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Electrical Technology ELECTRICAL TECHNOLOGY Subject Code: (EC303ES) Regulations : R16 JNTUH Class :II Year B.Tech ECE I Semester Department of Electronics and communication Engineering BHARAT INSTITUTE OF ENGINEERING AND TECHNOLOGY Ibrahimpatnam -501 510, Hyderabad ELECTRICAL TECHNOLOGY (EC303ES) COURSE PLANNER I. COURSE OVERVIEW: The subject Electrical Technology is one of the important course in the Engineering subject which deals with the principles of DC and AC Machines like generators, motors, transformers. Also some of the special types of machines like single phase motors, AC servomotors, and principles and types of electrical measuring instruments will be studied. II. PRE REQUISITES: This course provides the basic knowledge of dc machines, its applications. It starts with the fundamental principles of dc machines, then its construction, characteristics. Then it explains about the dc motor it requires basic concepts of faraday‘s law if electromagnetic induction and A.C machine principles. Electrical Technology course is one of the important courses of the Electrical and Electronics discipline. In this course the different types of DC generators and motors which are widely used in industry are covered and their performance aspects will be studied. III. COURSE OBJECTIVE: 1 Understand the basic principles of operation of rotating electric machines (Generators and Motors), their classification and basic efficiency and performance characteristics. 2 Understand the operation and basic configurations of separately excited, permanent magnet, shunt and series DC machines and speed control methods. 3 To know the basic principle of single phase transformers and its performance. 4 To understand the basic principle of three-phase induction motor and alternators 5 To understand the basic principle of special motors and electrical instruments. IV. COURSE OUTCOMES: At the end of the course the student will be in a position to – S. No Description Bloom’s taxonomy level Student will be able to analyze the performance of Knowledge, Understand 1 DC Generators and DC Motors. (Level 1, Level 2) Student will be able to analyze the performance of Knowledge, Understand 2 transformers (Level 1, Level 2) Student will be able to learn in-depth knowledge on Knowledge, Apply 3 three phase induction motor (Level 1, Level 3) Student will be able to analyze the performance of Apply, Evaluate 4 special motors and electrical instruments. (Level 3, Level 5) V. HOW PROGRAM OUTCOMES ARE ASSESSED Program Outcomes Level Proficiency assed by PO1 Engineering knowledge: Apply the knowledge of mathematics, science, engineering fundamentals, and an engineering Assignents, 3 specialization to the solution of complex Mock tests engineering problems. PO2 Problem analysis: Identify, formulate, review research literature, and analyze complex engineering problems reaching Assignents, 2 substantiated conclusions using first principles of Mock tests mathematics, natural sciences, and engineering sciences. PO3 Design/development of solutions: Design solutions for complex engineering problems and design system components or processes that meet the specified needs with appropriate Assignments, 2 consideration for the public health and safety, and the cultural, Mock tests societal, and environmental considerations. PO4 Conduct investigations of complex problems: Use research- based knowledge and research methods including design of experiments, analysis and interpretation of data, and synthesis of 2 Assignments, Mock tests the information to provide valid conclusions. PO5 Modern tool usage: Create, select, and apply appropriate techniques, resources, and modern engineering and IT tools including prediction and modeling to complex engineering 1 Assignments, Mock tests activities with an understanding of the limitations. PO6 The engineer and society: Apply reasoning informed by the contextual knowledge to assess societal, health, safety, legal and cultural issues and the consequent responsibilities relevant to the 1 Assignments, Mock tests professional engineering practice. PO7 Environment and sustainability: Understand the impact of the professional engineering solutions in societal and environmental - - contexts, and demonstrate the knowledge of, and need for sustainable development. PO8 Ethics: Apply ethical principles and commit to professional ethics and responsibilities and norms of the - - engineering practice. PO9 Individual and team work: Function effectively as an individual, and as a member or leader in diverse teams, and in - - multidisciplinary settings. ECE II Yr I Sem Page | 65 PO10 Communication: Communicate effectively on complex engineering activities with the engineering community and with society at large, such as, being able to comprehend and write - - effective reports and design documentation, make effective presentations, and give and receive clear instructions. PO11 Project management and finance: Demonstrate knowledge and understanding of the engineering and management principles and apply these to one‘s own work, as a member and 1 - leader in a team, to manage projects and in multidisciplinary environments. PO12 Life-long learning: Recognize the need for, and have the preparation and ability to engage in independent and life- long 1 - learning in the broadest context of technological change. 