SEMESTER-4 ELECTRICAL & ELECTRONICS ENGINEERING

COURSE TITLE : DC MACHINES COURSE CODE : 4031 COURSE CATEGORY : B PERIODS/WEEK : 4 PERIODS/SEMESTER : 56 CREDITS : 4

TIME SCHEDULE

MODULE TOPICS PERIODS

1 Principle and Construction of DC Generators 14

2 Characteristics of DC Generators 14

3 Principle and Construction Of DC Motor 14

4 Characteristics and Testing of DC Motors 14

Total 56

Course Outcome:

Sl. Sub On completion of this course the student will be able:

1 1 To know the working principle and construction of DC machines.

2 To comprehend the conversion of DC.

2 1 To analyze the characteristics of different types of DC generators.

3

1 To know the construction and working of DC Motor.

2 To know the different types of starters.

3 To comprehend speed control of DC motor.

4

1 To comprehend the characteristics of DC motor.

2 To know the methods of testing of DC motors.

3 To know the construction and working of permanent magnet DC Motors.

Specific Outcome:

MODULE I Principle and Construction of DC Generators

1.1.1 To illustrate the constructional details of DC generator. 1.1.2 To list the Classification of DC generators cording to excitation. 1.1.3 To derive the EMF equations of a DC generator. 1.1.4 To solve problems using EMF equation. 1.1.5 To distinguish between terminal voltage and induced EMF. 1.1.6 To design and draw Lap and Wave windings for DC machines. 1.1.7 To describe the working principle of DC Generator. 1.1.8 To describe the working of single loop DC generator with relevant wave forms. 1.1.9 To compare slip ring and split ring.

MODULE II Characteristics of DC Generators 2.1.1 To state and explain armature reaction. 2.1.2 To illustrate the commutation process in DC generators. 2.1.3 To state methods of improving commutation. 2.1.4 To explain why compensating winding is needed. 2.1.5 To state the necessity of equalizer connections. 2.1.6 To explain why shunt generator failing to build up of voltage. 2.1.7 To illustrate open circuit characteristics of shunt generator. 2.1.8 To illustrate open circuit characteristics of separately excited generator. 2.1.9 To define critical field resistance. 2.1.10 To define critical speed. 2.1.11 To illustrate the internal and external characteristics of:

i. Shunt generator. ii. Series generators. iii. Compound generators.

2.1.12 To explain the Parallel operation and load sharing of generators. 2.1.13 To list the applications of DC generators. MODULE III Principle and Construction Of DC Motor 3.1.1 To explain the working principle of DC motor. 3.1.2 To illustrate Constructional details of DC motor. 3.1.3 To list out the Classification of DC motor based on field connection. 3.1.4 To derive the voltage equation of DC motor. 3.1.5 To derive speed and torque equation. 3.1.6 To compute problems using torque and speed equation.

3.1.7 To illustrate the necessity of starters. 3.1.8 To describe different types of starters. 3.1.9 To describe two point starter. 3.1.10 To describe three point starter. 3.1.11 To describe four point starter. 3.1.12 To explain the factors effecting the speed of control of DC motor. 3.1.13 To illustrate the methods of speed control of DC shunt motors. 3.1.14 To illustrate the methods of speed control of DC series motors.

MODULE 4 Characteristics and Testing of DC Motors 4.1.1 To illustrate the mechanical characteristics of series motor. 4.1.2 To illustrate the electrical characteristics of series motor. 4.1.3 To illustrate the performance characteristics of series motor. 4.1.4 To illustrate the mechanical characteristics of shunt motor. 4.1.5 To illustrate the electrical characteristics of shunt motor. 4.1.6 To illustrate the performance characteristics of shunt motor. 4.1.7 To illustrate the mechanical characteristics for compound motor. 4.1.8 To illustrate the electrical characteristics of compound motor. 4.1.9 To illustrate the performance characteristics of compound motor. 4.1.10 To state the losses in DC machines. 4.1.11 To describe the direct loading method to determine the efficiency of DC shunt motor. 4.1.12 To illustrate Swinburne’s test of DC machine. 4.1.13 To State the advantages and disadvantages of Swinburne’s test. 4.1.14 To compute the condition for maximum efficiency. 4.1.15 To List the application of following DC motors.

i. Series. ii. Shunt. iii. Compound.

4.1.16 To describe the construction and working of permanent magnet D.C motor. 4.1.17 To State the applications of permanent magnet D.C motor.

CONTENTS

MODULE - I

D C generator - Working principle of d c generator - single loop D C generator - DC generator -constructional details – Classification - EMF equation – problems - Voltage equation - current relation in various types of DC generator – problems - Armature winding - design of lap and wave winding -

MODULE- II

Armature reaction – commutation - compensating winding - equalizer connections. Characteristics of DC generator – Open circuit characteristics of self and separately excited generator - critical resistance - critical speed -simple problems - internal and external characteristics of self excited generators - Parallel operation of DC generators – problems - application of DC generators.

