Programme Code: EC EC 11 203 Basic Electronics · PDF fileGovernment Polytechnic Mumbai EC 11...

Government Polytechnic Mumbai EC 11 203 Basic Electronics (PBOS Copy)

Prepared by: H. O. D. Electronics

1

Programme Code: EC

Course Code: EC 11 203 Course Title: Basic Electronics

Compulsory / Optional: Compulsory

Teaching Scheme and Credits Examination Scheme

TH TU PR Total TH TS PR OR TW Total

4 -- 2 6 80 (3 Hrs.) 20 25 -- 25 (PA) 150

Rationale:

It is necessary for the students of electronics and related branches to study and apply the basic principles, analyze and troubleshoot simple subsystems. To acquire this level of understanding, the basic knowledge of electronic devices and circuits is essential. This Course is one of the core subjects which is deals with construction, working principle, application of active components.

Objectives:

The students will be able to

Understand principle and terminology of electronics.

Draw symbol and characteristics of electronic devices.

Analyze the characteristics of electronic devices.

Understand the working of basic circuits such as rectifiers, amplifiers etc.

Build and test simple circuit.

Section I

Contents: Hours Marks

1. Semiconductor Theory:

1.1 Classification of component on the basis of energy band theory. Intrinsic and

Extrinsic Semiconductors, majority and minority charge carriers. P-type and N-

type Semiconductors.

1.2 P-N Junction formation, Concept of depletion layer and barrier potential.

1.3 Biased PN Junction, Forward and reverse biased V-I characteristics, Diode

current Equation, Static and dynamic resistance of PN Diode.

1.4 Comparison of Si and Ge Diode. Packages of Diode.

1.5 Definition of following terms:

Forward Voltage (VF), Maximum Forward Current (IF), PIV Rating, Power

dissipation of diode, Junction Capacitance and Knee Voltage

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2. Diode application: 2.1 Half wave rectifier: Circuit, waveform, working.

2.2 Full Wave rectifier (Centre Tapped): Circuit, waveform, working.

2.3 Bridge rectifier: Circuit, waveform, working.

2.4 Passive Filters: Waveform and working of Capacitor, Choke input and Π-type

filter circuit.

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2.5 Block diagram of regulated power supply: Definition of load regulation, line

regulation. ( Simple numerical on end expression, no derivation to be asked in

the exam)

2.6 Diode as clipper and clamper:

(A) Circuit diagram, waveform and working of positive, negative and biased

clipper.

(B) Circuit diagram, waveform and working of positive, negative and biased

clamper.

3. Special Diode:

Symbol, construction, characteristics, working and application of the following diodes. 3.1 Zener Diode 3.2 Schottky Diode 3.3 Light Emitting Diode 3.4 Photo Diode

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Section II


4. Transistor Fundamentals: 4.1 Construction and working of PNP and NPN transistors.

4.2 Transistor configuration:

Working and characteristics of transistors in CE, CB, CC modes; Expression of

collector current, Relation between α and β, Concept of collector leakage

current.

4.3 Biasing method of transistor:

Need of biasing, circuit and analysis of biasing network such as Fixed bias,

Collector feedback bias, Emitter Bias, Voltage divider bias. Concept of thermal

stability.

(No derivation to be asked in the examination. Simple numerical on the end

expression such as stability factor, current gain is expected.)

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5. Transistor as an amplifier: 5.1 Single stage Common Emitter (CE) amplifier: Working and frequency response,

Concept of phase reversal, DC and AC equivalent circuit, Load line analysis,

Calculation of Zin, Zo, Av and β. Graphical representation of amplification.

5.2 Coupling Methods:

Need and Types of Coupling

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RC Coupled amplifier: working and frequency response.

6. Field Effect Transistor: 6.1 Construction, working and characteristics of JFET and MOSFET (Depletion and

enhancement Type)

6.2 JFET Parameters, relation between JFET parameters.

6.3 Comparison of FET with BJT.

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7. Introduction to Power devices:

Construction, working, symbol and characteristics of SCR, TRIAC, DIAC, UJT.

