Results 251 to 260 of about 125,272 (308)

Dynamic braking with traction motors

Electrical Engineering, 1945
Retardation with traction motors, either independently or as an adjunct to mechanical braking, has been utilized in various forms on practically all types of electric vehicles from battery trucks to main-line locomotives. In some cases, it is used only to maintain uniform speeds on long grades and in others to make regular service stops.
L. G. Riley, G. M. Woods
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Motorized Robotic Closed Cervical Traction

Spine, 2023
Study Design. Biomechanical study Objective. To demonstrate that robotic cervical traction can apply closed cervical traction as effectively as manual weight-and-pulley traction in extension spring and cadaveric models. Summary of Background Data.
Brandon A. Sherrod, Trevor Schwehr, Daniel Waldram, Andrew Adams, Sterling Averett, Jeewon Ha, Simon Kahle, Derek Mitchell, Seth Polevoi, Andrew T. Dailey, Andrew S. Merryweather, Marcus D. Mazur   +11 more
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Multilevel invertors of traction motors

Russian Electrical Engineering, 2011
The peculiarities of using multilevel (three-level) voltage inverters for traction purposes are studied. It is shown that a three-level inverter allows one to achieve economical voltage control in traction motors which reduces losses in both devices and a traction drive in general.
Yu. M. In’kov, V. V. Litovchenko, A. V. Nevinskii   +2 more
openaire   +1 more source

DC & AC traction motors

IET Professional Development Course on Electric Traction Systems, 2008
Traction motors provide the motive force for the majority of railway vehicles. This paper looks at the fundamentals of the design and construction of the main DC and AC traction motor types that will usually be encountered in the UK and discusses some of the details that need to be considered.
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Applicability of Tractional Electric Motors

Russian Engineering Research, 2018
The practicality of three armature designs for tractional electric motors (power 560–755 kW, tractional force 5326 kgf) is analyzed. The use of an armature shaft of variable (reinforced) cross section in place of the armature with a sleeve is proposed, and suggestions are made regarding the assembly of the bearings.
G. A. Pautov, V. A. Grechishnikov, O. I. Yurasova, S. Yu. Yurasov, E. M. Medvedeva   +4 more
openaire   +1 more source

Modern traction motors and gearing

Journal of the Institution of Electrical Engineers, 1950
The paper gives various details of railway traction motors, indicating modern trends of design, especially as regards insulation, ventilation, stability, and the use of roller bearings for both armature and suspension. Gears for traction motors are also described, and modern practice indicated.
G.H. Fletcher, E.A. Binney
openaire   +1 more source

Modern Double-Reduction Traction Motor

Transactions of the American Institute of Electrical Engineers, 1946
Incorporated in the modern double-reduction motor and gear unit are many new design features which have made it an outstanding motor for the past five years. Oil lubrication is provided for all gearing and bearings in the oil-tight double-reduction gear unit.
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Synchronous motors for traction applications

2017 International Conference of Electrical and Electronic Technologies for Automotive, 2017
Nowadays, the electrical traction system is gaining more and more attentions since it is regarded as the most promising solution to ease energy crisis, air pollution and global warming. As one of the key devices, the electrical motors determine the main performance of the transport system.
Wang, Yawei, Bianchi, Nicola, Bolognani, Silverio, Alberti, Luigi   +3 more
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Electric Motors for Light Traction

EPE Journal, 2004
Modern electric motors for road electric vehicles (automobiles, scooters, bicycles), light rail transit (street cars, trolley lines, subway trains), guided transit systems and elevators have been discussed. The paper aims at various types of rotary brushless motors, direct electromechanical drives and practical solutions to light traction systems ...
BIANCHI, NICOLA, J. F. GIERAS
openaire   +2 more sources

Advantages of high-speed traction motors

Electrical Engineering, 1943
THE present use of high-speed light-weight propulsion motors on various types of traction vehicles is the result of an engineering evolution. An important phase of this development began approximately fifteen years ago, but the greatest progress has been during the past seven years.
openaire   +1 more source