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Department of Electrical Technology Electrical Machines & Equipment

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Department of Electrical Technology

CURRICULUM

FOR

Electrical Machines and Equipment


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6 ................................................................................................................Electric Circuits & Measurements-I 12.....................................................................................................................................Electromechanical W/S 17......................................................................................................................................................Mathematics-I 19............................................................................................................Electrical circuits & Measurements-1I 25....................................................................................................................................................Mathematics-II 27..........................................................................................................................DC Machines &Transformers 33............................................................................................................................Technical Electrical Drawing 37.................................................Single phase machine repair and rewinding &Electrical Protection W/S 42........................................................................................................................................................AC Machines 48................................................................................................................Programmable Control Technology 53................................................................................................................................................Power Electronics 58..................................................................................................................................................Industrial Safety 62....................................................................................................................Three Phase Motors Control W/S 66........................................................................................................................Electronic Control of Machines 71.........................................................................................................................Automatic Control Technology 77.................................................................................................................................Small Electrical Machines 81.......................................................................................................................................................Electric Drive 85........................................................................................................Generating Plants & Protection Systems

Three Phase Induction Motor Rewinding & Maintenance W/S 92 Programmable Control of Electrical Motors W/S 96


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Associate Degree Program

Number of Units CTH T W L CRH

Prereq. Course Title Code No.

4 2 2 3 General English Language ENG 101 1

4 2 2 3 Physics PHY 104 2

4 1 3 3 Mathematics-I MAT 181 3

4 4 2 Computer Applications COM 101 4

4 2 2 3 Electrical circuits & Measurements-I ELT 131 5

6 6 3 Electromechanical W/S ELT 141 6

Firs

t Sem

este

r

26 1 16 9 17 Total Number of units



4 2 2 3 Specialized English Language-1 ENG 142 1

2 2 2 Professional Ethics & Communication Skills MGT 101 2

3 1 2 2 MAT 181 Mathematics-II MAT 222 3

4 2 2 3 ELT 131 Electrical circuits & Measurements-1I ELT 132 4

4 2 2 3 ELT 131 DC Machines &Transformers ELT 142 5

2 2 1 Technical Electrical Drawing ELT 133 6

6 6 3 Single phase machine repair and rewinding

&Electrical Protection W/S ELT 143 7

Seco

nd S

emes

ter



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4 2 2 3 Specialized English Language-II ENG 243 1

2 2 2 Arabic Language ARB 101 2

2 2 2 Islamic Culture-I ISL 101 3

4 2 2 3 ELT 142 AC Machines ELT 241 4

4 2 2 3 ELT 132 Programmable Control Technology ELT 231 5

4 2 2 3 ELT 132 Power Electronics ELT 242 6

1 1 1 Industrial Safety ELT 232 7

4 4 2 Three Phase Motors Control W/S ELT 243 8

Thi

rd S

emes

ter

25 12 13 19 Total Number of units



2 2 2 Islamic Culture-II ISL 102 1

4 2 2 3 ELT 242 Electronic Control of Machines ELT 244 2

4 2 2 3 ELT 132 Automatic Control Technology ELT 233 3

2 2 2 ELT 241 Small Electrical Machines ELT 245 4

2 2 2 ELT 241 Electric Drive ELT 246 5

4 1 2 1 2 ELT 241 Generating Plants & Protection Systems ELT 247 6

4 4 2 Three Phase Induction

Motor Rewinding & Maintenance W/S

ELT 248 7

4 4 2 Programmable Control of Electrical Motors W/S ELT 249 8

Fort

h Se

mes

ter



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4 Co-operative Training ELT 299 1 Sum

mer


102 3 56 43 75 Total Number of Program Units

CRH: Credit Hours. L: Lecture Hours. W: Laboratory / Workshop Hours T: Tutorial Hours CTH: Weekly Contact Hours.


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Electrical Machines & Equipment Major Electrical Technology Department

ELT 131 Code Electric Circuits & Measurements-I Course Title

Prerequisites

4 3 2 1 Semester

3 Credit Hours (Hour/week)

2 L

2 W

T

Contact Hours

(Hour/week)

Course Description:

This course covers electrostatics, DC circuits,

and DC Measurements. The course contents include: capacitors, batteries, Ohm's law, Kirchoff's laws, series& parallel circuits, power, and DC bridges. The course also includes also DC measurements and measurement errors.

General Goal:

The course is designed to give the student a basic knowledge of electrostatic, batteries, fundamentals of DC current, analyses of DC circuits, in addition to DC measurements. Behavioral Objectives:

The student should be able to:

• Explain the terms used in basic electrostatics. • Describe the types of capacitors and how to determine the total capacitance for

different capacitor connections. • Describe the types of batteries and their construction and connections. • Explain the different resistor connections and calculate the total resistance. • Explain and apply Ohm's law. • Represent Ohm's law graphically. • Apply Kickoff’s laws, voltage and current division rules. • Apply simple DC circuit analysis. • Explain the needs for instrumentation. • Explain the basic principle of an electrical measuring system. • Distinguish between possible and probable errors. • Describe the source of errors in a measuring system and carry out an error analysis. • Explain how DC bridges used in measurements. • Describe how to use the oscilloscope in measuring different electric quantities.


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Topics • Basic Electrostatic. • Batteries. • Electrical Quantities, DC currents laws, and analysis of DC circuits • DC current measurements and the instruments used in the measurements • Laboratory experiments.

• Electrical Technology, Edward Hughes • Introductory Circuit Analysis, Robert L. Boylestad, 2000 • Principles of Electric circuits, Thomas L. Floyd, 1999 • Fundamentals of Electric Circuits, Charles K. Alexander, N.

O. Sadiaka, 2000 • Electric Circuits, Joseph Edminister, Mahmood Nahoi, 1997

References:


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Detailed Curriculum (Theory)

Behavioral Objectives Contents Hrs The student should be able to: • Define the elementary charge and

coulomb's law. • Calculate force between charges. • Describe the characteristics of

electric fields. • Define the terms electric potential,

electric current, ect. • Explain the capacitor principle and

describe construction. • Calculate capacitance from

geometric dimensions. • Determine the capacitance of series

and parallel connections of capacitors.

1-Electrostatic Electric charge • Electric charge. • Coulomb's law. • Force between two charges. • Electric field • Electric potential. • Potential difference.

Capacitors • Capacitance of an isolated ball. • Capacitance of an earthed ball capacitor. • Capacitance of a parallel plate capacitor. • Series and parallel connections of

capacitors.

8

• Describe the construction of

batteries. • Explain batteries connections.

2-Batteries • Primary cells. • Secondary cells. • Connection of cells in a battery

2

• Define basic electrical quantities. • Calculate the resistance of a

homogeneous conductor. • Define Ohm's law and represent it

graphically. • Apply Kirchoff's current and

voltage laws. • Explain the different methods of

resistance connections. • Define the electrical power, the

work done, and efficiency

3-DC circuits Electrical Quantities • Quantity of charge. • Current intensity. • Voltage. • Resistance.

Ohm's law and Kirchoff's laws • Simple circuit calculations. • Series connection. • Voltage divider rule. • Parallel connection. • Current divider rule. • Series parallel connection

Power, work done and efficiency.

12


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Behavioral Objectives Contents Hrs The student should be able to: • Explain the basic principles of an

electrical measuring system. • Distinguish between possible and

probable errors and absolute and relative errors.

• Describe the source of errors in a measuring system and carry out an error analysis.

• Explain the basic principle of measuring instruments.

• Explain how the ranges of ammeters and voltmeters can be extended.

• Describe the calibration presses of ammeters and voltmeters.

• Explain the principle of measuring

resistance using bridge circuits. • Draw Wheatstone bridge circuit

and drive the equation for a balanced bridge.

• Explain how the bridge can be used for measurement of small resistance.

• Describe an oscilloscope.

4-DC Measurements Introduction to electrical measurements. Measurement errors. DC Measuring devices. • The Galvanometer. • Galvanometer deflection and sensitivity. • The DC ammeter. • The DC voltmeter. • The Ohmmeter. • Calibrations of DC ammeters. • Calibrations of DC voltmeters.

DC Bridges • Wheatstone bridge.

Oscilloscopes • The block diagram of an oscilloscope. • The function of each block.

6


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Detailed Curriculum (Practice)

Behavioral Objectives Contents Hrs The student should be able to: • Connect the batteries in series. • Connect ammeters and voltmeters. • Use Ohm's law to calculate the load

resistance. • Measure the current using

ammeters. • Measure the voltage using

voltmeters. • Perform the battery maintenance.

Batteries: 1- Series connection of batteries • Measurement of the current. • Measurements of the voltage between

the terminals of each battery. • Measurements of the voltage across the

load terminals. • Calculation of the load resistance.

2- Parallel connection of batteries. • Measurements of the current through

each battery. • Measurement of the load current. • Calculation of the load resistance.

3- Batteries maintenance.

6

• Apply the resistance color code. • Use the AVO mater. • Connect the ammeter and voltmeter

to measure a resistance. • Satisfy ohm's law in the laboratory. • Represent Ohm's law graphically. • Find the average resistance

• Connect a group of resistors in

series. • Satisfy Kirchoff's voltage law in

the laboratory. • Check the voltage divider rule.

• Connect a group of resistors in

parallel. • Satisfy Kirchoff's current law in the

laboratory.

2-DC circuits 1- Resistance measurement.

• Find the resistance using the color code. • Resistance measurements using the

AVO meter. • Resistance measurements using the

ammeter voltmeter method. • Finding the average value of resistance.

2-Series connection of resistors. • Make sure that the sum of voltages

across the resistors equals the total voltage (Satisfying Kirchoff's voltage law)

3-Parallel connection of resistors. • Make sure that the sum of currents

through the resistors equals the total current (Satisfying Kirchoff's current law)

12


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Behavioral Objectives Contents Hrs • Connect a group of resistors in a

series/parallel connection. • Satisfy Kirchoff's voltage and

current laws in the laboratory.

4- Series/Parallel connections of resistors. • Measurements of current through each

resistor. • Measurements of voltage across each

resistor, and the source voltage. • Satisfy Kirchoff's laws.