MODULE -III

DC motor – working principle-constructional details-classifications-voltage equation-problems - Toque equation - speed equation – problems - Factors affecting speed - speed control – Problems - Starting of DC motors - different types of starters.

MODULE - IV

Characteristics of DC motors – electrical characteristics- mechanical characteristics – performance characteristics. Losses and efficiency- condition for maximum efficiency- problems - Testing of DC motor - load test on DC motors – Swinburn’s test- problems - Application of DC motors - Permanent magnet d c motor-construction – working – characteristics - Applications.

REFERENCES:

1. BL Theraja. Electrical technology. Vol- II: S Chand & co. 2. JB Gupta. Theory and performance of electrical Machines: S. K. Kataria & Sons

COURSE TITLE : DIGITAL ELECTRONICS AND MICROPROCESSOR COURSE CODE : 4032 COURSE CATEGORY : A PERIODS/WEEK : 4 PERIODS/SEMESTER : 56 CREDITS : 4

TIME SCHEDULE

MODULE TOPICS PERIODS

1 Digital Fundamentals and Logic Gates. 14

2 Combinational Logic Circuits and Flip Flops 14

3 Sequential Logic Circuits. 14

4 Fundamentals of Microprocessor 8085. 14

Total 56

Course Outcome:

Sl. Sub On completion of this course the student will be able:

1 1 To understand number systems and logic gates.

2 1 To comprehend combinational logic circuits.

2 To analyze the basic building blocks of sequential circuits.

3 1 To comprehend the working of shift registers.

2 To comprehend the working of counter circuits

4 1 To understand the architecture of microprocessor 8085.

Specific Outcome:

MODULE I Digital Fundamentals and Logic Gates. 1.1.1 To understand number systems and logic gates. 1.1.2 To describe the number systems - binary and hexadecimal. 1.1.3 To describe the conversion of decimal system to hexadecimal and binary and vice-versa. 1.1.4 To explain the binary addition, subtraction, multiplication and division. 1.1.5 To explain how the BCD code is formed 1.1.6 To describe the 1`s and 2`s complement. 1.1.7 To describe the subtraction by complement method. 1.1.8 To list the logic gates. 1.1.9 To explain the operations of different types of gates in digital circuits. 1.1.10 To draw the truth table of different types of gates OR, AND, NOT, NAND, NOR AND EX-OR. 1.1.11 To distinguish between TTL,ECL and CMOS 1.1.12 To describe the different logic families and properties. 1.1.13 To explain the sourcing and sinking current of different logic families. 1.1.14 To discriminate the different logic gates.

.

MODULE II Combinational Logic Circuits and Flip Flops

2.1.1 To illustrate the Boolean algebra. 2.1.2 To explain the universal gates using NAND and NOR gates. 2.1.3 To state the De Morgan’s Theorem. 2.1.4 To explains SOP and POS. 2.1.5 To describe use of K map for solving Boolean expressions having 2 and3 variables. 2.1.6 To explain the half adder & full adder circuit. 2.1.7 To Illustrate Encoder-decoder. 2.1.8 To explain multiplexing and de multiplexing. 2.1.9 To explain the operation of basic flip flop circuit. 2.1.10 To explain the operation of clocked flip flop. 2.1.11 To describe the working of SR. 2.1.12 To describe the working of clocked SR. 2.1.13 To describe the working master slave SR, J K, JK Master Slave and D flip-flop.

MODULE III Sequential Logic Circuits.

3.1.1 To identify the different types of shift registers. 3.1.2 To describe a typical shift register using flip-flops(JK,D). 3.1.3 To comprehend the working of counter circuits. 3.1.4 To illustrate the operation of an Up counter.

3.1.5 To illustrate the operation of a Down counter. 3.1.6 To distinguish between the asynchronous counter and synchronous counter. 3.1.7 To describe the Synchronous binary counter and its wave forms. 3.1.8 To Illustrate the BCD decade counter and its wave forms. 3.1.9 To describe different modes of asynchronous counter. 3.1.10 To describe the analog to digital conversion. 3.1.11 To describe the digital to analog conversion.

MODULE IV Fundamentals of Microprocessor 8085.

4.1.1 To describe the functions of a microprocessor. 4.1.2 To explain the features of 8085 microprocessor. 4.1.3 To describe the pin diagram and pin functions of 8085 microprocessor. 4.1.4 To illustrate the 8085 CPU architecture and its functional blocks. 4.1.5 To describe the programming model of 8085. 4.1.6 To explain the instruction classifications of 8085. 4.1.7 To explain the instruction and data formats. 4.1.8 To write simple assembly language programs and execute. 4.1.9 To describe different addressing modes and instruction sets. 4.1.10 To describe data transfer instructions and arithmetic instructions.

