Air compressor rotary screw type 200 cfm tractive power will work with you during the design and build phases of your tp56 industrial locomotive. A traction motor is used to make rotation torque on a machine. Our drives and traction motors operate all over the world. It covers basic standard equipaent as well as the most commonly used extras. In deep and trustful partnerships with vehicle builders, refurbishers, and rail operators, we supply stateoftheart traction. Diesel the premier provider of locomotive technology for 90 years. The company is owned by caterpillar through its subsidiary progress rail electromotive diesel traces its roots to the electromotive engineering corporation, a designer and marketer of gasoline. The bell valve operates the locomotive signal bell. Rheostatic braking cant be used in case of traction motor isolation and failure of any one of the rectifier.
Dalian, china drive systems for locomotives, dc train drive systems, auxiliary power supply, traction motor, train information system, etc. Traction motors components and systems siemens mobility. The throttle electrically controls speed and power by actuating a governor mounted on the engine. The motor drives through double reduction gearing and is carried in the housing which incloses this gearing. The transition indicator is an axnmeter connected in the armature circuit of the no. We match our traction motors and drives perfectly to one another and to the projectspecific requirements. Method and apparatus for improving the delivery of oil of a wick lubricating system for a locomotive traction motor support bearing us200707940a1 en 20051121. Traction motor for locomotives crrc zhuzhou electric co. A locomotive is provided with rheostatic braking, besides vacuum and loco air brakes.
Us3940189a traction motor bearing lubrication assembly. Two multiple disc clutches are installed between traction motor and gear to allow movements between these two components. An endeavor is made to show both the original type of equipment and its present modification. Jun 09, 2020 traction motors d77 or d78 3 units fuel capacity 300 gallons and up. As of 2008, emd employed approximately 3,260 people, and in 2010 it held approximately 30 percent of the market for dieselelectric locomotives in north america. Total solutions for quality locomotive electrical rotating. At low speeds, on the heavy pull, heavy amperage at a comparatively low voltage is needed while at higher speeds, the voltage is high and the am perage lower.
Pdf theoretical and practical perspectives of diesel. The trains speed pattern determines many design aspects for traction motors used in locomotives. Traction inverter tcc1 and traction inverter tcc2 invert the dc link voltage into variable voltage, variable frequency,3 phase ac power for the induction traction motors. Rpiis a leader in providing remanufacturing services to the railroad industry for electric transmission components used for both freight and passenger locomotives. If the test were redone at a slightly different motor speed the motor would pass. Drive systems for locomotives, dc train drive systems, auxiliary power supply, traction motor, train information system, etc. At locomotive start the throttle controls electrical devices that provide rapid power response at a level consistent with smoothly controlled starting. These motors are located in two trucks which support the locomotive weight and distribute it to the driving wheels. The motors deliver power to four axles individually, through single reduction spur gearing with a ratio of.
In a series circuit, current passes through each device in completing its path to the. The traction motor is a four pole dc series motor in which field winding is connected in series with armature. To look at it another way, transition is a method of adjusting the traction motor back. Review of characteristics of different types of dc and ac motors used traction and their suitability moduleiv 10 hours rating and heating of electric drives, power loss, heating and cooling of motors, classes and duty and selection of motors, drives for specific application like steel, paper, textile mills. We are happy to offer a custom tailored solution for your switching needs. Traction systems for locomotives and high speed applications.
A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric or hydrogen vehicles, elevators or electric multiple unit traction motors are used in electrically powered rail vehicles electric multiple units and other electric vehicles including electric milk floats, elevators, roller coasters, conveyors, and trolleybuses, as well as vehicles with. It is a forced ventilated machine arranged for axle mounting on sleeve bearing. In deep and trustful partnerships with vehicle builders, refurbishers, and rail operators, we supply stateoftheart traction systems. Sustainable operation of electric railway systems represents a significant purpose nowadays in the development of high power and high speed locomotives and. Traction inverter locomotive and traction control the control system of the entire loco motive is based on microcomputer technology. Permanent magnet dc traction motor with reconfigurable. Transverse movement is limited by the flanges of axle suspension bearing.