• Recognize the instruments used in

DC measurements. • Calculate the percentage errors for

different connections. • Recognize Wheatstone bridge • Connect Wheatstone bridge. • Use the Galvanometer and obtain

the balance in the bridge. • Measure and calculate the power in

a resistive load. • Recognize and connect the

wattmeter. • Recognize the Oscilloscope. • Use the Oscilloscope to measure dc

quantities.

3-Methods of DC Measurements 1- Effect of measuring instruments on the circuits.

• Find the percentage error in resistance measurements.

2- Measurement of resistance using Wheatstone bridge. • Connection of Wheatstone bridge. • Using the Galvanometer to check the

balance in the bridge. 3- Measurement of power in a resistive load. • Measurements of current through the

load. • Measurements of voltage across the

load. • Measurements of the load power using

the wattmeter. • Satisfaction of the power law.

4- Measurement of DC voltage and current using the Oscilloscope. • Connecting a DC source with a variable

resistive load. • Sketch the shape of the wave shown on

the oscilloscope.

10


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ELT 141 Code Electromechanical W/S Course Title

Prerequisites

4 3 2 1 Semester


L

6 W

T

Contact Hours

(Hour/week)

Course Description:

This practical course prepares the student to use

mechanical tools especially those used in electrical works. It also trains the students on the fundamentals of electrical installations. In addition, this course trains the student to implement electrical installations to domestic and industrial buildings.

General Goal:

The course aims to enable students to use the mechanical tools in a professional way. It also trains students to install and put into operation simple domestic and industrial installations Behavioral Objectives:


• Perform some mechanical and electrical jobs. • Read and draw simple electrical layouts and their symbols. • Install, put into operation, test and carry out trouble shooting in domestic installations. • Find out and clear the faults in simple electrical installations.


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Topics • Basic mechanical tools and mechanical skills. • Mechanical and electrical work to build and assemble a small transformer. • Fundamentals of electrical installation. • Electrical installations for domestic and industrial buildings.

• Top 2 and 4: Electric Power Engineering Proficiency Course, Deutsche

Gesellschaft Fur Technische Zusammenarbeit (GTZ References:


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Behavioral Objectives Contents Hrs The student should be able to: • Distinguish and apply the different

mechanical tools. • Take into consideration the

characteristics of material to produce work pieces for later processing.

• Saw and file work pieces of metal and synthetic material to proper shape and remove any burrs.

1- Basic mechanical tools and mechanical skills: • Measuring, laying out, punching,

drilling, sawing, filing, cutting thread, preparing fitting.

• Carrying out simple mechanical job

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• Measure, layout, punch, drill, and

file the work piece. • Prepare the required number of

laminations • Measure, lay out, punch, drill, and

file the work piece. • Prepare the required coil forms in a

proper way. • Assemble the coil forms. • Select the proper wire size. • Determine the number of turns • Wind the primary and secondary

coils and isolate them. • Check the coil for short circuit

between layers.

2- Mechanical and electrical work to build and assemble a small transformer: Preparing of lamination • Measuring and laying out material with

well chosen tools. • Selecting suitable file. • Choosing the proper tapping drill sizes. • Producing countersinks for screw heads

with a help of bench drills Preparing coil forms • Measuring and laying out material with

well chosen tools. • Fixing and filing the work piece. • Machining and drilling the coil form in a

proper way. Winding technique • Assembling the coil forms. • Selecting the proper wire size. • Determining the number of turns • Winding the primary and secondary

coils and isolate them. • Checking the coil for short circuit

between layers

30


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Behavioral Objectives Contents Hrs The student should be able to: • Manufacture the transformer case.

• Fasten the transformer and coils

inside the case. • Install ON/OFF switch, indicator

lamp, voltmeter, and connecting terminals.

• Test the transformer.

Manufacturing the transformer case • Measuring and laying out material with

well chosen tools. • Fixing and filing the case.

Assembling the transformer. • Fastening the transformer and coils

inside the case. • Installing ON/OFF switch, indicator

lamp, voltmeter, and connecting terminals.

• Testing the transformer.

• Read and draw different forms of

diagrams for domestic installations. • Distinguish different types and

colors of electric wires. • Determine the load power and

select the suitable wiring (cross-section, and type of insulation).

3- Fundamentals of electrical installation: • Components of electrical circuits and

their symbols. • Wire types and colors. • Wires trimming, soldering, connecting

by screw. • Power calculations and balanced

distribution on the three phases • Cables and conductor size selections.

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• Determine the working steps

necessary for the installation of simple domestic installations.

• Draw different forms of diagrams for domestic and industrial installations (Single line diagram, schematic diagram, etc).

• Determine the place of the distribution panel and fix it.

4- Electrical installations for domestic and industrial buildings: • Drawing the circuit diagram with

symbols. • Determining the place of the distribution

panel. • Fixing the distribution panel. • Load power calculations and proper

cable election. • Determining conduit size (cross section) • Determining conduit paths

30


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Behavioral Objectives Contents Hrs • Choose the proper cables, conduit,

and circuit breakers. • Fix conduit. • Lay and fasten cables in conduits

and ducts • Select and install circuit breakers. • Put into operation , test, perform

troubleshooting and describe the function of the following:

On/Off, series, intermediate, bell ringing circuits, etc .

• Fixing the conduits. • Pulling the cable inside the conduit • Circuit breaker selection • Circuit breaker installation • Making sure that the earth is connected • Energizing the circuit and testing circuit

operation


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MAT 181 Code Mathematics-1 Course Title

Prerequisites

4 3 2 1 Semester


3 L

W

1 T

Contact Hours

(Hour/week)

Course Description:

The course contains algebraic expressions, linear equations (three unknowns), matrices and determinants, basic functions and their graphical representations, exponential function, logarithms, and algebra of complex numbers.

General Goal:

The course aims to give the student the topics he needs to understand his specialized subjects. Behavioral Objectives:


• Know the algebraic expressions. • Solve linear equations. • Use matrices and determinants to solve linear equations. • Know the basic functions and its graphical representation. • Know the exponential functions and logarithms. • Know the algebra of the complex numbers.


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Topics • Algebraic expressions. • Linear equations. • Matrices and determinants. • Exponential functions and logarithms. • Basic functions their graphical representations. • Algebra of complex numbers.

References:


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ELT 132 Code Electrical Circuits & Measurements-II Course Title

Electrical Circuits & Measurements–I Prerequisites 4 3 2 1 Semester


2 L

2 W

T

Contact Hours

(Hour/week)

Course Description:

The course explains the basic laws of electromagnetic, the fundamentals of AC circuits, analysis of AC circuits, and the methods of measurements in AC circuits.

General Goal: The aim of the course is teaching the students the basics of the electromagnetic, the

fundamentals of AC circuits, AC circuits analysis, and AC circuits measurements Behavioral Objectives: Studying this course enables the students to understand:

• Basics of electromagnetic. • Electromagnetic Forces. • Self and mutual inductance. • AC circuits laws and analysis. • Different types of impedances connection in AC circuits. • Three phase circuits. • Rectifier circuits. • AC measurements and instruments used for this purpose. • Error in measurements and error analysis. • AC Bridges.


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Topics • Electromagnetic • Fundamentals of AC circuits and its analysis • Three phase circuits • Measurements in AC circuits and instruments used for this purpose • Laboratory experiments

• Electrical Technology, Edward Hughas • Introductory Circuit Analysis, Robert L. Boylestad, 2000 • Principles of Electric circuits, Thomas L. Floyd, 1999 • Fundamentals of Electric Circuits, Charles K. Alexander,

N. O. Sadiaka, 2000 • Electric Circuits, Joseph Edminister, Mahmood Nahoi, 1997

• א א א K K א Kאאאא

References:


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Behavioral Objectives Contents Hrs The student should be able to: • Understand the magnetic

quantities • Calculate the magnetic field

intensity and magnetic flux • Understand the relationship

between magnetic quantities • Study the force acting on

current carrying conductor in a magnetic field

• Understand the self and mutual inductances.

1. Electromagnetic Fundamentals of magnetism

• Basic assumptions • Magnetic field intensity • Magnetic Flux • Relationship between relative and absolute

permeability Fundamentals of electromagnetism

• Force on current carrying conductors • Magnetic field intensity produced by a long

current carrying conductor • Force between two current carrying conductors

Definition of inductance • Self inductance • Mutual inductance

6

• Understand the definitions of

alternating current • Understand the different

connections of impedances. • Apply voltage and current

divider rules. • Know the phase angle

between voltage and current in resistive, inductive, and capacitive impedances.

• Calculate the impedance.

2. Fundamentals of AC circuits and its analysis Alternating current

• Sinusoidal alternating current • Waveform, frequency, and periodic time. • Determination of the instantaneous value. • RMS value of AC voltage and current. • Average value of AC voltage and current.

Resistance, inductive, and capacitive reactance • Resistance in AC circuits • Inductive reactance in AC circuits • Capacitive reactance in AC circuits • Ohm's law in AC circuits • Series connection • Voltage divider rule • Parallel connection • Current divider rule • Series/Parallel connection

10


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Behavioral Objectives Contents Hrs • Calculate the power in case

of resistive, reactive, and capacitive loads

• Understand the relationship between, apparent, active, and reactive powers

• Understand the meaning of power factor

• Know the three phase system • Explain the relationship

between phase and line currents and voltages in case of star and delta connection

• Calculate the power for balanced three phase loads

• Know the elements of rectifying ac currents and their connections to form simple rectifier circuits

Power in AC circuits

• Apparent power • Active power • Reactive power

Three phase circuits • Representation of three phase current

Relationship between line & phase voltages and currents in star and delta connections

• Power in three phase circuits • Circuits for AC / DC conversion

• Identify different measuring

instruments; know the components and construction and its use

• Identify the sources of error, the advantages and disadvantages of these instruments

• Know the applications of these instruments in AC circuits

• Know the bridges used in ac circuits

3. Measurements in AC circuits and instruments used for this purpose Dynamometer Moving iron instruments Moving coil instruments Wattmeter

• Using correction coil in wattmeter • Measuring the power in three phase circuits • Measuring the reactive power

Kilowatt hour meter Power factor meter Frequency meter Pressure meter Speed meter Thermometer Instruments transformers

• Current transformers • Voltage transformers

Electrical Bridges • Maxwell bridge

4


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Behavioral Objectives Contents Hrs The student should be able to: • Measure the AC circuit

elements • Recognize and use the

Oscilloscope • Understand the relationship

between the AC circuit elements and the frequency

• Know how to measure the coil resistance and self inductance, using Maxwell's bridge.