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List of Practical:

1. To plot the V-I characteristic of semiconductor P-N diode. Find out static, dynamic resistance and knee voltage of P-N diode.

2. To construct and test half wave rectifier and draw i/p and o/p waveforms. 3. To construct and test full wave rectifier and draw i/p and o/p waveforms. 4. To construct and test bridge rectifier and draw i/p and o/p waveforms. 5. To construct and test power supply using full wave rectifier with capacitor input filter. Measure

o/p voltage (DC) with and without filter. 6. To construct and test clipper circuit (Positive, negative and biased) Draw input and output

waveform. 7. To construct and test clamper circuit (Positive, negative and biased) Draw input and output

waveform. 8. To plot the V-I characteristics of LED. Find out static and dynamic resistance of LED. 9. Verify the characteristics of photo diode. 10. To plot regulation characteristics of zener diode. Find out load and line regulation. 11. To plot i/p and o/p characteristics of BJT and find out input resistance and o/p resistance of

BJT in CE Mode 12. To plot i/p and o/p characteristics of BJT and find out input resistance and o/p resistance of BJT

in CB mode. 13. To plot the frequency response of CE amplifier and find out gain bandwidth product of given

circuit. 14. To plot frequency response of RC-coupled amplifier. 15. To plot the characteristic of FET. Label and interpret the various parameters on it. 16. To plot the V-I characteristics of UJT. Label and interpret the various regions on it. 17. To plot V-I characteristics of SCR and label various parameters on it.

Reference Books:

1. A text book of APPLIED ELECTRONICS by R. S. Sedha, Publisher: S. Chand and Co. Ltd. 2. Principles of Electronics by V. K. Mehta, Publisher: S. Chand and Co. Ltd. 3. Electronic Device and circuit by G. K. Mitthal, Publisher: Khanna publishers 4. Electronic Principles by Malvino, Publisher: Tata McGraw Hill, Education 5. Basic Electronic and Linear circuit by N. N. Bhargava, S. C. Gupta, Publisher: Tata McGraw Hill,

Education

Government Polytechnic Mumbai Electrical Engineering Department

EE 11 202Electrical & Electronic Measurement

1

Programme Code: EE

Course Code: EE 11 202 Course Title: Electrical & Electronic Measurement




4 -- 2 6 80 20 -- 50(INT) -- 150

1. Theory paper duration 3 hrs. 2. Theory paper assessment is internal and external. 3. The assessment of practical, oral, term, work is internal. 4. (INT ) The assessment is internal . 5. C = Compulsory, O = Optional

Rationale: This is the subject where the concepts, facts, principles and applications of electrical measurement and instrumentation are studied. These are necessary for experimentation in electrical engineering and also for achieving high degree of accuracy in experimentation. This course is necessary for applications in the field of measurements. Objectives: The students will be able to

- State working principles and explain constructional details of various electrical & Electronic instruments.

- Identify measuring instruments used for measuring electrical quantities. - Measure electrical quantities with various instruments. - Extend ranges of instruments. - Calibrate electrical instruments.

Section I


1 : Basic Concepts:

− Purpose of measurement & significance of measurement. − Various effects of electricity employed in electrical measuring instruments. − Characteristics of Instruments: Static- Accuracy, Precision, sensitivity,

resolution, Static error, Repeatability, Drift, Dead zone. Dynamic- speed of response, Lag, Fidelity, Dynamic error.

− Types of static error- Gross, Systematic, Random. − Classification of instruments based on –

a) Electrical effects. b) Nature of operation. c) Limits of permissible errors.

− Different types of torque in Analog Instruments.

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2 : Measurement of Current and Voltage:

− Construction and principle of PMMC, MI & Electro-dynamometer type Instrument. Merits and demerits.

− Methods of production of torque.

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− Extension of Range of Ammeter and Voltmeter. (Simple Numerical) − Different methods of Extension of Range of Ammeter and Voltmeter. − Errors and their compensation. − Calibration of Ammeter and Voltmeter. − Clamp on meter construction and working. − Digital ammeters and voltmeters, application.