Pdf calculation of the traction effort of switching. Each traction motor is directly geared to an axle and pair of driving wheels. Electric traction mcq with explanation objective type. It comprises a sibas 16 traction control unit for each inverter and a locomotive control unit. Traction motors are permanently connected in parallel combination. Wick holder for a lubricating system of a locomotive traction motor support bearing. The air brake equipment is combined straight and automatic, schedule 6sl.
Sensorised hybrid tmbu traction motor bearing unit equipped with ceramic balls, the incremental sensor detects absolute positioning for electric control devices, direction of rotation, speed for brake control systems and temperature to monitor reliability. This type of motor is mounted in 2200kw diesel shunting locomotive. The locomotives with asynchronous traction motors are considered to. Traction motors in all traction motors for electric locomotives and electric cars are used roller bearings, and they are usually cylindrical ones because of their highspeed and heavyload capabilities as well as easy assembly and disassembly. As we all know, it is electric locomoti ves that are at the forefr ont of railway traction, while the diesel locomotive is kept for some very specific uses. Pdf study on bogie and suspension system of an electric. There are two traction motor cooling blowers fitted in a locomotive. Abb is the expert for traction converters, motors, transformers, and complete traction chain solutions. They are also used in electric vehicles, such as electric milk.
As an external power source of the asynchronous traction motor of a locomotive, a modern generalpurpose frequency converter can be used. Electric locomotives, traction control equipment, auxiliary power supply equipment, traction motor, train information system, atcats system, etc. Esr 0601 overhaul of 48 class locomotive traction motors. In cold countries a service locomotive is required to run up and down the line in order to prevent the formation of a layer of ice on the conductor rails. Emd also operates a traction motor maintenance, rebuild and overhaul facility in san luis potosi, mexico. Delivery of electric equipment for towing electric locomotive of. This control unit processes the commands coming from the driver or trainlines to form the reference values for. Pdf the causes of slipping and sliding of the locomotive s driving wheelsets are analysed from theoretical and practical perspectives.
Dieselelectric locomotive sd90mac with threephase drive. Prototype core components of a traction motor were designed and built for installation in the casing of a general motors d77 traction motor from a gp38 locomotive to test and evaluate the technology capabilities. When fields are reversed, traction motors change their direction of rotation, with the result that the locomotive s direction of travel is changed. This legacy includes unsurpassed experience in traction motor design and manufacturing. One clutch is located directly between motor and hollow shaft, the second clutch is located between hollow shaft and pinion. J d1 traction motor for locomotive motor is axlehung suspensde, with rated working voltage ac975v, rated output power 300 kw, and maximum rotating speed 3145 rm. Locomotive traction motors vibration based condition assessment. Each motor is tailormade to customer requirements and to the operation conditions of each train that it powers. Generally, the average speed of a freight train is lower than. The use of squirrel cage motor for traction has revolutionised the motive power of a locomotive. The traction motor gearcase lubricant must conform to specification trs 39. Introduction this manual has been produced for use with all model f3 locomotives. The gear housing is axle mounted and spring supported from the truck frame. Pdf calculation of the traction effort of switching locomotive.
Our products are designed to meet the toughest applications, from. Traction motors locomotive service pneumatics electronics company listing back cover table of contents. Analysis of failed traction motor pinion gear page 1 of 19 analysis of failed locomotive train motor pinion gear 1. Locomotive equipment blower 1, air compressor removal and installation ds. Vibration tests conducted when motor speed coincided with the resonance would fail even a new motor. Traction motors traction motors for locomotive output. Diesel locomotives never reached the speeds of electric locomotives.