First: Impedance Measurements

1. Measuring the AC circuit elements (Resistance, inductive and capacitive reactance) using function generator

• Drawing the characteristic curves for these elements with frequency

2. Measuring the AC circuit elements (Resistance, and self inductance) using Maxwell’s bridge and oscilloscope and explain the difference between Wheatstone and Maxwell bridges

6

• Measure the active power

using the wattmeter • Measure the active power

using voltmeter and ammeter • Understand the error in

measurements • Measure the power factor

• Measure the power using

three ammeters • Measure the power using

three voltmeters • Draw the voltage pharos

diagram and calculate the power factor

Second: AC Power Measurements A. Single Phase Circuits

1. Measuring the active power using the wattmeter for different known loads (resistive & inductive), and comparing it with the calculated power obtained using voltmeter and ammeter readings

2. Measuring the power factor • Measuring the power factor for resistive and

inductive loads • Drawing the relationship between load current

and power factor for different load types (resistive/inductive)

3. Measuring the active power using wattmeter for different loads (resistive/inductive), and comparing it with calculated power obtained using three ammeters and known resistance.

• Drawing the relationship between the error in the two methods and the active power

4. Measuring the active power using wattmeter for different loads (resistive/inductive), and comparing it with calculated power obtained using three voltmeters and known resistance.

• Drawing the relationship between the error in the two methods and the active power

10


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Detailed Curriculum (Practice) Behavioral Objectives Contents Hrs

• Know the balanced loading

and measuring its power

B. Three Phase Circuits

1. Measuring the active power of balanced load supplied from four wire system with different loads (resistive, inductive, and capacitive).

2. Measuring the active power of balanced load supplied from three wire system with different loads (resistive, inductive, and capacitive)

• Use the oscilloscope • Measure the DC voltage

using oscilloscope • Measure the AC voltage

using oscilloscope • Calculate the peak, rms,

values of the voltage • Calculate the frequency and

the periodic time • Identify the waveform of

both voltage and current and measure the phase difference between them

Third: The Oscilloscope

1. Measuring the DC voltage using the oscilloscope 2. Measuring the AC voltage using the oscilloscope • Draw the voltage waveform at different

frequencies • Obtain the peak and RMS values of the voltage • Compare the obtained values with the measured

values using voltmeter 3. Measuring the periodic time and frequency for

different waveforms • Draw the waveform for each case • Obtain the periodic time and frequency 4. Measuring the phase shift using the oscilloscope • Draw the voltage waveform for different cases and

obtain the phase angle

4


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MAT 222 Code Mathematics-II Course Title

Mathematics-I Prerequisites

4 3 2 1 Semester


2 L

W

1 T

Contact Hours

(Hour/week)

Course Description:

The course contains: Differentiation, integration, and their applications. It also contains an introduction to differential equations.

General Goal:

The course aims to give the student the topics he needs to understand his specialized subjects. Behavioral Objectives:


• Understand differentiation and its applications. • Understand integration and its applications. • Know how to solve differential equations.


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Topics • Basics of differentiation. • Application of differentiation. • Limited and unlimited integration. • Application of integration. • Introduction differential equations.

References:


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ELT 142 Code DC Machines &Transformers Course Title

Electric Circuits & Measurements-I Prerequisites

4 3 2 1 Semester


2 L

2 W

T

Contact Hours

(Hour/week)

Course Description:

This course covers construction, principles of

operation, classification, equivalent circuits, parameters evaluation, characteristics, testing and applications of DC machines and transformers.

General Goal:

The course aims to give students basic knowledge of construction, theory, performance analysis, and applications of DC machines and transformers. The course also contains practical part in which the students learn how to measure the machine parameters and performance over the working range. Behavioral Objectives:


• Describe the components and construction of DC machines and transformers. • Describe the types and characteristics of DC machines and transformers. • Explain the methods of controlling the generated voltage of DC generators. • Describe the methods of starting, speed control, and reversing the direction of rotation

of DC motors. • Describe the equivalent circuit parameters of transformers. • Distinguish three phase transformer connections. • Name the conditions of parallel operation of transformers.


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Topics • Magnetic circuits. • DC generators. • DC motors. • Single phase transformers. • Three phase transformers. • Laboratory experiments.

• Electrical Technology, Edward Hughes, ISBN: 0-07-02134-5. • Electric Machines G. R. Slemon and A. Straughan, Eddison-

Weslley, 1980. • Electrical Machines and Transformers-Principles and

applications, P. F. Ryff, D. Platnick, and J. A. Karnas, Printice Hall.

• Electric Machinery, M. S. Sarma, West Publishing Company, 1994.

References:


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Behavioral Objectives Contents Hrs The student should be able to: • Explain the relations between

magnetic quantities. • Describes simple magnetic circuits

and calculate magnetic quantities.

1-Magnetic circuits • Review of magnetic circuits: Concept of

magnetic circuits, reluctance, mmf, and flux.

• Analogy between electric and magnetic circuits.

4

• Describe the construction and

principles of operation of dc generators.

• Explain the dependence of generated voltage on the excitation current and speed of rotation.

• Deduce the EMF equation. • Distinguish between the different

types dc generators. • Differentiate between short and

long shunt, and between differentially or cumulatively compounded generators.

• Define the critical resistance. • Calculate the losses and efficiency.

2-DC Generators • Construction and theory of operation of

dc generators. • EMF equation. • Methods of excitation: Separately

excited, series, shunt, and compound. • Characteristic curves and voltage

regulation. • Voltage buildup and critical field

resistance. • Losses and efficiency. • Applications.

6

• Explain the working principles of

dc motors. • Deduce the torque equation. • Distinguish between the different

type's dc motors and draw schematic diagrams.

• Describe the methods of reversing and speed control.

• Describe the methods of starting. • Calculate the efficiency.

3-DC Motors • Theory of operation of dc motors. • Back EMF, and torque equation. • Torque / speed curves according to the

method of excitation. • Speed regulation. • Methods of starting. • Methods of speed control. • Losses and efficiency. • Applications.

6


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Behavioral Objectives Contents Hrs The student should be able to: • Describe the construction and

working principles of single phase transformers.

• Explain the properties of ideal transformers.

• Deduce the EMF equation and transformation ratios.

• Draw the equivalent circuit of the real transformer.

• Refer the parameters to either side of the transformer.

• Draw the phasor diagram. • Describe the open and short circuit

test for the purpose of parameters determination.

• Determine the iron and copper losses and calculate the efficiency.

• Describe the auto transformers.

4-Single phase transformers • Constructional features, types, and

theory of operation of transformers. • The ideal transformer. • EMF equation and transformation ratio. • Equivalent circuit and phasor diagram. • The equivalent circuit referred to either

the primary or secondary winding. • No-load and short-circuit tests. • Load test. • Determination of transformer

parameters. • Losses and efficiency. • Auto-transformers.

8

• Describe the classifications of three

phase transformers according to the method of connections.

• Name the conditions for parallel operation of 3-phase transformers.

• Name the applications of three phase transformers.

4-Threee phase transformers • Three phase transformer connections. • Parallel operation of transformers. • Transformation ratio for the different

connections of three phase transformers.

4


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The student should be able to: • Build up the measuring circuits for

the various types of dc generators. • Put the circuits into operation,

measures the characteristic values, plot the curves, and discus the results.

• Explain the conditions for buildup

voltage of self-excited generators. • Define the critical resistance. • Find the voltage regulation. • Distinguish between the

characteristics of differentially and cumulatively compound generators.

1-DC generators experiments: • Separately excited generators

o No load characteristics (The relation between generated EMF and field current at different speeds).

o Load characteristics (The relation between terminal voltage and load current).

• Shunt generators

o No load characteristics. o Load characteristics.

• Compound generators

o Load characteristics for both differentially and cumulatively compound generators.

10

• Build up the measuring circuits for

the various types of dc motors. • Put the circuits into operation,

measures the characteristic values, plot the curves, and discus the results.

• Describe the toque speed curve for the different types of dc motors.

• Explain the reason for loading series motors during starting.

• Explain the importance of connecting the field circuit before starting of dc motors.

• Explain the danger of disconnecting the field circuit during normal operations.

2-DC motors experiments: • Load characteristics of shunt motors. • Load characteristics of series motors. • Load characteristics of both

differentially and cumulatively compound motors.

10


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Behavioral Objectives Contents Hrs The student should be able to: • Build up the necessary circuits to

carry on the experiments. • Put the circuits into operation take

the measurements and discus the results.

• Calculate equivalent circuit parameters and efficiency.

• Explain the reason for the variation of the terminal voltage with load.

• Calculate voltage regulation. • Name the conditions of parallel

connections of single and three phase transformers.

3-Transformers experiments: • No-load and short-circuit tests • Load test • Parallel connection of single phase

transformers. • Parallel connection of three phase

transformers.

8


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ELT 133 Code Technical Electrical Drawing Course Title

Prerequisites

4 3 2 1 Semester


L

2 W

T

Contact Hours

(Hour/week)

Course Description:

The course describes the electrical and electronic symbols and the wiring diagrams for residential and industrial installations.

The course also includes the connection diagrams of control and protection circuits. Computers programs may be used to draw such circuits and diagrams.

General Goal:

The course aims to introduce to students the basics of technical electrical drawing to enable them to read layouts of electrical installations, and control and protection circuit diagrams. Behavioral Objectives:


• Know the electrical and electronic symbols. • Know the classifications of electrical circuits and layouts. • Read electrical circuits and installations layouts. • Read and draw control and protection circuits.


- 34 -

Topics • Elements and Symbols of Electrical Circuits. • Single Line and Execution Diagrams for Domestic Installations. • Single Line and Execution Diagrams for Industrial Installations and its

distribution networks. • Connection Diagrams for Electrical Machines and Equipment. • Connection Diagrams for the Methods of Starting and Speed Control of

Electrical Motors. • Layouts of Power System Networks and its Protection Schemes.

References:


- 35 -


Behavioral Objectives Contents Hrs The student should be able to: • Know the electrical and electronic

symbols. • Draw the electrical and electronic

symbols.

1- Elements and symbols of electrical

circuits: • Symbols of the basic elements.

