Lesson Plan - Government Polytechnic College, Ambalagpambala.ac.in/.../uploads/2016/08/Lesson-Plans-4th-Sem-Electrical.pdf · Lesson Plan Name of the Faculty : ... displacement of

Lesson Plan

Name of the Faculty :

Discipline : Electrical Engineering

Semester : 4th Semester

Subject : ELECTRICAL MACHINES - I Lesson Plan Duration : 15-16 Week

Week Theory Practical

Lecture Day

Topic (including assignment / test) Practical Day

Topic

1 Definition of motor and generator, concept of torque

1, 2 Measurement of the angular displacement of the rotor of a slip-ring induction motor on application of DC to stator of motor winding in sequence and simultaneously to each phase of rotor winding

2 Torque development due to alignment of two fields and the concept of torque angle

3, 4 Speed control of dc shunt motor (i) Armature control method (ii) Field control method

3 Electro-magnetically induced emf 5 Study of dc series motor with starter (to operate the motor on no load for a moment)

4 Elementary concept of an electrical machine

6 Study of 3 point starter for starting D.C. shunt motor

5 Comparison of generator and motor 7, 8 To perform open circuit and short circuit test for determining: (i) equivalent circuit (ii) the regulation and (iii) efficiency of a transformer from the data obtained from open circuit and short circuit test at full load

6 Main constructional features 9 To find the efficiency and regulation of single phase transformer by actually loading it

7 Types of armature winding 10 Checking the polarity of the windings of a three phase transformer and connecting the windings in various configurations

8 Function of the commutator for motoring and generation action

11 Finding the voltage and current relationships of primary and secondary of a three phase transformer under balanced load in various configurations conditions such as (a) Star-star (b) Star delta (c) Delta star

(d) Delta - Delta configuring conditions.

9 Factors determining induced emf

10 Factors determining the electromagnetic torque

11, 12 Types of dc generation on the basis of excitation, voltage built up in a dc shunt generator

13, 14 Significance of back e.m.f., the relation between back emf and Terminal voltage

15 Armature Reaction

16 Commutation methods to improve commutation

17, 18, 19

Performance and characteristics of different types of DC motors

20, 21 Speed control of dc shunt/series motors

22, 23 Need of starter, three point dc shunt motor starter and 4-point starter

24 Applications of DC motors

25 Losses in a DC machine

26 Determination of losses by Swinburne’s test

27 Transformers (single phase)- Introduction

28 Constructional features of a transformer and parts of transformer

29 Working principle of a transformer

30 EMF equation

31, 32 Transformer on no-load and its phasor diagram

33 Transformer – neglecting voltage drop in the windings – Ampere turn balance – its phasor diagram

34, 35 Mutual and leakage fluxes, leakage reactance

36, 37 Transformer on load, voltage drops and its phasor diagram

38 Equivalent circuit

39, 40 Relation between induced emf and terminal voltage, regulation of a transformer-mathematical relation

41 Losses in a transformer

42, 43, 44, 45

Open circuit and short circuit test. Calculation of efficiency, condition for maximum efficiency-maintenance of Transformer, scheduled Maintenance

46, 47 Auto transformer construction, saving of copper, working and applications

48 Different types of transformers including dry type transformer

49 Construction of three phase transformers

50 accessories of transformers such as Conservator, breather

51 Buchholz Relay

52 Types of three phase transformer i.e. delta-delta, delta-star, star-delta and star-star

53 Conditions for parallel operation (only conditions are to be studied)

54 On load tap changer

55 Difference between power and distribution transformer

56 Cooling of transformer

Lesson Plan

Name of the Faculty :

Discipline : Electrical Engineering

Semester : 4th Semester

Subject : ENERGY SOURCES AND MANAGEMENT OF ELECTRICAL ENERGY Lesson Plan Duration : 15-16 Week