CONTENT DETAILS

MODULE I

Digital fundamentals and logic gates - Introduction-number systems - binary number system -conversion of decimal to binary and vice versa - arithmetic operations on binary - binary coded decimal - one’s and two’s complement - use of complements - Hexadecimal number system -conversion of decimal to hex to binary and vice versa - arithmetic operations on hex – BCD - Packed and Unpacked BCD Numbers – HEX - ASCII codes - Logic gates-truth tables - different logic families-Diode Logic-Transistor Logic- Resistor -Transistor- Diode-Transistor Logic – Transistor - Transistor Logic - Complementary Metal Oxide Semiconductor Logic - Propagation delay - current sourcing and current sinking - Fan in - Fan out - Power dissipation - Speed.

MODULE II

Combinational logic circuits and flip-flops - Boolean algebra - De morgan’s theorem- Sum of product and product of sum equations - minterm and maxterms - simplification of Boolean expressions -Karnaugh maps - solutions of Boolean expressions using k map up to 4 variables - Universal gates - Arithmetic operations by digital circuits - Half adder-full adder - half subtractor –full subtractor - Encoder –

Decoder – Multiplexer - de-multiplexer - Sequential logic circuits-synchronous and asynchronous - Flip-flops – SR – D – MS – JK - Truth tables – working – applications of flip flops - Flip flop ICs.

MODULE III

Sequential logic and Data conversion circuits - Shift registers-serial in-serial out - parallel in - parallel out-applications – Counters – need – classification - asynchronous and synchronous counters - up counter - down counter - Asynchronous ripple counter - Mod-N asynchronous counter using Flip Flops - Mod-N synchronous counter (up to 4 bit) using Flip Flops – applications - Digital to analog conversion – Binary weighted D – R - 2R ladder type network for D – Analog to digital conversion – Ramp type ADC – Successive Approximation ADC-applications.

MODULE IV

Fundamentals of Microprocessor - Introduction to Microprocessors - Evolution of Microprocessors – Features of 8085 microprocessor –Pin diagram-Block diagram - Arithmetic Logic Unit - Control Unit-registers-Program counter-DATA transfer-Bus structure-DATA and Address bus - Basic Microprocessor Instructions - Data Transfer Instructions - Arithmetic Instructions - Logic Instructions - Control transfer or Branch or Program Control Instructions - Machine Control Instructions - Addressing Modes - Memory Direct Addressing Mode - Immediate Addressing Mode - Register Direct Addressing Mode - Register Indirect Addressing Mode – simple programmes. Microprocessor Selection - Selection Criteria - Microprocessor Selection table for Common Applications

REFERENCES

1. Anil K. Maini. Digital Electronics Principles, Devices and Applications: Wiley Publications 2. Albert Paul Malvino & Donald P. Leach. Digital principles and applications: McGraw-Hill 3. Ramesh S Gaonkar. Microprocessor architecture programming and applications with the

8085: Prentice Hall

COURSE TITLE : ELECTRICAL ESTIMATING AND COSTING COURSE CODE : 4033 COURSE CATEGORY : A PERIODS/WEEK : 5 PERIODS/SEMESTER : 70 CREDITS : 5

TIME SCHEDULE

MODULE TOPICS PERIODS

1 Wiring Accessories and Illumination Engineering 18

2 Estimation of Domestic Installation 18

3 Estimation of Industrial Installations

17

4 Estimation of Substations 17

Total 70

Course Outcome:

Sl. Sub On completion of this course the student will be able:

1

1 To understand various types of materials required for wiring.

2 To understand different systems of illumination.

2 1 To comprehend the estimation of a domestic installation.

3 1 To know different systems of earthing.

2 To comprehend the estimation of industrial installations.

4 1 To comprehend the estimation of substations.

2 To comprehend the knowledge of IS codes

Specific Outcome:

MODULE I: Wiring Accessories and Illumination Engineering

1.1.1 To describe the specifications of various wiring accessories. 1.1.2 To differentiate various types of wires and cables. 1.1.3 To state the laws of illumination. 1.1.4 To define different terms related to illumination. 1.1.5 To identify various lighting schemes – Direct, indirect, semi direct and semi indirect. 1.1.6 To determine illumination levels required at various poles. 1.1.7 To define the terms used for design of lighting schemes:

i. Space to Height ratio. ii. Depreciation Factor. iii. Maintenance Factor. iv. Utilization Factor.

1.1.8 To deduce different methods of lighting calculation watt per square meter method. 1.1.9 To compute number of lamps required to illuminate various types of rooms, halls etc. 1.1.10 To draw the lighting arrangements. 1.1.11 To comprehend the operation of gas filled lamps and halogen lamps. 1.1.12 To comprehend the operation of arc lamps and CFL. 1.1.13 To comprehend the operation of sodium vapour lamps. 1.1.14 To comprehend the operation of Mercury vapour lamp. 1.1.15 To comprehend the operation of neon lamp and fluorescent lamps.

MODULE II: Estimation of Domestic Installation

2.1.1 To comprehend various wiring system used in domestic wiring. 2.1.2 To comprehend the general IS codes regarding internal wiring. 2.1.3 To compute the conductor size and the procedure for determines the size. 2.1.4 To define the circuits and sub circuits. 2.1.5 To draw the layout of wiring. 2.1.6 To describe the preparation of the estimate and cost of materials used for internal wiring

of different buildings in surface conduit system. 2.1.7 To describe the preparation of the estimate and cost of materials used for internal wiring

of different buildings in concealed system. 2.1.8 To compute simple problems.