Voltage and current sources, resistors, inductors, capacitors, switches, and measuring instruments. • Symbols of power electronic elements:

Diodes, transistors, diac, thyistors, triac MOSFET,.etc. • Symbols of control and protection

circuit elements Contactors, relays, circuit breakers, timers, etc. • Electrical machines symbols:

DC & AC machines and transformers.

8

• Draw single line and execution

diagrams for domestic installations.

2-Single line and execution diagrams for domestic installations: • Lightening and equipment installation

diagrams. • Domestic distribution boards.

4

• Draw single line and execution

diagrams of industrial installations.

3- Single line and execution diagrams for industrial installations and its distribution networks: • Layouts of industrial feeding networks. • Industrial distribution boards.

4


- 36 -


Behavioral Objectives Contents Hrs The student should be able to: • Draw the equivalent circuits for

the different types of dc machines.

• Draw the equivalent circuits for the different types of three phase synchronous and asynchronous machines.

4- Connection diagrams for electrical machines and equipment: • DC machines • Three-phase machines o Induction motors. o Synchronous generators.

4

• Draw the circuit diagram for the

different methods of starting of dc and ac machines.

• Draw the circuit diagram for the different methods of speed control of dc and ac machines.

5- Connection diagrams for the methods of starting and speed control of electrical motors: • Starting and speed control circuits of dc

motors. • Starting and speed control circuits of three-

phase induction motors.

4

• Draw single line diagrams for

electrical networks. • Draw the wiring diagrams for

the protection circuits for the elements of an electrical network.

6- Layouts of power system networks and its protection schemes. • Single line diagram for electrical networks. • Generators protection circuits. • Transformers protection circuits. • Transmission lines protection circuits.

4


- 37 -


ELT 143 Code Single phase machine repair and rewinding &Electrical Protection W/SCourse Title

Prerequisites

4 3 2 1 Semester


L

6 W

T

Contact Hours

(Hour/week)

Course Description:

This course is concerned with three main topics:

First, rewinding of single phase motors. Second, preventive maintenance of electrical machines. Third, safety measures and protection

General Goal:

The course aims to enable students to rewind single phase motors, perform preventive maintenance of electrical machines, select suitable safety measures for possible applications and perform different protection tests Behavioral Objectives:


• Rewind single-phase motors. • Find out and clear faults in single-phase motors. • Identify preventive maintenance procedures for electrical machines • Perform preventive maintenance of electrical machines • Apply protective measures and safety regulations according to standards. • Perform different protection tests.


- 38 -

Topics • Types and construction of single phase motors. • Rewinding of single phase motors. • Rewinding the rotor of universal motors. • Preventive maintenance of electrical machines. • Safety measures and protection.

• Top 2 and 4: Electric Power Engineering Proficiency Course, Deutsche

Gesellschaft Fur Technische Zusammenarbeit (GTZ)

References:


- 39 -


Behavioral Objectives Contents Hrs The student should be able to: • Distinguish different single phase

motors. • Read the name plate data.

1- Types and construction of single phase motors: • Types and construction of single-phase

motors (stator, rotor, main & auxiliary windings, number of poles, etc).

• Name plate data.

6

• Rewind dual voltage single phase

motors (water pump motor). • Rewind two speed single phase

motors (desert air cooler motor).

2- Rewinding of single phase motors: Rewinding dual voltage motors (water pump motor). • Types and construction of the motor. • Working principle. • Read the name plate data. • Dismantle and clean the motor. • Remove the windings. • Note the winding data and the circuit. • Draw the winding diagram. • Identify winding connections for dual

voltages (series / parallel). • Prepare the motor for rewinding

1. Clean the slots. 2. Select insulating materials. 3. Perform the needed insulation.

• Determine the size and form of the coils. • Adjust the rewinding machine and wind

the main and starting coils. • Insert the coils in the slots and connect

the coil terminals. • Bandage the windings. • Assemble the motor. • Connect and test the motor.

Rewinding two speed motors (desert air cooler motor). • Type and construction of the motor. • Working principle. • Read the name plate data.

24


- 40 -


Behavioral Objectives Contents Hrs • Rewind two speed single phase

motors (desert air cooler motor).

• Dismantle and clean the motor. • Remove the windings. • Note the winding data and the circuit. • Draw the winding diagram. • Identify winding connections for the two

speeds. • Prepare the motor for rewinding



the main and starting coils. • Insert the coils in the slots and connect

the coil terminals. • Bandage the windings. • Assemble the motor. • Connect and test the motor.

• Rewind the rotors of universal

motors.

3-Rewinding the rotor of universal motors( Lap / Wave ): • Type and construction of the motor. • Working principle. • Read the name plate data. • Dismantle and clean the motor. • Remove the windings. • Draw the winding diagram. • Identify rotor winding connections

(lap/wave). • Prepare the motor for rewinding



the required number of coils.

18


- 41 -


Behavioral Objectives Contents Hrs

• Insert the coils in the slots and weld the coil terminals to the commutator.

• File and clean the commutator. • Bandage the windings. • Assemble the motor. • Connect and test the motor.

• Perform the preventive

maintenance for electrical machines.

4-Preventive maintenance of electrical machines: • Checking the motor shafts

against bending or wearing. • Checking motor fans and

replacing them if necessary. • Checking motor bearing and

replacing them if necessary. • Checking motor carriers and

replacing them if necessary. • Checking carbon brushes and

replacing them if necessary. • Checking seals and gaskets for

oil leakage and replacing them if necessary.

• Lubricating and oiling electrical machines.

12

• Check the effectiveness of safety

measures according to the regulations (dielectric resistance, loop resistance, ground resistance, low resistance measurements, contact voltage, leakage current, short circuit current, tripping test for ground, fault circuit interrupters).

5-Safety measures and protection: • Tests of safety measures in case of direct

and indirect contact. • Selection of the suitable safety measures

for possible applications. • Protection tests using isolating

transformers. • Earth leakage protection tests.

24


- 42 -


ELT 241 Code Alternating Current Machines Course Title

DC Machines &Transformers Prerequisites

4 3 2 1 Semester


2 L

2 W

T

Contact Hours

(Hour/week)

Course Description:

This course covers construction, principles of

operation, classification, equivalent circuits, parameters determination, characteristics, testing and applications of three phase induction motors and synchronous machines.

General Goal:

The course aims to give students basic knowledge of construction, theory, performance analysis, and applications of three phase induction motors and synchronous machines. The course also contains practical part in which the students learn how to measure the machine parameters and performance over the working range. Behavioral Objectives:


• Describe the components and construction of three phase induction motors. • Explain how the rotating magnetic field is produced in three phase induction motors. • Describe the types and characteristics of three phase induction motors. • Describe the methods of starting, speed control, and reversing the direction of rotation

of three phase induction motors. • Describe the components and construction of synchronous machines. • Explain the working principle of synchronous generators. • Explain how the generated voltage and frequency of synchronous generators can be

adjusted. • Name the conditions of parallel operations of alternators. • Describe the methods of synchronizing alternators with infinite system. • Explain how are synchronous motors used as synchronous condensers in power

systems.


- 43 -

Topics • Three phase induction motors. • Three phase synchronous generators. • Synchronous motors. • Laboratory experiments.

• Electrical Technology, Edward Hughes, ISBN: 0-07-02134-5. • Electric Machines G. R. Slemon and A. Straughan, Eddison-

Weslley, 1980. • Electrical Machines and Transformers-Principles and

applications, P. F. Ryff, D. Platnick, and J. A. Karnas, Printice Hall.


References:


- 44 -


Behavioral Objectives Contents Hrs The student should be able to: • Describe the construction and

theory of operation of polyphase induction motors.

• Distinguish between wound and squirrel cage rotors.

• Describe the production of rotating magnetic field and how is the torque developed.

• Describe the torque speed characteristic and factors affecting the shape of the curve.

• Describe starting methods. • Describe methods of speed control

and reversing direction of rotation. • Name the applications of three

phase induction motors.

1-Three phase induction motors • Construction and theory of operation of

polyphase induction motors. • Types of rotors. • Production of rotating magnetic field. • Synchronous speed, rotor speed, and

slip. • Equivalent circuit. • Performance calculations. • Losses and efficiency. • Methods of starting, speed control, and

reversing the direction of rotation. • Applications.

14


theory of operation of synchronous generators.

• Distinguish between cylindrical and salient pole machines.

• Sketch the equivalent circuit and draw the phasor diagram.

• Determine synchronous impedance.• Explain the control of generated

voltage and frequency. • Describe synchronization process

between two alternators.

2-Synchronous generators • Constructional features of synchronous

machines. a- Cylindrical rotor machines (Turbo alternators). b- Salient pole machines. • Armature winding and EMF equation. • Equivalent circuit and synchronous

impedance. • Voltage regulation. • Phasor diagram. • Power and power angle. • Control of voltage and frequency. • Conditions for parallel operation. • Synchronization process and parallel

operation of alternators.

10


- 45 -


Behavioral Objectives Contents Hrs The student should be able to: • Explain the working principles of

synchronous motors. • Describe starting methods of

synchronous motors. • Describe the operation of

synchronous motors as synchronous condensers.

3-Synchronous motors • Theory of operation. • Methods of starting. • Applications of synchronous motors:

The synchronous condenser and power factor correction.

• V-curves.

4


- 46 -


Behavioral Objectives Contents Hrs The student should be able to: • Build up the necessary circuits for

measurements. • Determine the equivalent circuit

parameters using the results obtained from the no-load and locked rotor tests.

• Describe the characteristic curves of the motor and the factors affecting them.

• Describe the different methods of

starting • Name the advantages and

disadvantages of each method. • Describe the different methods of

speed control and name the advantages and disadvantages of each method.

1-Three phase induction motors: • Determination of the equivalent circuit

parameters o No load test. o Locked rotor test (short circuit test).

• Load test: Draw the characteristic curves

o Torque / Speed curve. o Efficiency / Load current curve. o Power factor / Load current curve.

• Methods of starting

o Direct starting. o Auto-transformer starting. o Star / Delta starting. o Starting using rotor resistance.

• Methods of speed control

o Control by varying supply voltage. o Control using 3-phase rotor resistance

with the wound rotor.

18

• Determine the synchronous

impedance using the results of the no-load and short circuit tests.

• Draw the characteristic curve. • Calculate the voltage regulation. • Synchronize two alternators. • Synchronize an alternator with

infinite system.

