Results 211 to 220 of about 3,355 (263)
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Modern traction motors and gearing
Proceedings of the IEE - Part IA Electric Railway Traction, 1950The 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
exaly +2 more sources
Electric Motors for Light Traction
EPE Journal (European Power Electronics and Drives Journal), 2004Modern 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 ...
Nicola Bianchi
exaly +3 more sources
The overhaul and maintenance of direct-current traction motors
Proceedings of the IEE Part A Power Engineering, 1955The paper is a review of the maintenance practices mainly developed by London Transport for 600-volt direct-current railway traction motors. The paper describes the procedures adopted to improve reliability and the methods used to carry out heavy repairs after failures have occurred.
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The Application of Traction Motors
Transactions of the American Institute of Electrical Engineers, 1940The application of traction motors is based fundamentally on speed-time curve calculations. This method has been used for many years and is familiar to electrical engineers engaged primarily in transportation activities. Many other engineers infrequently encounter problems of traction-motor application but are not conversant with the effect which ...
F. E. Wynne, G. M. Woods
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Dynamic braking with traction motors
Electrical Engineering, 1945Retardation 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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Multilevel invertors of traction motors
Russian Electrical Engineering, 2011The 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 +2 more
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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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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.
openaire +1 more source
Applicability of Tractional Electric Motors
Russian Engineering Research, 2018The 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 +4 more
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Advantages of high-speed traction motors
Electrical Engineering, 1943THE 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.
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