Week Theory Practical

Lecture Day

Topic (including assignment / test) Practical Day

Topic

1, 2 Introduction: Various energy sources 3 importance of non conventional sources of

energy

4 present scenario

5 future prospects 6 economic criteria

7 Solar Energy: Principle of conversion of solar radiation into heat

8, 9 photo-voltaic cell

10, 11 electricity generation

12, 13 solar water heaters 14, 15 solar furnaces

16 solar cookers 17 solar lighting

18 solar pumping 19, 20,

21, 22, 23

Bio-energy – Introduction Bio-mass conversion technologies- wet and dry processes. Methods for obtaining energy from biomass. Power generation by using gasifiers

24 Wind energy conversion 25 windmills

26 electricity generation from wind 27, 28,

29 types of wind mills

30 Local control

31 energy storage 32, 33 Geo-thermal sources 34 Ocean thermal electric conversion 35, 36 open and closed cycles 37 Hybrid cycles

38, 39, 40

Prime movers for geo-thermal energy conversion

41 Steam Generation 42 Electricity Generation 43, 44,

45, 46 Magneto Hydro Dynamic (MHD) Power Generation

47, 48, 49, 50

Chemical Energy Sources: Design and operating principles of a fuel cell

51 conversion efficiency

52 work output and e.m.f of fuel cells

53 Applications 54, 55 Need for energy conservation with

brief description of oil and coal crisis

56, 57 Environmental aspects 58 Energy efficiency- its significance

59, 60 Energy efficient technology an overview

61, 62 Energy conservation in Domestic sector- Lighting, home appliances

63 Need for energy efficient devices

64 Energy conservation in Industrial sector- Motors

65, 66 Industrial lighting 67, 68 Distribution system 69 Pumps 70 Fans, Blowers

71, 72 Energy conservation in Agriculture sector, Tube-well pumps

73 diesel-generating sets

74 Standby energy sources 75, 76 Macro Level approach for energy

conservation at design stage

Lesson Plan

Name of the Faculty :

Discipline : Electrical Engineering

Semester : 4th Semester

Subject : ELECTRONICS - II Lesson Plan Duration : 15-16 Week

Week Theory Practical

Lecture Day

Topic (including assignment / test) Practical Day

Topic

1 Difference between voltage and power amplifier

1 To study the effect of coupling capacitor on lower cut off frequency and upper cut off frequency by plotting frequency response curve of a two stage RC coupled amplifier

2, 3 Important terms in Power Amplifier, collector efficiency, distortion and dissipation capability

2 To measure (a) optimum load (b) output power (c) signal handling capacity of a push-pull amplifier

4, 5, 6 Classification of power amplifier class A, B and C

3 To observe the effect of negative current feedback on the voltage gain of a single stage transistor amplifier by removing emitter bye-pass capacitor

7 Class A single-ended power amplifier, its working and collector efficiency

4 To measure (a) voltage gain (b) input and output impedance for an emitter follower circuit

8 Impedance matching in a power amplifier using transformer

5 To measure frequency generation in Hartley

9 Heat sinks in power amplifiers 6 To measure frequency generation in R-C Phase Shift oscillator

10 Push-pull amplifier: circuit details, working and advantages (no mathematical derivations)

7 To observe the differentiated and integrated square wave on a CRO for different values of R-C time constant

11, 12 Principles of the working of complementary symmetry push-pull amplifier

8 Clipping of both portion of sine-wave using : diode and dc source

13 Tuned Voltage Amplifier - Introduction 9 Clipping of both portion of sine-wave using : zener diodes

14, 15 Series and parallel resonance ( No mathematical derivation)

10 Clamping a sine-wave to : Negative dc voltage

16, 17 Single and double tuned voltage amplifiers

11 Clamping a sine-wave to : Positive dc voltage

18 Frequency response of tuned voltage amplifiers

12 To generate square-wave using an astable multivibrator and to observe the wave form on a CRO and verify the result using p-spice software

19, 20 Applications of tuned voltage amplifiers 13 To observe triggering and working of a bistable multivibrator circuit and

observe its output wave form on a CRO

21, 22 Feedback and its importance, positive and negative feedback and their need

14 To use the op-Amp (IC 741) as inverting one and non-inverting amplifiers, adder, comparator, integrator and differentiator and verify the result using p-spice software