2-Synchronous generators: • No-load test. • Short circuit test. • Load test. • Synchronization of two alternators or an

alternator with infinite system.

8


- 47 -


Behavioral Objectives Contents Hrs • Explain how the control of the

motor power factor can be achieved by varying the field current.

• Describe the operation of the motor as a synchronous condenser.

2-Synchronous motors: • Determination of the V-curves.

2


- 48 -


ELT 231 Code Programmable Control Technology Course Title

Electrical Circuits & Measurements-II (ELT 132) Prerequisites 4 3 2 1 Semester


2 L

2 W

T

Contact Hours

(Hour/week)

Course Description:

This course presents applied and experimental study for the use of programmable logic controller. It also enables the student to draw the control circuits and programs the PLC with needed program for industrial applications.

General Goal: This course aims to teach students the construction of the PLC and the fundamentals of

its operation. It also presents the application of PLC in different industrial areas. Behavioral Objectives: Studying this course enables the students to:

• Understand the control circuits used in industrial applications. • Recognize the construction of PLC and its fundamentals • Understand the different programming methods • Simulate an industrial process with simple PLC program • Inspect the control circuits, PLC, find out the faults and repair them.


- 49 -

Topics • System of Numbers • Logic Circuits • PLC Construction and Fundamentals of its Operation • PLC Programming (LAD – STL – CSF) • Basic Functions (Timers – Counters – Flip-flop – Shift Registers – Comparators) • Laboratory Applications

• Programmable Logic Controllers, J. W. Wabb and R. A. Reis, 1994

• Programmable Logic Controllers, C. Simpson, 1993 • Programmable Logic Controller and their Engineering

Applications, A. Crispin, 1990 • The PLC workbook, Clement Jewery, 1993

سلسلة الرضا للمعلومات– للمهندس عيد شحاذة هاللةأجهزة تحكم قابلة للبرمجة •

References:


- 50 -


Behavioral Objectives Contents Hrs The student should be able to: • Understand the different

systems of numbers • Transforming from system to

others • Use different systems for

simple math. operations

1. System of Numbers

• Decimal System • Binary System • Hexadecimal System

4

• Deduce the truth table • Write the logic expressions • Simplify different logic

expressions

2. Logic Circuits

• Logic gates (AND, OR, NOT, NAND, and NOR)

• Logic expressions and its representation using logic gates

• Representing control circuits using logic expressions and logic gates.

٦


PLC • Recognize the importance of

PLC in industry

3. PLC Construction and Fundamentals of its Operation

• PLC construction • Advantages of using PLC in industry

2

• Program the PLC with

different methods for practical control circuits

4. PLC Programming

• Ladder (LAD) • Control System Flowchart (CSF) • Statement List (STL)

6


- 51 -



The student should be able to: • Write the PLC program using

basic functions such as Timers, counters, Flip flops, Shift registers, and jump function.

4. Basic Functions

• Timers • Counters • Flip-flops • Shift register • Comparators • Jump function

6

• Write the PLC programs for

different industrial applications..

5. Practical Implementation

• Operating the three phase Induction Motor (IM) from two different locations.

• Fast and slow reversing the direction for three phase IM

• Starting slip ring IM using starting resistances • Starting delta connected IM using star/delta switch • Traffic control


- 52 -



• Special applications for PLC programming fundamentals

6

• Building light control using PLC.2 • Speed control of IM and direction reversing 4 • Staring IM using star/delta switch with

possibility of reversing the direction of rotation 2

• Operating the three phase IM with two speeds (Dalender) 2

• Speed control of wound rotor IM using starting resistances 2

• Temperature control 2 • Traffic signal application 2 • Stepper motor application 2 • Washing machine application 2

The student should be able to: • Understand the representation

of logic gates using PLC • Understand the representation

of logic circuits using PLC • Develop PLC program using

LAD, CSF, and STL • Understand and represent the

basic functions such as Timers, Counters, using PLC

• Draw the control circuits for different industrial processes.

• Implement different control circuits used in industry using PLC such as starting, washing machine

1. Motor speed control 2. Motor starting 3. Washing machine 4. Left 5. Traffic signal

• Left Application 2


- 53 -


ELT 242 Code Power Electronics Course Title

Electrical Circuits & Measurements-II (ELT 132) Prerequisites 4 3 2 1 Semester


2 L

2 W

T

Contact Hours

(Hour/week)

Course Description:

This course presents the study of the performance and the characteristics of the power electronics elements. It also presents the use of these elements in different circuits as a mean of converting the power from AC to DC and the other way round. The course also shows how to control the voltage and frequency of the source.

General Goal: This course aims to teach students about power electronic elements, their characteristics,

how to operate and use these elements in electrical power and machine circuits. These circuits include rectifiers, controlled rectifiers, DC choppers, AC voltage controllers, and inverters. Behavioral Objectives: Studying this course enables the students to:

• Know the characteristics of power electronic elements. • Use and electric circuits using power electronic elements • Understand the application of different power electronic circuits in industry • Understand protection circuits needed for power electronic circuits • Inspect the power electronic circuits and find out the faults and repair them.


- 54 -

Topics • Semiconductors used in electrical power circuits • Rectifier Circuits • Controlled Rectifier Circuits • DC Chopper Circuits • AC Voltage Controller Circuits • Inverter Circuits

• An Introduction to Power Electronics, B. M. Bird, K. G.

King, D. A. G. Pedder, John Wiley & sons, 1993 • Modern Power Electronics, B. K. Rose, IEEE Press

Publication , 1992 • Power Electronics: Circuits, Devices and applications,

M. H. Rashid, Prentice Hall, 1994 ISBN:81-203-0869-7

• Power Electronic: Converters, Applications, and Design Ned Mohan, T. M. undeland, W. T. Robbins, Jon Wiley & sons, 1994

•

References:


- 55 -


Behavioral Objectives Contents Hrs The student should be able to: • Describe the characteristics

and performance of different semiconductor devices.

• Describe the firing methods and protections of different semiconductor devices.

1. Semiconductors used in electrical power circuits

• PN junction • Silicon rectifier • Application of power diode. • Types of silicon controlled rectifier (SCR, GTO,

triac, etc). • Methods of firing SCR and its protection • Power transistor, MOSFET, IGBT. • Operation of power transistor and its protection.

6

• Calculate the average voltage

and current in rectifier circuits.

• Compare the characteristics of single phase and three phase circuits.

2. Rectifier circuits

• Single-phase rectifier circuits with resistive load.

• Smoothing and filter circuits • Three phase rectifier circuits with resistive

load. • Applications

٤

• Calculate the average voltage

and current in rectifier circuits.

• Compare the characteristics of single phase and three phase circuits.

• Describe the effect of inductive load on commutation process.

3. Controlled rectifier circuits

• Single phase controlled rectifier circuit with

resistive and inductive load • Effect of inductive load on commutation process in

single phase controlled rectifier circuits. • Effect of changing the firing angle on the voltage • Three phase controlled rectifier circuits with

resistive loads. • Applications.

6


- 56 -



The student should be able to: • Describe the principle of

operation of DC chopper circuit.

• Calculate the average output voltage

4. DC Chopper circuits

• Principle of operation of DC chopper. • Transistorized DC chopper. 4

• Describe the principle of

operation of single-phase AC voltage controller.

• Compare the operation of single-phase AC voltage controller in case of resistive and inductive loads.

5. AC Voltage controller circuits

• Principle of operation of phase control. • Single-phase AC voltage controller with resistive

and inductive load. • Applications.

4


• Explain how to control the

output voltage and frequency.

6. Inverter Circuits

• Principle of operation. • Single-phase inverter circuits. • Three phase inverter circuits.

4


- 57 -


Behavioral Objectives Contents Hrs The student should be able to: • Read the technical

specification of power electronic devices

• Obtain experimentally the characteristics of power diode and SCR.

1. Semiconductors used in electrical power circuits

• Reading the technical specification of power electronic devices.

• Measuring the power diode characteristics. • Measuring the SCR characteristics.

6

• Use PSPICE to represent and

analyze uncontrolled rectifier circuits.

• Connect uncontrolled rectifier circuits.

• Obtain experimentally the characteristics of rectifier circuits with resistive load.

2. Rectifier circuits

• Single phase rectifier circuits with resistive load.

• Three phase rectifier circuits with resistive load.

• Using capacitors to smooth the rectified voltage.

6

• Use PSPICE to represent and

analyze controlled rectifier circuits.

• Connect and test SCR firing circuit.

• Obtain experimentally the characteristics of controlled rectifier circuits with resistive load.

3. Controlled rectifier circuits

• Components and operation of firing circuits • Single phase controlled rectifier circuit with

resistive and inductive load • Effect of inductive load on commutation process in

single phase controlled rectifier circuits. • Three phase controlled rectifier circuits with

resistive loads.

12

• Control the output voltage by

changing the phase angle.

4. AC Voltage Controller Circuits

• Controlling the AC voltage by changing the phase

angle

4


- 58 -


ELT 232 Code Industrial safety Course Title

Prerequisites

4 3 2 1 Semester


1 L

W

T

Contact Hours

(Hour/week)

Course Description:

The course presents general rules for safety of people and equipment. It describes the effects electricity on human body. It also discusses fire alarm systems.

General Goal:

The course aims to teach students the danger of electricity and its effect on human body. It also presents the general safety rules to avoid body injuries. In addition, the course describes fire alarm system. Behavioral Objectives:


• Describe general regulation for safety of electrical and mechanical Equipment. • Describe types of body injuries resulting from electrical current. • Present how to rescue a person who suffered an electric shock. • Describe fire alarm systems. • Name buildings which should have fire alarm systems. • Describe industrial safety guidelines.


- 59 -

Topics • General regulation for safety of equipment. • Danger of electricity on human body and how to rescue a person who

suffered an electric shock • Injuries resulting from passing electric current through human body. • Fire alarm system. • Industrial safety guidelines.

References:


- 60 -


Behavioral Objectives Contents Hrs The student should be able to: • Describe General regulation for

safety of electrical and mechanical equipment.

1- General regulations for safety of equipment:

1

• Describe the reasons of electric

shocks. • Mention the types of electric

injuries. • Mention the procedure of rescuing

the injured person.