MODULE III: Estimation of Industrial Installations

3.1.1 To describe the purpose of earthing 3.1.2 To Know various types of earthing 3.1.3 To Know IE rules regarding earthing systems.

3.1.4 To prepare the estimate and cost of materials used for a standard pipe earthing 3.1.5 To prepare the estimate and cost of materials used for a standard and plate earthing. 3.1.6 To prepare the estimate of wiring materials and cost of wiring for single phase and 3 phase

supplies. i. Domestic pump set. ii. Irrigation pump set etc.

3.1.7 To prepare the estimate and cost of materials for the control panel. 3.1.8 To prepare the estimate and cost of wiring small workshop with the given capacity of

machines 3.1.9 To know the industrial bus-bar system 3.1.10 To prepare the estimate and cost of materials required for giving single phase service

connection without extension of Overhead lines. 3.1.11 To prepare the estimate and cost of materials for 3 phase service connection from the

existing lines. 3.1.12 To prepare the estimate and cost of materials used for service connection using

underground cables. i. Single phase. ii. Three phase.

MODULE IV: Estimation of Substations

4.1.1 To prepare the estimate of various materials used for distribution lines. 4.1.2 To prepare the estimate and cost of materials for extending single phase OH distribution

line 4.1.3 To prepare the estimate and cost of materials for extending 3 Phase OH distribution line 4.1.4 To explain how to prepare an estimate and cost of materials for street lighting using overhead Cables. 4.1.5 To explain how to prepare estimates and the cost of materials for street lighting using UG

cables. 4.1.6 To prepare the estimate and the cost of materials for extending an existing 11 kV

Overhead line 4.1.7 To Study various components of pole materials and substation and their costs

4.2.1 To study IS Codes.

CONTENTS

MODULE I

Wiring accessories- main switch-isolation and load break duty-classification of main switches-functional switches-one way-two way-intermediate switches-knife switches-specification of switches-function and specification of socket outlets, ceiling roses, fan regulators. Fuses-need-classification-specification. Neutral link.

Miniature circuit breaker-classification-function and specification-Residual current devices-classification-functions and specification.

Lamp holders-function-classification-specification. Wiring cables –classification-specification- colour codes.

Illumination- classification of electric lamps- working of Incandescent, halogen & arc lamps, Gas discharge lamps- sodium vapour lamps– neon-mercury vapour lamps-LED lamps. Inverse square law-Lambert’z cosine law-different lighting schemes-illumination levels as per IS standards at various places-estimation of number of luminaries required for the illumination at specific places.

MODULE II

Relevant rules- mention IS 732-IS 3043-various wiring methods as per IS 732.- Relevant sections of CEA regulations 2010 regarding internal wiring.

Classification of Circuits-Light and Power circuits. Sub circuits- light sub circuit- power sub circuits. Capacity of sub circuits. Switch boards-Main switch board-sub switch board-Distribution board-Function –classification- specification.

Selection of cables for internal wiring-cable size calculation-simple problems. Selection criteria for of control switches-main switch. Selection criteria for protective gears-RCCB-MCB-fuse. Co-ordination between fuses or MCBs at different circuit levels- size of earth continuity conductor and earthling conductor.

Preparation of schematic diagrams and wiring diagrams-Single line and multiline. Standard estimation format-mention use of estimation software. Estimation problems regarding Electrification of domestic buildings.

High rise building definition –relevant rules regarding electrification of high rise buildings.

MODULE III

Purpose of earthing-functional earthing-protective earthing- definition of earthing-components of earth resistance-Relevant rules –IS 3074.Various types of earthing-plate- rod-strip- sketches-formulae for electrode resistance-earthing conductor and earth continuity conductor-schematic arrangement of earthing and protective conductor. Simple estimation problems regarding rod and plate earthing.

Installation of motor pump set-need of starter-Rating of back up fuse-rating of cables- rating of earthing conductor-for single phase and three phase pump sets. Estimation problem regarding domestic and irrigation pump sets. Control panel-components of control panel- control units-protection units-measuring instruments. Estimation problems.

Relevant rules regarding industrial electrification-size and rating of busbars-copper and aluminium bus bars-supporting insulator. Estimation problems in small workshops below 50kW connected load.

Service connection- definition-classification-use of weather proof cables -estimation problems for single phase and three phase over head service connections.

MODULE IV

Over head line construction- Relevant sections of CEA regulations 2010 regarding overhead line construction-materials-specifications –classification-AAC-AAAC-ACSR-Size and rating of line conductors-insulators-Pin-shackle-disc-supporting poles- stays-anchor stay-strut pole stay-earthing of line structures, estimation problems regarding the extension of single phase and three phase distribution lines with and without street light- estimation problems regarding the extension of 11kV lines.

Substation- definition-classification-11kV substation- pole mounted - plinth mounted-components-substation earthing-layout.