3 : Instrument Transformers:

− Construction, theory and errors in CT and PT. − Effect of secondary of CT open circuited. − Use of CT and PT for extension of ranges. − Specifying a CT and PT Polarity.

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4 : Measurement of Power:

− Concept of power in A.C. Circuit. − Principle and Construction of dynamometer type wattmeter. − Errors and their compensation. − Poly phase wattmeter. − Multiplying factor of wattmeter. − Measurements of power in 3 phase circuit for balanced and unbalanced

load by one wattmeter method and two wattmeter method.

− Effect of power factor variation on wattmeter readings in two wattmeter method.

− Measurement of reactive power in three phase balanced load by one wattmeter method and two wattmeter method.

− Digital Wattmeter.

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Section II


5 : Measurement of Electrical Energy:

− Concept of electrical energy. − Constructional feature & principle of working of single phase and three-

phase induction type energy meter. − Different types of errors and their compensation. − Calibration of energy meter. − Electronic energy meter. − Tri vector meter- Construction, working and Applications.

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6 : Measurement of Resistance, Inductance and Capacitance:

− Classification of Resistance- Low, Medium and High. − Methods of Measurements of Low, Medium and High Resistance

(Potentiometer, Wheatstone’s bridge, Kelvin’s Double bridge and Megger) − Measurement of Earth resistance- Earth tester (Analog & Digital) − Digital Multimeter. − Hay’s Bridge.

− L.C.R. Meter.

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− Testing of faults in cable.

7 : Oscilloscope − Block diagram study of CRO − Lissajous pattern, use of these in phase & frequency measurements. − Concept of Dual trace, dual beam, Sampling, storage, Digital read-out

oscilloscope. − Use of CRO in square wave testing of amplifiers, tracing of diode, transistor

characteristics.

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8 : Other Meters:

− Single phase and three phase Power Factor Meter (only dynamometer type).

− Frequency meter (Weston and Ferro dynamic type). − Digital Frequency Meter.

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List of Practical:

1. To study the constructional details of PMMC and MI instruments. 2. To measure high value of DC current by low range ammeter with shunt. 3. To measure high value of DC voltage by low range voltmeter with multiplier. 4. i) To measure high value of AC current by low range ammeter with CT.

ii) To measure high value of AC voltage by low range voltmeter with PT. 5. To measure active and reactive power in three phase balanced load by one wattmeter method. 6. To measure active power in three phase balanced and unbalanced load by two wattmeter

method and observe the effect of power factor variation on wattmeter reading. 7. To calibrate and use single phase energy meter. 8. To measure medium resistance by Wheatstone’s bridge. 9. i) To measure insulation resistance by Megger.

ii) To measure Earth resistance by earth tester. 10. To measure electrical quantities by digital multimeter and clamp on meter. 11. i) To measure frequency of AC supply. Ii) To measure power factor of single phase and three phase load. 12. To measure circuit parameters by LCR meter. 13. To Understand working of CRO for Various Application.

Reference Books:

1. Electrical and Electronics Measurements and Instrumentation by A. K. Sawhney, Dhanapat Rai and Co., New Delhi

2. Electrical Measurements and Measuring Instruments by Golding and Viddis, A. H. Wheeler & Co. Ltd, New Delhi

3. Methods of Electrical Measurements by C.T.Baldwin, Blakie Publications, London

Government Polytechnic Mumbai SC 11 122 Applied Mathematics

Programme Code: IS /EC/EE

Course Code: SC11 122 Course Title: Applied Mathematics




3 1 -- 4 80 20 -- -- -- 100

Note: 1) PR/OR marks with (*) indicates an assessment by Internal and External examiners, while

PR/OR marks without (*) indicates an assessment by Internal examiner only. 2) TW marks by Progressive Assessment. 3) Theory paper duration is 03 Hrs. and term test duration is 01 Hr. 4) Theory Paper assessment by Internal and External examiners.