23 Voltage gain of an amplifier with

negative feedback

15 To study the pin configuration and working of IC 555 and its use as monostable and astable multivibrator

24 Effect of negative feedback on voltage gain, stability, distortion, band width, output and input impedance of an amplifier (No mathematical derivation)

16 To realize the regulated power supply by using three terminal voltage regulator ICs such as 7805, 7905, 7915 etc. and verify the result using p-spice software

25, 26 Typical feedback circuits

27 Effect of removing the emitter by-pass capacitor on a CE transistor amplifier

28 Emitter follower and its applications

29 Sinusoidal Oscillators – positive feedback in amplifiers

30 Difference between an oscillator and an alternator

31 Essentials of an oscillator

32, 33, 34

Circuit details and working of LC oscillators viz. Tuned Collector, Hartley and Colpitt’s oscillators

35 R-C oscillator circuits

36 phase shift and Wein bridge oscillator circuits

37 Introduction to piezoelectric crystal and crystal oscillator circuit

38, 39 Concept of Wave-shaping

40 R-C differentiating

41 integrating circuits

42, 43 Diode clipping circuits

44, 45 Diode clamping circuits

46 Applications of wave-shaping circuits

47 Transistor as a switch (explanation using CE transistor characteristics)

48 Collector coupled astable multivibrator

49 monostable multivibrator

50 bistable monostable

51 Brief mention of uses of multivibrators

52, 53 Working and applications of transistor inverter circuit using power transistors

54, 55 Working Principles of different types of power supplies

56, 57 CVTs, IC voltage regulator (78 XX,79XX)

58 The basic operational amplifier

59 The differential amplifier

60 The emitter coupled differential amplifier

61 Offset even voltages and currents

62 Basic operational amplifier applications, integrator and differentiator, summer, subtractor

63 Familiarization with specifications and pin configuration of IC 741

64 Block diagram and operation of 555 IC timer

Lesson Plan

Name of the Faculty :

Discipline : Electrical Engineering

Semester : 4th Semester

Subject : ELECTRICAL ENGINEERING DESIGN AND DRAWING - II Lesson Plan Duration : 15-16 Week

Week Theory Practical

Lecture Day

Topic (including assignment / test) Practical Day

Topic

1 DOL starting of 3-phase induction motor

2 3-phase induction motor getting supply from selected feeder

3, 4 Forwarding/reversing of a 3-phase induction motor

5 Two speed control of 3-phase induction motor

6 Limit switch control of a 3-phase induction motor

7, 8 Sequential operating of two motors using time delay relay

9 Manually generated star delta starter for 3-phase induction motor

10 Automatic star delta starter for 3-phase Induction Motor

11 Concept and purpose of earthing 12, 13,

14 Different types of earthing, drawings of plate and pipe earthing

15, 16 Procedure of earthing, test of materials required and costing

17 Method of reducing earth resistance

18 Relevant IS specifications of earth electrode for earthing a transformer, a high building

19 Earthing layout of distribution transformer

20, 21, 22

Substation earthing layout and earthing materials

23 Key diagram of 11KV sub-stations

24 Key diagram of 33KV sub-stations 25 Key diagram of 66KV sub-stations 26 Key diagram of 132 KV sub-stations 27 Drawings of Machine Parts : End

cover of induction motor

28 Drawings of Machine Parts : Rotor of a squirrel cage induction motor

29 Drawings of Machine Parts : Field coil of a DC motor

30 Drawings of Machine Parts : Terminal plate of an induction motor

31 Drawings of Machine Parts : Motor body (induction motor) as per IS specifications

32 Drawings of Machine Parts : Sliprings of 3-phase induction motor

Lesson Plan

Name of the Faculty :