2- Danger of electricity on human body and how to rescue: • Reasons of electric shocks. • Electric current in human body.

a Electrical resistance of human body. b Intensity of electric current passing

through human body c Effect of voltage d Effect of frequency e Effect of passing the electric current in

human body f The electric current path way through

the human body • Type of electric injuries.

a Electric shocks b Electric burns

• Rescuing the injured person. a Freeing the injured person. b Artificial breathing c Treatment of burns

5


- 61 -


Behavioral Objectives Contents Hrs The student should be able to: • Mention the cases of harming

the human body by electric current.

3- Injuries resulting from passing electric current through human body: • Cases of harming human body by electric

current. a Touching two active lines. b Touching one active line. c Accidentally touching one voltage terminal d Touching and step voltages.

3

• Describe the components of fire

alarm systems. • Name buildings which should

be provided with fire alarm system.

4- Fire alarm systems: • Components of fire alarm systems. a Control unit. b Fire detectors. c Thermal detectors d Smoke detectors e Fire alarms • Building should be provided with fire alarm

system. • Manually operated units. • Installation of fire alarm system

3

• Apply safety rules and

regulations.

5- Industrial safety guidelines: • Limiting unsafe behavior. • Personal safety equipment a Eyes protection. b Ears protection. c Protecting suits.

2


- 62 -


ELT 243 Code Three Phase Motors Control W/S Course Title

AC Machines Prerequisites

4 3 2 1 Semester


0 L

4 W

T

Contact Hours

(Hour/week)

Course Description:

This course describes the operation and control

circuits used with three phase induction motors. It also presents the methods of fault finding and repair

General Goal:

The course aims to teach the student the circuit needed to operate and control three phase induction motors. These circuits include operation, starting, speed control, and reversing the direction of rotation. This course enables the student to find out and clear faults in these circuits. Behavioral Objectives:


• Describe the components and construction of three phase induction motors. • Read and connect the operation circuits of three phase induction motors. • Read and connect the control circuits of three phase induction motors. • Find out and clear the faults.


- 63 -

Topics • Construction of three phase induction motors. • Three phase induction motor operation and control panel assembly. • Operation circuits of three phase induction motor. • Starting circuits of three phase induction motor. • Reversing of three phase induction motor circuits • Faultfinding and clearance in control circuits of three phase induction

motor. • Top 2 and 4: Electric Power Engineering Proficiency Course, Deutsche

Gesellschaft Fur Technische Zusammenarbeit (GTZ)

References:


- 64 -


The student should be able to: • Distinguish between the different

types of three phase induction motors.

• Describe the types of switches,

relays, and contactors.

1-Construction of three phase induction motors: • Components and types of three phase

induction motor (stator, rotor, poles, etc.)

• Reading the name plate data of the machine

• Types of operation, control and protection switches contactors and relays.

4

• Apply the regulations and standards

for assembling and putting into operation the control panels.

• Read the layouts of the control panel.

• Fix the operation and control elements in the panel.

• Install the power circuit needed.

2-Three phase induction motor operation and control panel assembly: • Rules and regulations for installation of

operation and control panels. • Layouts of the control panel. • Fixing and installation of operation

control elements in the panel. • Installing the power circuit needed for

the panel

8

• Connect and operate different

operation circuits of induction motor.

3-Three phase induction motor operation circuits: • Operating induction motor through

magnetic contactor. • Operating induction motor at two speeds

(Dhalender) using magnetic contactor and timer

4


- 65 -


The student should be able to: • Connect and operate different types

of starting circuits of induction motor.

4-Starting of three phase induction motor: • Direct starting. • Starting using star delta switch. • Starting using auto transformers. • Starting wound rotor motors using

starting rotor resistance.

4

• Connect and operate different types

of reversing circuits of induction motor.

5-Reversing the direction of rotation of three phase induction motor: • Slow reversing circuit (with motor stop).• Fast reversing circuit (without stop). • Reversing direction of rotation using

limit switch • Reversing direction of rotation in

conjunction with star delta switch.

8


function of each element in the control circuit.

• Check the current flow in the circuit

• Find out and clear the fault in the circuit

• Carry out run tests and check the performance of the circuit

6-Fault finding and clearance in control circuits of three phase induction motor: • Function of each element of the control

circuit. • Following the current path in the control

circuit from the source up to the motor • Fault finding and clearance in operation

and control circuit • Carrying out run tests after fault

clearance

4


- 66 -


ELT 244 Code Electronic Control of Electrical Machines Course Title

ELT 241 + ELT 242 Prerequisites 4 3 2 1 Semester


2 L

2 W

T

Contact Hours

(Hour/week)

Course Description:

The course contains a description of using power electronic circuits for operation and control of different electrical motors (DC & AC) at different operating conditions.

General Goal:

The aim of the course is teaching students the fundamentals of electronic control of DC and AC Motors using power electronic circuits. This course also aims to enable students to operate and control the motors at different operating conditions Behavioral Objectives: Studying this course enables students to:

• Operate electrical motors using power electronic circuits • Explain the characteristics of different electrical motors when operated by power

electronic circuits • Control the speed of the motor and the direction of rotation using power electronic

circuits • Start and brake electrical motor using power electronic circuits


- 67 -

Topics • Review the characteristics of electric motor used in industry • Review the power electronic circuits used in industry • Control of DC motors using controlled rectifiers • Control of DC motors using DC choppers • Control of three phase induction motors • Control of three phase synchronous motors

• Power Electronics: Circuits, Devices and applications,

M. H. Rashid, Prentice Hall, 1994 ISBN:81-203-0869-7

• Power Electronics and Motor Control, W. Shepherd, L. M. Hulley, and D. T. W. Liang, Cambridge, 1995

• Electric Motor and Drives: Fundamentals, Types and Applications, Austin Hughes, Heinemann Newnes, 1990

References:


- 68 -


Behavioral Objectives Contents Hrs The student should be able to: • Understand the performance

and the characteristics of electrical motors used in industry

1. Review the characteristics of electric motor used in industry

• Separately excited DC motor • Series and parallel DC motor • Three phase induction motor • Synchronous motor

4

• Determine the average values

of the voltages and current in controlled rectifier circuits

• Determine the RMS values of the voltages and current in AC voltage controller circuits

• Explain the performance of basic inverter circuits

2. Review the power electronic circuits used in industry

• Controlled rectifier circuits • DC choppers • AC Voltage controllers • Inverters

4

• Select the proper converter

circuit needed for the motor and operating conditions

3. Control of DC motors using controlled rectifiers

• Single phase semi-converter drives • Single phase full converter drives • Three phase half wave converter drives • Three phase semi-converter drives • Three phase full converter drives

6

• Operate and control DC

motors using DC chopper • Apply different types of

braking to DC motors using DC chopper

4. Control of DC motors using DC choppers

• Speed control of DC motor using DC chopper • Braking of DC motor using DC chopper

A. Regenerative braking B. Dynamic Braking C. Combined regenerative and dynamic braking

• Two quadrant chopper drives • Four quadrant chopper drives

4


- 69 -


Behavioral Objectives Contents Hrs The student should be able to: • Explain and compare

different methods of speed control of induction motor.

5. Control of three phase induction motor

• Control of three phase induction motor using AC voltage controllers

• Control of three phase induction motor using inverters

• Slip power recovery control of three phase induction motor

• Applications

4

• Explain and compare

different methods of speed control of synchronous motor.

6. Control of three phase synchronous motor

• Control using frequency • Control using inverters

4


- 70 -


Behavioral Objectives Contents Hrs The student should be able to: • Connect different control

circuits and recognize the symbols of different power electronic elements used

• Select the proper converter circuit needed for the motor and operating conditions

• Distinguish between different types of controlled rectifier circuits and explain the advantages and disadvantages of each type.

• Understand the relation between the firing angle and the average voltage to achieve the required speed control.

1. Control of DC motors using controlled rectifiers

• Single phase semi-converter drive • Single phase full converter drive • Dual converter drive • Three phase half wave converter drive • Three phase semi-converter drive • Three phase full converter drive

12

• Operate and control DC

motors using DC chopper • Apply different types of

braking to DC motors using DC chopper

2. Control of DC motors using DC choppers

• Speed control of DC motor using DC chopper • Braking of DC motor using DC chopper

4

• Use AC voltage controllers

and inverters to achieve speed control of induction motor.

• Use AC voltage controllers and inverters to achieve speed control of wound rotor induction motor

3. Control of three phase induction motor

• Control of three phase induction motor using AC voltage controllers

• Control of three phase induction motor using inverters

• Slip power recovery control of three phase induction motor

12


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ELT 233 Code Automatic Control Technology Course Title

Electrical Circuits & Measurements – II (ELT 132) Prerequisites 4 3 2 1 Semester


2 L

2 W

T

Contact Hours

(Hour/week)

Course Description: The course covers, terminology, concepts, and principles of automatic control technology. It gives practical examples and explains the basic definitions of automatic control systems with the aid of the block diagram. In addition, emphasis is on the applications of well-established methods with the aid of examples and computer programs to determine the constants of these controllers. General Goal: The aim of the course is teaching students the fundamentals of automatic control technology that enable them to understand the control system used in industry. This course also enables students to apply some simple control system using ready-made packages and to use computer for this purpose. Behavioral Objectives: Studying this course enables the students to:

• Understand the methods of representing the basic control system. • Explain the main control methods. • Describe the methods of control of electrical machines


- 72 -

Topics • Fundamentals of automatic control • Types of industrial control systems • Characteristics of industrial control systems. • Analyses of control system • Design of closed loop control system

• Modern Control Engineering, K. Ogatta, Prentice Hall,

1994 • Modern Control System, R. C. Dorf, Eddison Wesley,

1990 • Control System Design, C. T. Chen, Saunders College

Publishing, 1993 • Feedback Control System, John Van De Vegta,

Prentice Hall, 1990 • Automatic Control Systems, B. Kuo, Prentice Hall

References:


- 73 -


Behavioral Objectives Contents Hrs The student should be able to: • Understand the importance of

automatic control in different fields

• Distinguish between open loop and control loop systems.

• Sketch the block diagram and perform simple block diagram simplifications.

1. Fundamentals of automatic control

• Importance of automatic control (practical examples)

• Applications of automatic control in different fields

• Process representation using block diagram or power flow graph

• Basic definitions of control system (input, output, error, and reference)

• Open loop and closed loop system: Concepts, advantages, and disadvantages

• Simplification of block diagram

6

• Distinguish between analog

and digital controllers • Describe process control and

process controllers • Describe process control and

process controllers

2. Types of industrial control systems

• Definition of analog and digital control • Definition of process control • Servomechanism

2

• Describe the physical

elements of each part of the control system

• Explain the role of each element in the system

3. Characteristics of industrial control systems

• Basic components of industrial systems • Final Control elements

D. Control valves E. Electric motors

• Sensors and transducers • Controllers • Measurements in control technology

A. Position, displacement, velocity, acceleration. B. Force, temperature, flow rate, pressure, and level

6


- 74 -


Behavioral Objectives Contents Hrs The student should be able to: • Obtain the transfer function

of the control system. • Define the following:

A. Steady state gain B. Settling time C. Damping ratio D. Maximum overshoot

• Obtain the above characteristics using

SIMULINK

4. Analyses of control system

• Introduction to Lap lace transformation using tables

• System transfer function • Time domain analysis by step response

open loop system • Time domain characteristics (gain, lag, settling

time, etc.) • Use of SIMULINK to illustrate the concepts

introduced above

10

• Define desired controller

characteristics. • Explain the role of each

elements of P, PI, and PID controllers in closed loop system settings

5. Design of closed loop control system

• Define the closed loop desired characteristics of the controlled system

• Explain the role of each elements of P, PI, and PID controllers in closed loop system settings

• Use of SIMULINK to illustrate the concepts introduced above

4


- 75 -


Behavioral Objectives Contents Hrs The student should be able to: • Explain the importance of

automatic control in different fields

• Distinguish and describe the use of equipment and devices such as:

A. Final control elements B. Sensors and transducers C. Controllers and measuring

devices

1. Introduction to equipment and devices:

2

• Determine the static and

dynamic characteristic of open loop industrial system (thermal, dc motor, level) by means of time response

2. Analysis of open loop industrial system response

• Step response analysis of thermal system • Step response analysis of dc motor • Step response analysis of level control

system

6

• Determine the static and

dynamic characteristic of open loop industrial system such as steady state error, settling time using (SIMULINK)

3. Analysis of open loop industrial system response (SIMULINK)

• Step response analysis of thermal system • Step response analysis of dc motor • Step response analysis of level control

system

6


- 76 -


The student should be able to: • Determine the static and

dynamic characteristic of closed loop industrial system such as steady state error, settling time through practical examples

• Compare the performance of the closed loop system to that of open loop system

• Make sure that using the PI controller eliminates the steady state error

4. Analysis of closed loop industrial system response

• Closed loop control of thermal system A. Influence of proportional controller gain

on the steady state error and settling time. B. Zero steady state error using PI controller

• Closed loop control of a dc motor system A. Influence of proportional controller gain

on the steady state error and settling time. B. Zero steady state error using PI controller C. Effect of adding d type element to the PI

controller • Closed loop control of thermal system

A. Influence of proportional controller gain on the steady state error and settling time

B. Zero steady state error using PI controller

14


- 77 -


ELT 245 Code Small Electrical Machines Course Title


4 3 2 1 Semester


2 L

W

T

Contact Hours

(Hour/week)

Course Description:

The course describes a number of small electric machines widely used in practice such as: • Single Phase Induction Motors. • Stepper Motors. • Tacho-Generators. • Servomotors. • Universal and Repulsion Motors. • Synchros.

In addition, the course covers construction features, principles of operation, performance, and application of these machines. General Goal:

The course aims to give the student basic knowledge of theory, performance analysis, and application of small machines in practice. Behavioral Objectives:


• Describe types and construction of single-phase induction motors. • Describe the methods of starting of single-phase induction motors. • Describe how the main and auxiliary windings are wound. • Describe types, construction, and theory of operation of stepper motors. • Describe types, construction, and theory of operation of tacho-generators. • Describe the construction and theory of operation of servomotors. • Describe the construction and theory of operation of the universal and repulsion

motors. • Describe types and construction of synchros. • Describe the different industrial applications of small machines


- 78 -

Topics • Single Phase Induction Motors. • Stepper Motors. • Tacho-Generators. • Servo-Motors. • Universal and Repulsion motors. • Synchros.

• Principles of Electric Machines and Power Electronics, P.C Sen, Jon Wiley & Sons, Inc, 1997.


• Electric Machines: Steady State Theory and Dynamic Performance, A. E. Fitzgeraled, Mc. Graw-Hill, 1992.

References:


- 79 -


Behavioral Objectives Contents Hrs The student should be able to: • Describe the construction of the

different types of single phase induction motors.

• Describe and differentiate between the different methods of starting.

• Understand the theory of forward and backward fields.

• Describe how the torque is produced.

• Draw the equivalent circuit of the single phase induction motor.

• Calculate the performance. • Draw the torque speed

characteristic.

1- Single Phase Induction Motors: • Construction. • Types of single phase induction motors

and methods of starting: a- Split phase motors. b- Capacitor start motors. c- Capacitor run motors. d- Capacitor start capacitor run motors. e- Shaded pole motors. • Forward and backward fields. • Theory of operation. • Equivalent circuit. • Torque speed relation. • Losses and efficiency. • Applications of single phase induction

motors.

8

• Describe and differentiate between

the different types of stepper motors.

• Explain the operation of stepper motors.

• Determine the step • Find the logic tables for full step

forward and backward rotations • Find the logic tables for half step

forward and backward rotations

2- Stepper Motors: • Types of stepper motors: Salient pole

permanent magnet and hybrid. • Construction and theory of operation. • Step calculation. • Logic tables for the control circuit for

both forward and backward rotations. • Applications of stepper motors.

4

• Describe and differentiate between

the different types of tacho-generators

• Understand the reason for the errors in tacho-generator readings.

• Describe how can the errors be minimized.

• Calibrate the tacho-generators.

3- Tacho-Generators: • Types of tacho-generators:

a- DC tacho-generators. b- Induction type tacho-generators. c- Synchronous tacho-generators. • Construction and theory of operation. • Reasons of the errors in the readings of

tacho-generators. • Calibration of tacho-generators.

4


- 80 -


Behavioral Objectives Contents Hrs The student should be able to: • Know requirements in the

design of servomotor. • Name the applications of

servomotors. • Describe the construction and

working principles of ac servomotors.

• Draw the torque speed relation for ac servomotors.

• Describe the construction of dc servomotors.

4- Servo-Motors: • The requirements in the design of servo

motor. • Applications of servomotors. • Construction and theory of operation Drag-

Cup servomotors. • Speed Torque relation of the two-phase

servomotors. • DC servo motors:

a- Printed circuit motors. b- Moving coil motors.

4


working principles of a universal motor

• Describe the construction and working principles of a repulsion motor.

5- Universal and Repulsion motors: • Construction and theory of operation of

universal motors. • Construction and theory of operation of

repulsion motors.

4

• Describe the construction of the

different types of synchros. • Name the applications of

synchros elements.

6-Synchros: • Elements of self synchronous systems:

a- The transmitter. b- The control transformer. c- The control deferential. d- The control receiver. • Applications of synchros.

4


- 81 -


ELT 246 Code Electric Drive Course Title


4 3 2 1 Semester


2 L

W

T

Contact Hours

(Hour/week)

Course Description:

The course covers: The construction and characteristics of the driving motors, selection of the suitable motor starting, braking, speed control, electric traction, and types of loads.

General Goal:

The course aims to give the student an introduction to electric driving systems mechanical quantities, mechanics, characteristics of driving motors and loads, and applications of different electric drives. Behavioral Objectives:


• Describe the types of loads. • Describe types and construction of driving motors. • Describe the characteristics of driving motors. • Name the conditions under which driving motors works. • Explain the effect of loads on the driving systems. • Calculate the run up time of driving systems. • Describe the methods of starting and speed control of the different driving motors. • Describe the methods of electric braking. • Explain how to choose the proper driving motor.


- 82 -

Topics • Fundamentals of mechanics. • Types and characteristics of loads. • Characteristics and properties of driving motors. • DC & AC Motors as driving motors. • Electric traction. • Braking. • Choice of the suitable motors for certain loads.

• Electric Motors and Drives Fundamentals, A. Hughes, Heinemann Newnes, 1990.

• Electric Drives: Concepts and Applications, V. Subrahmanyam, McGraw-Hill, 1990.

Utilization of Electric Power & Electric Traction, G. C. Garg, KHANNA PUBLISHERS DELHI, 1988.

• אאאאK K–א–KKK

• אאאKKאאKא–K

References:


- 83 -


Behavioral Objectives Contents Hrs The student should be able to: • Define the basic relations in

mechanics. • Differentiate between mass and

weight. • Describe the relation between

translational and rotational motions.

1- Fundamentals of mechanics: • Relations between distance, speed, time

and acceleration. • Mass, weight, and inertia. • Translational and rotational motions. • Components of load torque.

2

• Describe load characteristic as a

function of time. • Distinguish continuous and discrete

forms of load. • Determine the stable operating

point. • Calculate the required motor

power. • Calculate the run up time.

2- Types and characteristics of loads: • Nature and classifications of loads. • Characteristics curves of loads. • Determination of the stable operating

point. • Dynamics of driving systems. • Calculation of motor power. • Effect of loads on driving systems. • Starting time.

6

• Name requirements for

construction of drive motors such as protection, temperature and explosion classes.

• Describe the methods of cooling of driving motor.

3- The required characteristics and properties of driving motors: • Characteristics of DC & AC drive

motors. • Shape and construction to cope with

surrounding atmospheres. • Protection of driving motor and methods

of cooling.

4

• Describe the general characteristics

of DC & AC driving motors. • Interpret the characteristic curves

of different kinds of motors and justify with the help of these curves their field of applications.

4- DC &AC motors as driving machines: • General characteristics of driving

motors. • DC motors as driving machines. • AC motors as driving machines.

4


- 84 -


Behavioral Objectives Contents Hrs The student should be able to: • Know the advantages and

disadvantages of electric traction. • Describe the train dynamics. • Calculate the force and power

required for traction. • Describe the types of transportation

services. • Explain the different phases of the

speed time curves in and between cities.

5- Electric traction: • Types of electric traction. • Advantages and disadvantages of

electric traction. • Traction force required on traction

wheels. • Traction power. • Dynamics of train movements. • Types of transportation services. • Speed time curves.