Traction motors traction motors and generators abb. Traction motor bearings are usually equipped with a one or twopiece machined brass cage. It helps, too to, record the train speed, either by means of a pickoff from the drivers spee dometer i thif s i s available o, r by monitoring traction motor voltage. Traction motor since the dieselelectric locomotive uses electric transmission, traction motors are provided on the axles to give the final drive. If the locomotive is equipped for performance control, either basically or on special order, electrical devices operating within traction motor capabilities control power at an optimum level. Series commutator motor, therefore it requires regular maintenance. The air equipment is straight air, with one engineers valve, general electric type sl1.
The core components of the prototype are approximately 14 of the weight and volume. This motor is installed in 160kmh diesel locomotive. The asynchronous motor is rugged, has high starting torque. A railroad locomotive includes traction motors for propelling the locomotive, and an isolation switch disposed in signal communication with at least one of the traction motors for isolating a faulting motor from the other traction motors. Gear cases must be initially filled with lubricant to the quantities specified in table 1. Traction motors in diesel locomotives ee publishers. Ac traction motor, dieselelectrical locomotive, dieselelectrical transmission. Us6497182b2 railroad locomotive traction motor isolation. D87btr traction motors 2630 mac70, 2830 mac 80, 3432 mac 70 ace and geb traction motors ac rotor pinion advancement ac stator rewinding rail products international, inc. The core components of the prototype are approximately 14 of the weight and volume of those of the original gm d77 motor. Esr 0246 traction motor gearcase lubrication levels. Review of characteristics of different types of dc and ac motors used traction and their suitability.
Massachusetts institute of technology 1 introduction this is a concept paper in response to the foa entitled rare earth alternatives in critical technologies. Moreover, the paper presents calculation of the traction. Locomotive traction motors vibration based condition. Thyristors in railway traction how can their effects be. However, it i nost essentia to rel cord speed automatically because the taperecordin a g should carry. The determination of the asynchronous traction motor. Skf traction motor bearing application from 1922 catalogue. Usually, cylindrical roller bearings are utilized due to their highspeed and heavyload capabilities, as well as their ease of assembly and disassembly. Traction motors are used in electrically powered rail vehicles such as electric multiple units and electric locomotives. Traction motors roller bearings are used in all traction motors for electric locomotives and electric cars. Thyristors in railway traction how can their effects be measured.
The sanding valve is a single acting valve which operates the sanders throughout the locomotive. These motors were traditionally dc but the development of modern power and control electronics has led to the introduction of 3phase ac motors. The use of a diesel engine frees the locomotive from being coupled to an external electricity supply, and the use of electric motors and drives allows control over the traction capabilities of the locomotive which would not be possible with a direct drive from the diesel engine. Electric vehicle and electric motor traction motor refers to a type of electric motor.
More than 90,000 motors are in use in a variety of rail vehicles, from trams to highspeed trains to powerful locomotives. The gear had failed in service by one of its teeth having broken off the gear body. Design and analysis of drive system with slip ring induction motor. Introduction currently, the update of the locomotive. Transition is the term applied to the changing of traction motor connections on a dieselelectric locomotive so that full power may be obtained from the main generator within the range of its current and voltage limits. Pdf operation analysis of ac traction motors in terms of. Traction motors include both modular and frameless traction motors. Emd rebuilt traction motors uniquely benefit from the latest oem upgrades and improvements f eaturing the quality and reliability necessary to maximize traction motor operating efficiency. Inverters are controlled by a primary computer known as the em2000 locomotive control computer lcc that monitors and controls many locomotive functions. Traction motor cooling blower and its motor is one of the important auxiliary machine. Progress rail locomotives, doing business as electromotive diesel emd is an american manufacturer of dieselelectric locomotives, locomotive products and diesel engines for the rail industry. The paper presents a traction induction motor with an innovative rotor winding design. By the simultaneously changing value of supply voltage u 1 and its frequency f 1 and depending on the selected law on adjusting the rotation speed of asynchronous traction motor, it is possible to obtain any type tractive eff ortspeed curves of the locomotive.
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