Discipline : Electrical Engineering

Semester : 4th Semester

Subject : INSTRUMENTATION Lesson Plan Duration : 15-16 Week

Week Theory Practical

Lecture Day

Topic (including assignment / test) Practical Day

Topic

1 Importance of measurement 1 To measure the level of a liquid using a transducer

2 basic measuring systems 2 To measure temperature using a thermo-couple

3 advantages and limitations of each measuring systems and display devices

3 Study and use of digital temperature controller

4 Transducers: Theory, construction 4 Use of themistor in ON/OFF transducer

5 Use of resistance 5, 6 Study of variable capacitive transducer

6 Use of inductance 7 Draw the characteristics of a potentiometer

7 Use of capacitance 8 To measure linear displacement using LVDT

8 Use of electromagnetic 9, 10 To study the use of electrical strain gauge

9 Use of piezo electric type 11 To study weighing machine using load cell

10 wire wound potentiometer 12 To study pH meter

11 LVDT

12 strain gauges and their different types such as inductance type

13 resistive type

14 wire and foil type

15 Gauge factor

16 gauge materials and their selections

17 Use of electrical strain gauges

18 strain gauge bridges and amplifiers

19, 20, 21

Different types of force measuring devices and their principles

22, 23 load measurements by using elastic transducers and electrical strain gauges

24, 25 Load cells, measurements of torque by brake

26 dynamometer

27, 28 electrical strain gauges

29, 30 speed measurements; different methods, devices

31 Bourdon pressure gauges

32, 33, 34

electrical pressure pick ups and their principle, construction and applications

35 Use of pressure cells

36, 37 Basic principles of magnetic flow meters

38, 39 Basic principles of ultrasonic flow meters

40 Bimetallic thermometer

41 thermoelectric thermometers

42 resistance thermometers

43 thermocouple

44 thermisters and pyrometer

45 Temperature recorders

46 Measurement of other non electrical quantities such as humidity

47 pH, level

48 vibrations

Lesson Plan

Name of the Faculty :

Discipline : Electrical Engineering

Semester : 4th Semester

Subject : ESTIMATING AND COSTING IN ELECTRICAL ENGINEERING Lesson Plan Duration : 15-16 Week

Week Theory Practical

Lecture Day

Topic (including assignment / test) Practical Day

Topic

1 Purpose of estimating and costing 2 proforma for making estimates 3 preparation of materials 4 schedule, costing, price list

5, 6, 7 preparation of tender document (with 2-3 exercises)

8 net price list, market survey, overhead charges, labour charges, electrical point method and fixed percentage method,

9 contingency 10 enquiries, comparative statements,

orders for supply, payment of bills

11 Tenders – its constituents, finalization, specimen tender

12 Cleat 13 batten 14 Casing & capping

15 conduit wiring 16 comparison of different wiring

systems

17 selection and design of wiring schemes for particular situation (domestic and Industrial)

18 Selection of wires and cables, wiring accessories and use of protective devices i.e. MCB, ELCB etc

19 Use of wire-gauge and tables ( to be prepared/arranged)

20, 21 Domestic installations; description of various tests to test the wiring installation before commissioning

22 standard practice as per IS and IE rules

23, 24 Planning of circuits, sub-circuits and position of different accessories

25 electrical layout 26, 27,

28, 29 preparing estimates including cost as per schedule rate pattern and actual

market rate

30 Industrial installations; relevant IE rules and IS standard practices

31, 32, 33

planning, designing and estimation of installation for single phase motors of different ratings

34, 35, 36, 37, 38, 39

electrical circuit diagram, starters, preparation of list of materials, estimating and costing exercises on workshop with singe-phase, 3-phase motor load and the light load (3-phase supply system)

40, 41, 42, 43, 44

Service line connections estimate for domestic upto 10 KW

45, 46, 47, 48, 49

Industrial loads upto 20 KW (over-head and under ground connections) from pole to energy meter

50, 51, 52, 53

Transmission and distribution lines (overhead and underground) planning and designing of lines with different fixtures, earthing etc. based on unit cost calculations

54 Types of substations

55 substation schemes and components

56, 57 estimate of 11/0.4 KV pole mounted substation up to 200 KVA

58 rating, methods of earthing of substations

59 Key Diagram of 66 KV/11KV Substation

60 Key Diagram of 11 KV/0.4 KV Substation

61, 62 Single line diagram, layout sketching of outdoor, indoor 11kV sub-station

63, 64 Single line diagram, layout sketching of outdoor, indoor 33kV sub-station