Rationale:

The subject intends to teach students basic facts, concepts, principle & procedure of mathematics as a tool to analyze Engineering problems & as such lays down foundation for understanding the engineering & core technology.

Objectives: - Students will able to

1. Understand basic facts of mathematics about the field analysis of any Engineering Problem. 2. Know the standard ways in which the problem can be approached. 3. Apply basic concepts to engineering problem.


Section I

Ch. No.

Contents Hours Marks

1. Integration 1.1 Definition ,Standard formulae for integration (without proof)

1.2 Rules of integration, simple integration, Actual division

1.3 Method of substitution 1.4 Integration by parts 1.5 Integration by partial fraction. 1.6 Definite integral: Definition and properties of definite integral, simple

examples and examples based on the properties.

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2. Applications of Definite integrals 2.1Area under the curve and area enclosed between two curves. 2.2 Mean value and R.M.S. values.

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3. DIFFERENTIAL EQUATIONS 3.1 Definition ,order and degree of differential equation, formation of differential equation 3.2Types of differential equations

* variable separable and reducible to variable separable. * Homogeneous differential equation. * Linear differential equation and Bernoulli’s equation. * Partial derivatives first order only. * Exact differential equation.

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Section II Ch. No. Contents Hours Marks

4 PROBABILITY 4.1 Basic definitions, trial, event, exhaustive, favorable events.

4.2 Mutually exclusive and independent events, addition and multiplication theorem.

4.3 Binomial distribution. 4.4 Poisson distribution 4.5 Normal distribution

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5 LAPLACE TRANSFOM 5.1 Definition of Laplace transform, Laplace transform of standard functions 5. 2 properties of Laplace transform: Linearity, first shifting property , second shifting property multiplication by t, division by t. 5.3 Inverse Laplace transform, properties- Linearity, first shifting, second shifting property method of partial fractions. 5.4 Convolution theorem, l Laplace transform of derivatives. 5.5 Solutions of differential equation using Laplace transform (up to second order equation)

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6 FOURIER SERIES: 6.1 Definition of Fourier series( Euler”s formula)

6.2 Series expansion of continuous functions in the intervals (0,2l) (-l,l) (0,2π) ,( -π,π ).

6.3 Series expansion of even and odd function. 6.4 Half range series.

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References:

Sr.No. Author Title Publication

1 S.P. Deshpande Mathematics for polytechnic students Pune Vidyarthi Graha Prakashan

2 H. K. Das Mathematics for polytechnic students (Volume I )

S.Chand Prakashan

3 G. V. Kumbhojkar Companian to basic maths Phadke Prakashan

4 N. Raghvendra Bhatt Late Shri R Mohan

Singh

Applied Maths Tata McGraw Hill Publication

Academic Coordinator HOD(IS) Principal

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EE 11 304 Electrical Power Generation

1

Programme Code: EE

Course Code: EE 11 304 Course Title: Electrical Power Generation




04 -- -- 04 80 20 -- -- -- 100

Rationale: This is the subject where the principles of electrical power generation systems are studied. Knowledge of different methods of generation of electricity and recent trends in the field is necessary for an electrical engineer. This course is necessary for studying transmission, distribution and power system operation. The subject also provides knowledge of non-conventional methods of electricity generation. It also deals with economics of generation. Objectives: The students will be able to

- List different types of electrical power generation. - Describe working of different power plants. - Explain working of main equipment in power plants. - Compare different types of power plants. - Describe various methods of non-conventional electrical energy generation. - Define terms used in economics of power plant. - Calculate energy bills for different customers.

Section I


1 : Introduction:

− Need of energy. − Electrical energy system. − Conventional and non-conventional energy sources. − Types of generating stations. − Electrical power stations in Maharashtra with capacities. − Terms related to power generation: Energy resources, Pollution, Thermal

efficiency, Installed megawatt capacity, Fossil fuels, Generating voltage level, Transmission voltage level, Distribution Voltage level.

− Grid system: State, Regional and National.

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2 : