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    Diploma in Electrical & Electronics Engineering

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    razahraz
    This document outlines a course on DC Machines and Traction Motors that is part of a Diploma in Electrical and Electronics Engineering program. The 3-credit, 3-hour per week course covers the construction, operation, and performance of DC generators and motors, as well as electric traction systems. It has 4 course outcomes focusing on identifying DC machine components, characteristics, applications based on performance, and speed control methods. The course content is divided into 4 modules mapping to the outcomes and covering topics such as generator and motor principles, characteristics, testing procedures, and speed control techniques. References and online resources are also provided.

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    Diploma in Electrical & Electronics Engineering

    Uploaded by

    razahraz
    22 views5 pages
    This document outlines a course on DC Machines and Traction Motors that is part of a Diploma in Electrical and Electronics Engineering program. The 3-credit, 3-hour per week course covers the construction, operation, and performance of DC generators and motors, as well as electric traction systems. It has 4 course outcomes focusing on identifying DC machine components, characteristics, applications based on performance, and speed control methods. The course content is divided into 4 modules mapping to the outcomes and covering topics such as generator and motor principles, characteristics, testing procedures, and speed control techniques. References and online resources are also provided.

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    Original Title

    3032 (3)

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    This document outlines a course on DC Machines and Traction Motors that is part of a Diploma in Electrical and Electronics Engineering program. The 3-credit, 3-hour per week course covers the construction, operation, and performance of DC generators and motors, as well as electric traction systems. It has 4 course outcomes focusing on identifying DC machine components, characteristics, applications based on performance, and speed control methods. The course content is divided into 4 modules mapping to the outcomes and covering topics such as generator and motor principles, characteristics, testing procedures, and speed control techniques. References and online resources are also provided.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    22 views5 pages

    Diploma in Electrical & Electronics Engineering

    Uploaded by

    razahraz
    This document outlines a course on DC Machines and Traction Motors that is part of a Diploma in Electrical and Electronics Engineering program. The 3-credit, 3-hour per week course covers the construction, operation, and performance of DC generators and motors, as well as electric traction systems. It has 4 course outcomes focusing on identifying DC machine components, characteristics, applications based on performance, and speed control methods. The course content is divided into 4 modules mapping to the outcomes and covering topics such as generator and motor principles, characteristics, testing procedures, and speed control techniques. References and online resources are also provided.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 5

    Program: Diploma in Electrical & Electronics Engineering

    Course Title: DC Machines & Traction


    Course Code: 3032
    Motors

    Semester : 3 Credits: 3

    Course Category: Program Core

    Periods per week: 3 (L:2 T:1 P:0) Periods per semester: 45

    Course Objectives:

    ● To familiarize with the construction and operation of DC machines.


    ● To recognize the classification and applications of DC machines.
    ● To analyze the performance of DC generators and DC motors.
    ● To provide a basic knowledge of electric traction systems.

    Course Prerequisites:

    Course
    Topic Course Name Semester
    Code
    Elementary Concepts of
    Magnetism and Electromagnetism 2
    Electrical Systems

    Course Outcomes:

    On completion of the course, the students will be able to:-

    Duration
    COn Description Cognitive Level
    (Hours)
    Identify the construction and operation of dc
    CO1 10 Applying
    generator
    Identify the electrical characteristics and uses of dc
    CO2 10 Applying
    generators
    Select dc motor for specific applications based on
    CO3 12 Applying
    performance characteristics
    Choose various methods of speed control of dc
    CO4 11 Applying
    motors and traction motors.

    Series Test 2
    CO - PO Mapping

    Course
    PO1 PO2 PO3 PO4 PO5 PO6 PO7
    Outcomes
    CO1 3

    CO2 3

    CO3 3

    CO4 3

    3-Strongly mapped, 2-Moderately mapped, 1-Weakly mapped

    Course Outline

    Module Duration Cognitive


    Description
    Outcome (Hours) Level

    CO1 Identify the construction and operation of dc generator.

    M1.01 Illustrate the constructional details of DC Machines. 3 Understanding


    M1.02 Explain the principle of operation of a DC generator. 2 Understanding
    Derive EMF equation of DC generator and solve
    M1.03 3 Applying
    problems

    M1.04 Compare the armature windings of a DC machine. 2 Understanding

    Contents:
    Dc machines-constructional details -Dc generator - working principle - simple loop
    generator - dc generator classification -- voltage equation - emf equation – problems –
    losses -power stages- efficiency-condition for maximum efficiency(derivation needed )-
    problems - armature winding - lap and wave windings(basic concepts, comparison and uses
    -only )

    CO2 Identify the electrical characteristics and uses of dc generators.

    Illustrate armature reaction and its effects in DC


    M2.01 2 Understanding
    generators
    Explain commutation process in DC generator
    M2.02 Understanding
    and methods for improving commutation 2
    Illustrate the characteristics of various types of
    M2.03 3 Applying
    DC generators and solve problems
    Outline parallel operation and uses of various
    M2.04 3 Understanding
    DC generators.
    Series Test - 1 1

    Contents:
    Armature reaction –effects - compensating winding- commutation - interpoles- equalizer
    connections. characteristics of dc generators – separately excited(characteristics curves
    only ) - self excited generators-open circuit characteristics - critical resistance - critical
    speed - problems -internal characteristics-voltage build up of a shunt generator -
    conditions- external characteristics – concept of parallel operation of dc generators –uses
    of dc generators.

    Select dc motor for specific applications based on performance


    CO3
    characteristics

    Explain the working principle of DC motor and


    M3.01 4 Applying
    solve various motor parameters
    Illustrate the performance characteristics of dc
    M3.02 4 Applying
    motors and select motors for specific applications.

    M3.03 Illustrate the working of various types of starters. 2 Understanding

    M3.04 Outline the procedures for testing of DC motors 2 Understanding

    Contents:
    DC motor – working principle - significance of back emf-dc motor classifications - voltage
    equation -condition for maximum power ( derivation required )- problems –torque in dc
    motor-general torque equation ( derivation needed )-armature torque and shaft torque (
    definitions and equations only ) – problems.

    Characteristics of dc motors – electrical characteristics- mechanical characteristics –


    performance characteristics-losses- power stages- efficiency- condition for maximum
    efficiency- problems.– applications of dc motors.

    Starting of dc motors - necessity of starter- types of starters -schematic diagram and


    working -three point starter-four point starter.

    Testing of dc motor - load test on dc motors – Swinburne’s test


    Choose various methods for speed control of dc motors and traction
    CO4
    motors.
    Identify different types of speed control of dc
    M4.01 3 Applying
    motors.
    Summarize the use of DC series motors in electric
    M4.02 2 Understanding
    traction
    M4.03 Illustrate Speed control of traction motors 3 Understanding

    M 4.04 Explain braking of traction motors 3 Understanding

    Series Test – II 1

    Contents:
    Speed control of dc motor -factors affecting speed – speed control methods - list various
    methods- flux control and armature control ( shunt and series motors only )- voltage
    control method - basic concept and diagram only - problems

    DC electric traction motor - general features -speed control method - series-parallel


    control - shunt transition -bridge transition - electrical braking in traction - diagram with
    basic concept- rheostatic braking - regenerative braking

    Text /Reference:

    T/R Book Title/Author

    T1 Electrical Technology-BL Theraja, A K Theraja. Vol- II: S Chand & co.

    T2 Electrical Technology-BL Theraja, A K Theraja. Vol- III: S Chand & co.


    R1 Bimbra P. S., Electrical Machinery, Khanna Publishers.
    R2 Utilization of Electric Power: Including electric drives and electric traction - N V
    Suryanarayana: New age international publishers
    R3 Dc Machines and Transformers -K Murugesh Kumar: S Chand & company
    R4 Theory and performance of Electrical Machines- JB Gupta.: S. K. Kataria & Sons
    R5 Deshpande M. V., Electrical Machines, Prentice Hall India, New Delhi, 2011
    R6 Electrical Machines, Nagrath I. J. & Kothari D. P, Tata McGraw-Hill Education
    R7 B.R. Gupta,’ Fundamental of Electric Machines’ New age International
    Publishers,3rd Edition

    Online Resources

    Sl.No Website Link


    1 NPTEL courses: https://nptel.ac.in/courses/108/102/108102146
    2 https://nptel.ac.in/courses/108/105/108105155
    3 https://nptel.ac.in/courses/108/106/108106071
    4 https://nptel.ac.in/courses/108/105/108105053
    5 www.swayam.gov.in
    6 Virtual labs : http://vlabs.iitb.ac.in/vlab/labsee.html
    7 http://em-coep.vlabs.ac.in
    8 http://vem-iitg.vlabs.ac.in
    9 NPTEL channel:www.youtube.com/channel/UC640y4UvDAlya_WOj5U4pfA
    10 www.javatpoint.com/electrical-machines-tutorial

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