6

• Name the different methods of

electrical braking. • Describe and differentiate between

the methods of electric braking. • Describe the application of electric

braking to DC & AC motors.

6- Electric braking: • Regenerative braking. • Dynamic braking. • Rheostat braking. • Reverse current braking (plugging).

4

• Name criteria for drive motor

selection. • Describe the electrical and

mechanical factors on which the choice of driving motors depend.

7-Choice of the driving motor: • Factors considered in choosing the

proper motor to drive a specific load. • Selection of the suitable drive motor

with the help of load torque curve and torque characteristics of the motor.

2


- 85 -


ELT 247 Code Power Stations and Protection Course Title

ELT 241 Prerequisites 4 3 2 1 Semester


1 L

2 W

1 T

Contact Hours

(Hour/week)

Course Description:

The course describes two main parts; Generating power stations and Protection. The first part introduces the students to the construction of different types of generating power plants. It teaches students how to operate generators and how to control the power flow.

The second part describes the protection methods for different electrical machines. It discusses different faults, relays and circuit breakers. General Goal:

The aim of the course is to teach the student the construction of different types of power plants, operation of power generators, and power flow control. It also gives the student the principles of power system protection such as: components of protection systems, protective relays, circuit breakers, protection schemes and applications Behavioral Objectives: Studying this course enables the students to:

• Describe the types and components of generating stations • Describe the types of turbo-alternators • Explain the function of auxiliaries in power plants • Explain the types of exciters and its functions • Operate power generators • Control the voltage and frequency of the generator • Connect the alternator to the power network • Control the generated power • Describe different types of protective relays and relays selection and testing • Describe different types of circuit breakers • Determine the circuit breakers capacity • Describe different protection schemes


- 86 -

Topics • Types of power plants. • Operation of power generators. • Connecting alternator to the power network. • Control of the generated power. • Principles of power system protection. • Protection of generator. • Protection power transformer. • Protection of electric motor.

• Electrical Machines Devices and Power Systems, 3rd edition

Prentice Hall, 1997 • Electrical Power Systems, J. M. Harison, Prentice Hall, 1996 • Application Guide For Industrial Generator Protection, GEC

Company, 1995 • Transformer Protection Application Guide, Basler Electric

Company, 1996 Application Guide Lines For protection of Industrial Three Phase Motor, GEC Company, 1995

References:


- 87 -


Behavioral Objectives Contents Hrs The student should be able to: • Distinguish between different

types of power stations. • Explain the advantages and

disadvantages of the different types of power station.

• Understand the power flow graph.

1. Types of power plants

• Types of power stations i. Diesel power station

ii. Gas power station iii. Steam power station • Block diagram for different power stations • Power flow

4

• Describe the different types of

alternators. • Vary the voltage and frequency.

2. Operation of power generators

• Review of synchronous generators. • Control of voltage and frequency.

2

• Mention the conditions of

connecting the alternators to in parallel.

• Describe the behavior of the alternators when connected to infinite power system.

3. Connecting alternator to the power network

• Conditions of parallel operation of alternators.

• Behavior of alternators connected to infinite bus bars.

2

• Describe how he can change

active and reactive power in power stations.

4. Control of the generated power

• Control of active and reactive power.

2


- 88 -


Behavioral Objectives Contents Hrs • Justify the importance of

protecting power system elements

• Distinguish between the different types of faults.


voltage and current transformers.

• Describe the usage of voltage and current transformers in protection circuits

• Explain the importance of earthing.

• Describe functioning, construction and application of circuit breakers.

• Define the terms used in protection system.

• Distinguish between different types of protective relays

5. Principles of power system protection

• Importance of power system protection • Faults in electrical machines i. Short circuit.

ii. Open circuit. iii. Over loading. • Voltage and current transformers iv. Construction, rating, accuracy, and field of

applications. • Earthing • Circuit breakers. • Protective relays.

v. Definitions and notations (sensitivity, speed of operation, reliability, main and backup protection, etc)

vi. Types of protective relays and its adjustment vii. Over current relays

viii. Directional relays ix. Distance relays x. Over and under voltage relays

6

• Distinguish between the

different types of generator faults

• Explain the generator protection against different types of faults.

6. Protection of generator • Over load protection • Stator winding protection • Field winding protection • Phase to phase fault protection • Reverse power protection • Over speed protection

4


- 89 -


Behavioral Objectives Contents Hrs • Distinguish between the

different types of transformer winding faults

• Explain the transformer protection against different types of faults.

7. Protection of power transformers • Over load protection • Transformer winding protection against

different faults • Protection using Buchholz relay • Differential protection

4

• Distinguish between the

different types of motor faults • Explain the motor protection

against different types of faults.

8. Protection of electric motors • Over load protection using thermal relays • Locked rotor protection • Unbalanced phases protection • Protection against single phase operation • Protection against earth faults. • Under voltage protection • Protection against short circuit between

phases

4


- 90 -


Behavioral Objectives Contents Hrs The student should be able to: • Describe the components of

power station • Operate, connect the power

station to the power network • disconnect the power station

from the power network

1. Operating power stations 4

• Adjust the active power by

changing mechanical power • Adjust the reactive power by

changing excitation current

2. Control of active and reactive power

2

• Measure the voltage using

potential transformer. • Measure the current using

current transformer

3. Measuring voltage and current using P.T. and C.T.

2

• Describe the different

protection devices and their functions during abnormal operations and short circuits.

4. Protection devices • Fuses • Circuit breakers • Relays

2


functions of static relays used for transmission line protection.

5. Static protection of transmission line

2

• Describe how to protect the

generator windings against ground faults.

6. Protection of generator • Protection against rotor winding ground fault • Protection against stator winding ground fault

2


- 91 -


Behavioral Objectives Contents Hrs • Describe how to protect the

generator in case of symmetrical and unsymmetrical terminal faults.

7. Protection against generator terminal short circuit

2

• Describe how to protect the

generator in case of over load.

8. Protection of generator against over load

2

• Explain deferential protection

of generator.

9. Deferential protection of generator

2

• Explain protection against

reverse power.

10. Reverse power protection

2


- 92 -


ELT 248 Code Three Phase Induction Motor Rewinding & Maintenance W/S Course Title

Prerequisites

4 3 2 1 Semester


L

4 W

T

Contact Hours

(Hour/week)

Course Description:

This course is concerned with maintenance and

rewinding of three phase induction motors.

General Goal:

The course aims to enable students to rewind and perform maintenance of three phase induction motors. Behavioral Objectives:


• Rewind three phase induction motors. • Find out and clear faults in three phase induction motors.


- 93 -

Topics • Rewinding of three- phase induction motors. • Fault finding in three-phase induction motor and clearing them.

• Top 2 and 4: Electric Power Engineering Proficiency Course,

Deutsche Gesellschaft Fur Technische Zusammenarbeit (GTZ)

References:


- 94 -


Behavioral Objectives Contents Hrs The student should be able to:

• Read the nameplate data. • Dismantle and clean the motor. • Remove the windings. • Note the winding data and the circuit. • Draw the winding diagram. • Identify winding connections. • Prepare the motor for rewinding


• Determine the size and form of the coils.

• Adjust the rewinding machine and wind the required number of coils.

• Insert the coils in the slots and connect the coil terminals.

• Bandage the windings. • Assemble the motor. • Connect and test the motor.

1-Rewinding of three phase induction motors:

a) Basics of three phase induction motors rewinding

• Types of winding and determination of coil pitch.

• Selection of the suitable wire size. • Determination of the number of turns per

phase. • Calculation of the number of turns per coil. • Identification of the coil terminals for

internal and external connections.

b) Rewinding of three-phase induction motor with a single coil side per slot.

c) Rewinding of a two speeds motor D/YY

(2&4 poles).

d) Rewinding of a two speeds motor Y/Y (6&4 poles).

e) Rewinding of a three speeds motor D/YY/Y

(8&4&2 poles).

f) Rewinding of a three-phase induction motor with a fractional pitch coils.

44

• Perform trouble shooting in three phase induction motors.

2-Fault finding: • Find out and clear faults in three phase

motors. • Perform final tests after repair.

12


- 95 -



• Perform trouble shooting in three phase induction motors.

2-Fault finding: • Find out and clear faults in three phase

motors. • Perform final tests after repair.

12


- 96 -


ELT 249 Code Programmable Control of Electrical Motors W/S Course Title

ELT 243 + ELT 231 Prerequisites

4 3 2 1 Semester


0 L

4 W

T

Contact Hours

(Hour/week)

Course Description:

This course describes the operation and control

of three phase induction motors using PLC.

General Goal:

The course aims to teach the student how to use the PLC to operate and control the three phase induction motors. Behavioral Objectives:


• Read and connect the operation and control circuits of three phase induction motors. • Represent operation and control circuits using logic expressions and logic circuits. • Use the PLC to operate and control three phase induction motors.


- 97 -

Topics

• Components and Construction of the PLC. • Operation of three-phase induction motor using PLC. • Starting of three-phase induction motor using PLC. • Reversing the direction of rotation of three phase induction motors using

PLC.

• Programmable logic Controllers, D. Frank, Petruzella,

McGraw-Hill. • The PLC workbook, Celement Jewery, 1993.

• K –א

References:


- 98 -


Behavioral Objectives Contents Hrs The student should be able to: • Describe the components and the

construction of the PLC. • State the advantages of using PLC

in industry.

1-Components and Construction of the PLC: • Components of the PLC • Advantages of using PLC in industry

4

• Connect and operate different

operation circuits of induction motor using PLC.

2-Operation of three phase induction motor using PLC: • Operating induction motor through

magnetic contactor. • Operating induction motor at two speeds

(Dhalender) using magnetic contactor and timer.

12


of starting circuits of induction motor using PLC.

3-Starting of three phase induction motor using PLC: • Starting using star delta switch. • Starting using autotransformers. • Starting wound rotor motor using

starting rotor resistance.

12


of reversing circuits of induction motor using PLC.

4-Reversing the direction of rotation of three phase induction motor using PLC: • Slow reversing circuit (with motor stop).• Fast reversing circuit (without stop). • Reversing direction of rotation using

limit switch. • Reversing direction of rotation in

conjunction with star delta switch. • Reversing direction of rotation of

Dhalender motor using PLC.

28

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