Results 21 to 30 of about 31,580 (309)

Increasing the energy efficiency of the multi-motor traction electric drive of an electric locomotive for railway quarry transport

open access: yesEngineering Science and Technology, an International Journal, 2023
The improvement of the energy efficiency of an electric locomotive for railway quarry transport with a multi-motor traction electric drive while disconnection of the traction electric motors has been investigated.
Ievgen Riabov   +3 more
doaj   +1 more source

Multi-Factor Analysis of External Effects Influencing the Operational Reliability of Asynchronous Electric Motors [PDF]

open access: yesE3S Web of Conferences, 2020
The paper considers the main issues of increasing the operational reliability of low-voltage asynchronous electric motors based on a set of studies performed using simulations in the Simulink Matlab software environment.
Romanova Victoria   +2 more
doaj   +1 more source

INVESTIGATING THE PROTECTION SYSTEM OF ELECTRIC MOTORS BASED ON ITS MAIN WORKING PARAMETERS [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2022
This research was devoted to the creation of a protection system for electric motors used in industry and transport, based on modern and traditional sensors.
Elshan MANAFOV   +2 more
doaj   +1 more source

AIRPLANES WITH AN ELECTRIC MOTOR

open access: yesAviation, 2012
With the decreasing supply of fossil fuel, we can see more and more attempts to substitute combustion engines with other sources of propulsion. This article deals with the possibility of using alternative sources of energy in aviation. Namely, it describes the possibilities of the advantages and disadvantages of using hydrogen fuel cells in aviation.
Jurecka, Radek, Bencalik, Karol
openaire   +3 more sources

TEFC Induction Motors Thermal Models: A parameter Sensitivity Analysis [PDF]

open access: yes, 2005
With the increasing pressures on electric motor manufacturers to develop smaller and more efficient electric motors, there is a trend to carry out more thermal analysis in parallel with the traditional electromagnetic design.
D. A. STATON   +3 more
core   +1 more source

High-Torque Electric Machines: State of the Art and Comparison

open access: yesMachines, 2022
The state of the art of high-torque electric motors has been reviewed in this paper. This paper presents a literature review of high-torque density electric machines based on their airgap classifications, which brings a unique consideration to new design
Maryam Alibeik, Euzeli C. dos Santos
doaj   +1 more source

Optimization of Cycling Behavior of Lithium Ion Cells at 60°C by Additives for Electrolytes Based on Lithium bis[1,2-oxalato(2-)-OO´] borate

open access: yesInternational Journal of Electrochemical Science, 2008
We investigated 13 additives well known from literature and studied their effect on the performance of lithiumion cells comprised of electrolytes based on lithium bis[1,2-oxalato(2-)-OO´] borate. The additives can be attributed to three classes including
H.-G. Schweiger   +3 more
doaj   +1 more source

Energy-efficient motors [PDF]

open access: yes, 2008
The use of a copper-squirrel cage in induction motors has been analyzed testing a prototype rated 1.1 kW and comparing the performances with a twin machine with an aluminum cage. The comparison has been made using torque, efficiency, starting torque, and
Boglietti, Aldo   +3 more
core   +1 more source

Review of Vibroacoustic Analysis Methods of Electric Vehicles Motors

open access: yesEnergies, 2023
The dynamic development of electromobility has resulted in new directions of research, one of which is the analysis of the noise of traction motors. The designs of the motors used in electric vehicles are relatively new and often modified.
Emil Król   +2 more
doaj   +1 more source

Pengaruh Model Pembelajaran dan Minat Belajar Terhadap Hasil Belajar Instalasi Motor Listrik

open access: yesJurnal Teknologi Pendidikan, 2016
The research aims to reveal the influence of learning model and learning interest on student’s installation of electric motors achievement. The research was conducted at SMK Dinamika Pembangunan Jakarta.
Suyitno M
doaj   +1 more source

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