REFERENCES:

1. IS -732-1989 2. IS- 3043-1987 3. IS- 10118-1982 4. CEA Regulations 2010 5. Raina.K.B.& Bhattacharya. S.K. Electrical Design Estimating and Costing: New Age International. 6. J B Gupta. A Course in Electrical Installation, Estimating & Costing: S K Kataria & Sons. 7. Surjith Singh. Electrical estimating and costing: Danpat Rai &Co.

COURSE TITLE : ELECTRICAL POWER GENERATION, TRANSMISSION AND DISTRIBUTION. COURSE CODE : 4034 COURSE CATEGORY : A PERIODS/WEEK : 4 PERIODS/SEMESTER : 56 CREDITS : 4

TIME SCHEDULE

MODULE TOPICS PERIODS

1 Electrical Power Generation 14

2 Economic Consideration of Electrical Power. 14

3 Electrical Power Transmission 14

4 Electrical Power Distribution 14

Total 56

Course Outcome:

Sl. Sub On completion of this course the student will be able:

1 1 To comprehend the various methods of power generation and its comparisons.

2 1 To comprehend the economic considerations in generation of electric power.

3

1 To understand the different systems of electric power transmission.

2 To understand the effect of line parameters and other factors effecting the transmission of electric power.

4

1 To comprehend different types of power distribution system and its automation.

2 To understand the use of underground cables and insulators in power distribution system.

Specific Outcome:

MODULE I Electrical Power Generation

1.1.1 To identify the different sources of power and their relative importance. 1.1.2 To differentiate conventional and non conventional methods of power generation. 1.1.3 To identify the factors governing location of various types of power station. 1.1.4 To draw schematic layout of;

i. Hydroelectric power stations. ii. Steam power plants. iii. Diesel power plants. iv. Gas power plants. v. Atomic power plants.

1.1.5 To select essential equipment in these power stations. 1.1.6 To determine the co-ordination of different power stations in the system. 1.1.7 To identify the equipment used in Power station. 1.1.8 To draw the layout of power station. 1.1.9 To differentiate various power stations. 1.1.10 To draw the layout of power station switch yard and to identify the equipment. 1.1.11 To solve simple problems regarding the quantity of electricity generated from the available

quantity of water. 1.1.12 To solve simple problems regarding the quantity of electricity generated in a thermal power

station.

MODULE II Economic Consideration of Electrical Power.

2.1.1 To compare capital and operational cost of various types of power stations 2.1.2 To state the terms- load estimate, demand factor, load factor, diversity factor, load curve. 2.1.3 To solve simple problems regarding the above factor. 2.1.4 To describe the Interconnection of power stations and combination. 2.1.5 To distinguish the base load and peak load. 2.1.6 To solve problems about operational schedule based on base load, peak load and other factors. 2.1.7 To compare various Tariff systems. 2.1.8 To determine the cost of energy based on Tariff.

MODULE III Electrical Power Transmission

3.1.1 To describe typical power supply transmission (both OH & UG based on voltage) schemes. 3.1.2 To illustrate systems of transmission based on voltage. 3.1.3 To identify the materials used as conductors and supporting structures. 3.1.4 To determine the sag in conductors due to supports (equal and unequal levels).

3.2.1 To state transmission line parameters, resistance, inductance and capacitance. 3.2.2 To find the resistance inductance and capacitance of two wire and three wire supply lines. 3.2.3 To explain why the transposition of line conductors is essential. 3.2.4 To illustrate the performance characteristics of short transmission lines. 3.2.5 To determine the line losses, efficiency and regulation of short lines and condition for maximum

regulation. 3.2.6 To Illustrate Ferranti effect, phenomenon of corona, skin effect, corona power loss. 3.2.7 To determine sending end voltage, current, power factor, regulation and efficiency of medium

long lines.

MODULE IV Electrical Power Distribution

4.1.1 To discriminate feeders, distributers and service mains. 4.1.2 To describe different methods of distribution and their comparison. 4.1.3 To state voltage regulation. 4.1.4 To describe the different voltage regulating devices. 4.1.5 To describe the methods of power factor improvements in distribution system.

4.2.1 To identify different types of insulators used in distribution system. 4.2.2 To identify the different causes of failure of insulators. 4.2.3 To determine the string efficiency. 4.2.4 To describe methods of improving string efficiency. 4.2.5 To classify different types of underground cables. 4.2.6 To describe the construction of underground cables. 4.2.7 To state grading of cables, capacitance and inter sheath grading. 4.2.8 To describe methods of laying cables. 4.2.9 To Illustrate EHV and HVDC.

CONTENTS

MODULE- I

Conventional and nonconventional energy sources – comparison - Generation of electrical energy -Selection of sight – hydroelectric – thermal and nuclear power plants - Detailed layout - explanation and comparison of hydro electric – thermal and nuclear power plants - calculation of total electrical energy generated in hydroelectric and thermal power stations - problems.

