Traction systems for locomotives and high speed applications. Massachusetts institute of technology 1 introduction this is a concept paper in response to the foa entitled rare earth alternatives in critical technologies for energy react. This system included the new development of a highspeed traction drive motor achieving a significant increase in power weight ratio. Electric motor converts electrical energy to mechanical power for motive power inverter converts high voltage direct current to varying pulses that control and power the electric motor charger modifies and controls electrical energy to reenergize the battery converters increases the battery voltage for the traction drive system and. Isbn 07389785 ss95211 no part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. The mitrac traction converter for bombardier spacium is in terms of reliability the most advanced mitrac product ever produced. Ieee std 1122004 revision of ieee std 1121996 ieee standard test procedure for polyphase induction motors and generators sponsor electric.
Nfta employees will place the motors on the contractors trucks. The units are electrically independent of each other except for certain low voltage wiring. With our traction motor testing services, you benefit from. Ac traction motors have replaced dc motors in many traction applications. Do not lift both the motor and driven equipment with the motor lifting means. From each power plant the power is distributed to the traction motors which are mounted on the trucks. T he maintenance procedures for the two different types of traction motors referred to in this section are the same. The electric motor applies resistance to the drivetrain causing the wheels to slow down. The motors used are induction or asynchronous motors designed to have characteristics suitable for traction. Ieee std 1122004, ieee standard test procedure for. Included in multiple ul recognized insulation systems. Locomotive traction motor overhaul this addendum no. This paper provides an overview of the hybrid system, discusses the characteristics required of a traction drive motor, and.
Abb engineering allows the modernisation of traction motors with changes to voltage, performance or speed, or when a new insulation system needs to withstand increased loads. Development of traction drive motors for the toyota hybrid. Usually, cylindrical roller bearings are utilized due to their highspeed and heavyload capabilities, as well as their ease of assembly and disassembly. In addition to conventional squirrel cage rotor testing methods such as the growler test, also covered will be techniques such as the use of a core loss tester, high current excitation, and spectrum analysis of vibration. In deep and trustful partnerships with vehicle builders, refurbishers, and rail operators, we supply stateoftheart traction. Abb motors and mechanical us recommended for you 12. The safety of these elevators is an ongoing concern of reclamation. Facilities must be available for decoupling the motor from the loading system in seconds. The output supplies each have separate controls, measuring and protection circuits for efficient use of the test set. Pdf the preliminary choice of electric traction motors.
Our successful experiences in certification and testing accumulated in over 140 years, from which we have gained recognition and appreciation from both domestic and foreign traction motor manufacturers. The noload test follows the load test immediately, with the motor at essentially the same temperature as at the end of the load test. All newly repairedoverhauled traction motors shall remain under warranty for a period of 24 months from the date of fitment or 36 months from date of supply. Ratings tests are needed to validate mfg claims of net power and maximum 30 minute power. Abb is the expert for traction converters, motors, transformers, and complete traction chain solutions. Visual inspection and electrical testing of the armature and fields give the maintenance personnel an understanding of the condition of the motor. In traction motors, the bearing size is determined exactly as in the case of the standard motor with the aid of the normal fatigue life calculation method. In return, the energy from the wheels turns the motor, which functions as a generator, converting energy normally wasted during coasting and braking into electricity, which is stored in a battery until needed by the electric motor. The contractor shall provide serviceproven overhauled direct current traction motors by using components that have functioned successful in revenue service since delivery. Traction motor test set high power motor test systems. Houghton internationals risasapproved rail division specialises in the repair, maintenance and life extension of electro mechanical assets into the uk and global markets, including ac and dc motor repairs offering a broad scope of repair and overhaul services for acdc traction motors, our cradle to grave oem manufacturing and life cycle management service provides the entire range of. Additionally all upgradedmodified components must be selected with the understanding.
The complete guide to electrical insulation testing. Quality assurance and final inspection on test site every traction motor undergoes a standard inspection before. Permanent magnet dc traction motor with reconfigurable. Electric tests for electric motor can busrest bus simulation. Nre can provide both new and rebuilt traction motors for your locomotive fleet. Traction motors in diesel locomotives ee publishers. The contractor will be expected to receive, overhaul and return up to four 4 traction motors every two 2 months.
Zytek have developed a high power, compact, electric drive package comprising. Overview of the doe advanced power electronics and. Each traction motor is test run before installation or shipping to insure they meet your needs. 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. Ensured safety and reliability of original products. The traction motors are geared to the axle through spur gears.
Multiple drive systems per vehicle can be supported due to the safety case and levels of torque integrity employed. The rating life of the bearings in a traction motor. The traction motor is suitable for a range of vehicle applications, from medium size passenger cars to light duty commercial vehicles. Traction motor test set the traction motor test set features separate internal sources for field and armature testing and an ac source for testing winding reactance impedance test.
It is designed for reliability requirements ten times higher than previous generations and fulfills low weight and compact design requirements. The preliminary choice of electric traction motors for a helicopter traction drive technical report pdf available march 2015 with 1,537 reads how we measure reads. The baker wintats traction armature test system is a reliable, fieldproven system for accurate, rapid testing of armatures in motor manufacturing and quality control operations. The core components of the prototype are approximately 14 of the weight and volume of those of the original gm d77 motor. Sae j2907 specifies procedures for tests to be done in a laboratory setting to foster a consistent and repeatable mechanism for the assessment of motor net power and maximum 30 minute power timeline need for standard. A test rig for the conditionbased maintenance application. See the attached pages of questions q received and metra responses r. Metra electric, kyd shop 12300 lndiana avenue chicago, il 60628 attention. The traction motor under test is controlled by its own traction converter connected to the dc bar by means of a precharge circuit.
Dc motor analysis pdma a leader in electric motor testing. Implementing a predictive maintenance program takes a. Reference project abb service for traction motors rail. Traction motor testing before fitting in locomotive.
The speed and torque of the motor are controlled by varying the frequency, voltage and current applied to. Maintenance, inspection, and testing of electric and. Our successful experiences in certification and testing accumulated in over 140 years, from which we have gained recognition and appreciation from both domestic and foreign traction motor. We are constantly doing what everyone else just talks about. The fullyautomated unit performs the required set of tests that motor manufacturing and rebuild shops need for. Toyota motor corporation developed in 2005 a new hybrid system for a large suv. That is, with the same test connections and with the same test voltage applied for the same length of time. 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. The test rig is powered by a static group converter that supplies the equipments with a dc bus bar at 1500 vdc with the max power of 300 kw. Some of the technical discussion is based on work that has been reported in a conference publication1. As is normal in the sector, this is indicated not in hours but in kilometres travelled.
Dropforged eyebolts per american society of testing materials a489 or equivalent must be used. The operational performance of traction motors directly affects the efficiency and dependability of services provided by rail transportation and mass transit industries. Mitrac tc 530 traction converters for underfloor mounting. Traction motors are the key components of complex propulsion systems that drive freight locomotives and passenger transit vehicles.
Traction motors roller bearings are used in all traction motors for electric locomotives and electric cars. We deliver end of line test benches for pilot and serial productions not only for individual electric motors but. Each traction motor is connected to its corresponding axle through single reduction gearing. Motor and generator capabilities wabtec corporation. Dc motor fault zone analysis is a vital part of any dc motor maintenance program.
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