 to 40 of about 345,231 (310)

Experimental studies of influence of DC and AC electric fields on bridging in contaminated transformer oil

, 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., Golosnoy, I.O., Chen, G., Wilson, G., Jarman, P.   +4 more
core   +1 more source

Modelling Magnetisation and Transport AC Loss of HTS Tapes near Ferromagnetic Materials Using an Integral Equation Method

Applied Sciences
The integral equation formulation of Maxwell’s equations proposed by Brandt provides an alternative to the H and T-A formulations for modelling high-temperature superconducting (HTS) tapes.
Calvin C. T. Chow, K. T. Chau, Francesco Grilli   +2 more
doaj   +1 more source

An Adipokinetic Hormone Acts as a Volume Regulator in the Intertidal Gastropod Mollusk, Aplysia californica

Frontiers in Endocrinology, 2018
Adipokinetic hormone (AKH) is a multifunctional neuropeptide in the gonadotropin-releasing hormone superfamily. In insects, AKH acts to mobilize energy stores during times of high energetic demand, but has been shown to have other effects.
Anthony W. Martillotti, Pei-San Tsai
doaj   +1 more source

Rotor eddy current power loss in permanent magnet synchronous generators feeding uncontrolled rectifier loads

, 2014
Analytical methods and transient finite element analysis (FEA) with rotating mesh are used to calculate rotor eddy current power loss in a permanent magnet synchronous generator (PMSG) connected to an uncontrolled bridge rectifier.
Sharkh, S.M., Qazalbash, A., Abusara, M.A., Irenji, N.T., Wills, R.G.A.   +4 more
core   +1 more source

Description of the AC Loss Model for the ITER Central Solenoid During a Plasma Scenario [PDF]

, 2022
AC loss is a major heat load in the pulsed, superconducting ITER coils, and thus a design driver for the cryo-system and superconductor. Given the importance of AC loss, extensive AC loss characterization of the components of the ITER coils, from the ...
Torre, A, Gauthier, F, Breschi, M, Cavallucci, L, Duchateau, JL, Bauer, P, Turck, B   +6 more
core   +1 more source

Analysis of AC winding loss of permanent magnet synchronous traction motor with high power

机车电传动, 2022
In a multiple-pole and high-power PMSTM with high fundamental frequency, the harmonic frequency of the internal magnetic field increases accordingly. The harmonic magnetic field will induce eddy current in the winding, resulting in high-frequency eddy ...
LI Xiangcheng, WANG Yingchun, NI Wei, WU Nan   +3 more
doaj  

Role of Flux Diverters in Reducing AC Loss in a Single-Phase 6.5 MVA HTS Traction Transformer for Chinese High-Speed Train Carrying High-Order Harmonic Currents

IEEE Access, 2022
The traction transformer is a critical electrical component in high-speed-trains. We are currently building a 6.5 MVA superconducting traction transformer which will increase transformer efficiency to 99%, halve the weight, and avoid the fire risk
Wenjuan Song, Zhenan Jiang, Mohammad Yazdani-Asrami, Mike Staines, Rodney A. Badcock, Jin Fang   +5 more
doaj   +1 more source

AC loss in a high-temperature superconducting coil [PDF]

, 1998
In a typical superconducting coil made of BSCCO/Ag tape, both amplitude and direction of the magnetic field determine the critical current, resistive voltage and AC loss. The distribution of the magnetic field along and across the superconducting tape in
ten Kate, H.H.J.; id_orcid, ten Haken, B., Godeke, A., ten Kate, H.H.J., Chevtchenko, O.A., Rabbers, J.J.   +5 more
core   +1 more source

Evaluation Method and Influence Law of UV-Cured Polyurethane on the Self-Healing Performance of Asphalt and Asphalt Mixtures

Buildings, 2023
To explore the effect of UV-curable polyurethane (UV-PU) on the self-healing performance (SHP) of asphalt and asphalt mixtures, this article conducted research in this area of the evaluation method and influenced the law.
Huaizhang Sun, Wenyi Liu, Yu Wang, Xinyue Chang, Hu Zhao, Shengkang Shi, Jianbao Xing, Di Wu, Jizhe Zhang, Wengang Zhang   +9 more
doaj   +1 more source

Effect of the magnetic material on AC losses in HTS conductors in AC magnetic field carrying AC transport current

AIP Advances, 2015
This paper presents an investigation on the AC losses in several typical superconducting composite conductors using the H-formulation model. A single superconducting strip with ferromagnetic substrate or cores and a stack of coated conductors with ...
Xing-Xing Wan, Chen-Guang Huang, Hua-Dong Yong, You-He Zhou   +3 more
doaj   +1 more source