MODULE –II

Types of electrical loads - load on power station - load curve – terms – factors - connected load - Max. Demand – demand factor – load factor – diversity factor – capacity factor – plant use factor- problems - Base load - peak load – interconnected grid system- reason for interconnection- problems - Tariffs –

objectives of tariffs – types of tariffs - comparisons – simple tariff- flat rate tariff- block rate tariff- two part tariff- maximum demand tariff- power factor tariff - problems.

MODULE –III

Electric supply system – Single line diagram of a typical supply scheme – Components- comparisons - Various systems of power transmission-comparison - DC system – Single phase system – Two phase - Three phase - Over head line components - Conductor materials – Line

supports – Insulators – String efficiency- Sag (equal and unequal levels) – Transmission line parameters - Two wire and three wire – calculation – Resistance - Inductance – Capacitance - Transposition. Classification of over head transmission lines - Line losses - Voltage regulation - Transmission efficiency - Ferranti effect - Corona – Skin effect - Problems.

MODULE –IV

Distribution system - components – feeders- distributers – service mains- methods(connections scheme) of distribution – comparisons- OH and UG- requirements of distribution system- voltage regulation – voltage regulating devices- power factor improvements – different types of insulators- causes of failure of insulators- string efficiency- underground cables- construction – classification – grading- methods of cable laying- EHV and HVDC applications.

REFERENCES

1. VK Mehtha. Rohit Mehtha. Principles of Power System: S Chand & co. 2. J B Gupta. A course in Power Systems: S K Kataria &sons.

COURSE TITLE : INDUSTRIAL ELECTRICAL ENGINEERING LAB COURSE CODE : 4036 COURSE CATEGORY : A PERIODS/WEEK : 6 PERIODS/SEMESTER : 84 CREDITS : 3 Course Outcome:

Sl. Sub On completion of this course the student will be able:

1

1 To comprehend with industrial control switch gears and protective switches.

2 To comprehend control circuits for industrial machineries.

3 To understand different types of starters used for three phase motors and their connections.

2

1 To understand different starting methods of motors with time delay and braking.

2 To understand panel board wiring.

3 To understand various steps of executing a project.

LIST OF EXPERIMENTS.

1. To draw standard symbols for motor starters and control devices like, relays, contactors, push buttons, timer relays DOL starter etc.

2. To practice use of crimping tool and crimping of cables.

3. To assemble a DOL starter using push buttons, contactor and OLR unit and run a three phase induction motor.

4. To assemble an automatic Star Delta starter using push buttons, contactor, timer relay and OLR unit and run a three phase induction motor.

5. To assemble a control circuit for run a three phase induction motor.

6. To practice cable joining using a cable joint kit (preferably 3x50mm2)

7. To practice cable glanding of armoured cables (preferably1x25mm2)

8. To practice control panel wiring for 50kW motor which contain all devices as per rules and practices.

COURSE TITLE : ELECTRICAL ENGINEERING DRAWING COURSE CODE : 4037 COURSE CATEGORY : B PERIOD / WEEK :3 PERIOD/SEMESTER :42 CREDIT :2 TIME SHEDULE MODULE TOPIC PERIODS

1 ELECTRICAL SYMBOLS AND LAYOUTS 6 2 DC MACHINES AND ALTERNATORS 12 3 THREE PHASE INDUCTION MOTORS 12 4 SINGLE PHASE TRANSFORMERS 12

TOTAL 42 COURSE OUTCOME SL NO On the completion of this course the student will be able:

1 To understand standard drawing practices. 2 To understand the layout of substations and earthing. 3 To understand the internal structure of DC machine. 4 To understand the internal structure of an Alternator. 5 To understand the internal structure of an Induction Motor. 6 To understand the internal structure of a single phase transformer.

SPECIFIC COURSE OUTCOME MODULE I ELECTRICAL SYMBOLS AND LAYOUTS 1. Standerd electrical symbols used in electrical practices. 2. Substation lay outs – 400KV – 220KV – 66 KV – 11 KV, identify each components. 3. Earthing – plate earthing – pipe earthing. MODULE II DC MACHINES AND ALTERNATORS 1. DC machines :constructional details – field system- yoke – pole core – pole shoe – field winding Armatrue- core - types of winding (no need of detaied exercise )– commutator – brush and brush holder. 2. Altenators : field system – salient pole and non salient pole construction, armature core – windings(no need ofdetaied exercise ).

MODULE III THREE PHASE INDUCTION MOTORS 1. Squirrel cage induction motors : Stator - core construction – types of stator enclosures – types of windings (no need of detailed exercise ), Rotor - construction . 2. Slip ring induction motors : Stator - core construction – types of stator enclosures – types of windings (no need of detailed exercise ), Rotor - construction . MODULE IV SINGLE PHASE TRANSFORMERS Transformer – types – core type – shell type - construction – magnetic portion – core – limb construction – cross section of limb – stepped core – two step – three step - four step (from the diameter of the circum circle of diameter `d`) - assembly of core – magnetic yoke , winding – types of coils - helical – disc – cross over. GENERAL INFORMATION Note - Guidence for setting question paper 1. Equal weightage must be given to each Module. 2. Part A contains FIVE questions , 2 marks each. 3. Part B contains SEVEN questions carries 6 marks each , out of SEVEN, FIVE must be answered. 4. Part C contains 30 marks questions from each module and answer any TWO questions,(attempt any ONE from Module I&II, and any ONE from Module III &IV.) *******************