1: Slight (Low) 2: Moderate (Medium) 3: Substantial (High) - : None VI. HOW PROGRAM SPECIFIC OUTCOMES ARE ASSESSED Program Specific Outcomes Level Proficiency assed by PSO1 Talented to analyze, design and implement electrical & electronics Assignments, systems and deal with the rapid pace 1 Mock tests of industrial innovations and developments PSO2 Skillful to use application and control techniques for research and Assignments, 1 advanced studies in Electrical and Mock tests Electronics engineering domain 1: Slight (Low) 2: Moderate (Medium) 3: Substantial (High) - : None VII. COURSE CONTENT: JNTUH SYLLABUS UNIT - I Generators and DC Motors: Principle of operation of DC Machines- EMF equation – Types of generators – Magnetization and load characteristics of DC generators, DC Motors – Types of DC Motors – Characteristics of DC motors – 3-point starters for DC shunt motor – Losses and efficiency – Swinburne‘s test – Speed control of DC shunt motor – Flux and Armature voltage control methods. UNIT - II Transformers & Performance: Principle of operation of single phase transformer – types – Constructional features – Phasor diagram on No Load and Load – Equivalent circuit, Losses and Efficiency of transformer and Regulation – OC and SC tests – Predetermination of efficiency and regulation (Simple Problems). UNIT - III Three Phase Induction Motor: Principle of operation of three-phase induction motors –Slip ring and Squirrel cage motors – Slip-Torque characteristics – Efficiency calculation –Starting methods. UNIT - IV Alternators: Alternators – Constructional features – Principle of operation – Types – EMF Equation – Distribution and Coil span factors – Predetermination of regulation by Synchronous Impedance Method – OC and SC tests. UNIT - V Special Motors & Electrical Instruments : Principle of operation - Shaded pole motors – Capacitor motors, AC servomotor, AC tachometers, Synchros, Stepper Motors – Characteristics, Basic Principles of indicating instruments – Moving Coil and Moving iron Instruments (Ammeters and Voltmeters).. SUGGESTION BOOKS: TEXT BOOKS: 1. Introduction to Electrical Engineering – M.S Naidu and S. Kamakshaiah, TMH Publ. 2. Basic Electrical Engineering - T.K. Nagasarkar and M. S. Sukhija, Oxford University Press, 2005 REFERENCES: 1. Principles of Electrical Engineering - V.K Mehta, S. Chand Publications. 2. Theory and Problems of basic electrical engineering - I.J. Nagarath and D.P Kothari, PHI Publications VIII. LESSON PLAN-COURSE SCHEDULE: Lecture Week Topic Course learning Reference No. No. outcomes UNIT-1: D.C Generators and DC Motors: 1. Introduction to Electrical Know the basics of all Ac Technology and basic concepts and DC machines 1 2. Principle of operation of DC Analyze the operation Machines 3. Construction of DC generator Know the Construction of DC generator 4. EMF equation and problems. Analyze the equation 5. Types of generators Know the types of all generators 6. Problems & Magnetization Understand the problems characteristics of DC generators ECE II Yr I Sem Page | 67 7. load characteristics of DC Analyze the load generators characteristics 8. DC Motors- principle of operation Analyze the operation 9. Types of DC Motors Gathering the Knowledge of types of DC motors Text Book 10. Characteristics of DC motors 2 No- 1,2 11. Swinburne‘s test, Speed control of DC shunt motor – 12. Flux and Armature voltage control methods. Design the various methods Flux and Armature voltage control of speed control 13. methods. Mock Test-1 14. 15. UNIT-II Transformers & Performance: Introduction Understanding the Principle Principle of operation of single phase of operation 16. 3 transformer Analyze the types 17. Types –Constructional features 18. Phasor diagram on No Load and Load 19 Bridge class 1 Design and understanding the 20 Phasor diagram on No Load and Load phasor diagrams Phasor diagram on No Load and Load 21 4 Text Book 22 Equivalent circuit No- 1,2 23 Equivalent circuit Analyze the circuits 24 Bridge class 2 25 Losses in a transformer Know and analyze the losses Know the efficiency 26 Efficiency of transformer and 5 problems 27 OC and SC tests Design the circuits 28 Regulation 29 Bridge class 3 Design the circuits 30 Predetermination of efficiency and
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