COURSE TITLE : ELECTRICAL COMPUTER AIDED DRAFTING LAB COURSE CODE : 4038 COURSE CATEGORY : A PERIODS/WEEK : 3 PERIODS/SEMESTER : 42 CREDITS : 2 Course Outcome:

Sl. Sub On completion of this course the student will be able:

1

1 Comprehend with ELECTRIC CAD software.

2 To understand the structure of cables.

3 To know the physical structure of insulator

4 To understand the DC winding

5 To understand the AC winding

6 To Know the operation of starters

LIST OF EXPERIMENTS.

1. To draw and modify simple geometrical figures with the CAD tools.

2. To draw cross sectional elevation of XLPE cable.

3. To draw the half sectional elevation of pin insulator.

4. To develop DC lap winding with equalizer ring and wave winding for a DC machine.

5. To develop DC wave winding for a DC machine.

6. To draw concentric winding for 3 phase machines un-bifurcated with 2 plane overhang.

7. To develop AC mush winding for 3 phase machines.

8. To develop AC lap winding for 3 phase machines double layer full pitched.

9. To draw the line diagram of DOL starter.

10. To draw the line diagram of fully automatic star delta starter.

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COURSE TITLE : DC MACHINES LAB COURSE CODE : 4039 COURSE CATEGORY : B PERIODS/WEEK : 6 PERIODS/SEMESTER : 84 CREDITS : 3

Course Outcome:

Sl. Sub On completion of this course the student will be able:

1

1 To analyze the performance characteristics of shunt motor.

2 To analyze the performance characteristics of series motor.

3 To analyze the performance characteristics of compound motor.

4

To analyze the characteristics of

a) Self excited DC generators b) Separately excited DC generators

LIST OF EXPERIMENTS

1. To collect the name plate data and identify power supply controls and terminals of DC machines.

2. To dismantle and assemble a DC machine and identify parts. 3. To dismantle and assemble two points, three point and four point starters and identify parts. 4. To run a separately excited DC generator at rated conditions and plot OCC, determine critical

speed and resistance. Deduce the same for different speeds. 5. To run a self excited DC generator at rated conditions and to plot OCC to determine critical

speed and critical resistance. Deduce the same for different speeds. 6. To determine efficiency of a DC series generator at different loads. 7. To determine efficiency of a DC compound generator at different loads as;

i. Cumulative compound generator. ii. Differential compound generator.

8. To control the speed of a DC shunt motor in field control method and plot the field current v/s speed curve.

9. To control the speed of a DC shunt motor in armature control method and plot the field current v/s speed curve.

10. To run a DC shunt motor and plot performance curves by direct loading. 11. To run a DC series motor and plot performance curves by direct loading.. 12. To predetermine efficiency of a DC shunt machine (by conducting Swinburne’s test) as a

generator and as a motor.

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COURSE TITLE : MINI PROJECT COURSE CODE : 4009 COURSE CATEGORY : A DAYS / SEMESTER : 5 DAYS (35 periods)/4 CREDITS : 5 General Outcome: GO On completion of the study of this course the students will be able:

1 To create an Industrial environment and culture within the institution.

2 To set up production lab utilizing the infrastructure of the institution.

3 To standardize laboratories to industrial standard, thereby giving exposure to industrial housekeeping standards.

4 To provide students hands on experience on, troubleshooting, maintenance, fabrication, innovation, record keeping, documentation etc thereby enhancing the skill and competency part of technical education.

5 To promote the concept of entrepreneurship.

6 To inculcate innovative thinking and thereby preparing students for main project.

7 To set up self maintenance cell within departments to ensure optimal usage of infrastructure facilities.

Guidelines:

The mini project can be organized into three phases based on the recommendations and evaluation criteria listed below.

Phase1: Standardization of Laboratories

This phase of the mini project can be clubbed with laboratory hours of the semester. Before the commencement of cycle of experiments for the semester, the students should be given instructions on 5S method of industrial housekeeping. Video resources available in the internet can be utilized for the purpose. After the initial summarizing, students should be grouped into batches of 5 and should be entrusted with activities of implementing or maintaining 5S standardization of the laboratory. This ensures that all experiments of the laboratory are performed as per industrial standard.

To elaborate the concept of standardization let us consider a typical case of machine shop. The case can suitably be adopted for any departments as standardization concept is the same for all industry, whether it is manufacturing, service or hospitality.

Case study: Standardization of Machine shop of Mechanical Department.

The machine shop is like any other shop floor, and thus it needs to be organized for convenience and safety. Special dedicated team should be formed for sorting, organizing, and sustaining the organized

work culture at the machine shop. The 5S Team works on the 5 Japanese principles of organization, which have been successfully implemented at various shop floors around the world. The 5 pillars of organization that we aim at are:

Sort (Seiri)

Sort means that you remove all items from the workplace that are not needed for current machine shop activities. This essentially involves segregating items of immediate use from items that are not needed.

Set in Order (Seiton)

Setting in order whatever has been “Sorted.” Labeling and marking down required items of usage. Creating designated areas for frequently used tools and arranging them so that they are easy to find.

Shine (Seiso)

Cleaning up after the work is over. Putting tools and used materials back in their designated places, the way they were “Set in order.” Cleaning and sweeping the workplaces, so as to avoid any hazardous materials spills and other accidents at the workplace.

Standardize (Seiketsu)

Standardize whatever has been achieved so far using the first three pillars. Making it a part of the daily routine and setting aside time to sort, set in order, and shine repeatedly.

Sustain (Shitsuke)

Sustaining is maintaining the clean and organized work environment over a long period of time to enhance productivity.

Once the first two pillars are implemented during the initial sessions of the laboratory, third to fifth pillars should be made a regular activity before commencement of any laboratory work and after concluding any days work and should be monitored. The same criteria can be adopted for any laboratory, irrespective of the programme.

Evaluation of Phase1

This part of the mini project carries 30% of the total marks. The evaluation should be made as group performance in implementing the standardization and individual contribution in setting work place clean and tidy. Evaluations by way of surprise visits made by the Head of Department and Guide during laboratory hours at least twice the semester contribute to the part of total marks.

Phase2: Identifying and solving real time issues

This part of the mini project contributes to 50% of the evaluation criteria. Here the students are encouraged to find out and propose solution to real time problems they observe within the institution or pertaining to the community. Here it is intended to give students exposure to real time problems that

may occur in industry or in real life environments. Their ability to identify and solve problems based on the skills achieved so far is invoked here. It is recommended to identify and solve problems which demand effort that can be completed within the stipulated timing and does not involve complicated designing or programming. Mini projects can be a gate way to final academic projects and if any of the identified problem demands more time and effort, such cases may be carried over to as main project. All safety precautions mandate to the industry should be strictly followed during implementation of the mini project. Safety mentioned here includes both the safety of the student as well as safety of the user to the machine.

Let us consider a real time case study to elaborate the concept. The case is so selected in this context that, irrespective of the program of study, any department can take up the issue and propose a solution.

Case study: DLP projectors installed in our class rooms are developing one of the following problems.

Projector not showing display.

Images appearing on tints of a single shade.

Patches of dots initially appearing on the screen and gradually spreads to the entire screen.

Solution:

1. Projector not showing display.

Check ac mains with a multi meter. Students should be given instructions in handling AC mains for safety. If the problem is with the electrical wiring, rectify the problem. Otherwise

Check mains cord for continuity. Students should be instructed to use multi meter for the purpose. Otherwise

Suspect problem with the power supply. Refer to instruction manual, internet resources or video resources available in the YouTube.

Since modern equipments are coming with advanced casings, usually without any screws, any improper attempt to dismantle the casing can result in permanent damage of the equipment. The students should refer to step by step procedure available in you tube before attempting.

2. Images appearing on tints of a single shade.

Search internet forums for similar cases.

Upon goggling, searching, it is identified that the problem is with missing one of R G B connections of VGA cable.

Attempt repairing the cable. If not replace the cable.

If not problem with the cable, check projector logical board for problem.

It is to be noted that merely replacing the cable will not solve the problem for ever. Students should be encouraged to find the cause for the cable failure. Simply

replacing the cable without solving the cause can definitely end up in repetition of the problem. In this typical case, the cables are often damaged by keeping the loose end of the cable on the floor there by walked over by commuters. The loose end should be properly tied using cable ties so that the loose end does not fall over.

3. Patches of dots initially appearing on the screen and gradually spreads to the entire screen.

Clean the lens for any residue. Try zooming the lens if the dots move along with axis of rotation, dirt or residue on lens is suspected. If not

Check internet forum for solution. Upon goggling, you will find that the problem can be with DLP panel and need a replacement.

The students should be encouraged to find the reason for the failure. Internet forum suggests dampness from roof or improper shut down that accounts for DLP failure.

Case studies of similar nature impart skill and competency part into the programme.

Students as individual or a team of 2 may be entrusted with providing solution to similar problems. Cases like ceiling leakage or dampness problem of a building in case of civil engineering, trouble shooting a computer network, resource sharing through network within the institution for computer engineering students can be considered as part of the mini project. Fabrication of test jigs for electronics etc.

It is also encouraged to run production centers or running subassembly units of nearby industries within the campus are also encouraged.

Phase3: Documentation

Documentation accounts for 20% of the total evaluation. Students are required to submit detailed project report of the entire semester work of mini project. They should be encouraged to make use of documentation tools like Latex for preparation of the report.

Innovative ideas of commercial values should be encouraged to be continued as main project for the forth coming semester.

Evaluation

Standardization (30%) Problem identification and solving (50%) or collaborative work (50%) or involvement in production centre (50%)

Documentation (20%)Group (15%) Individual (15%)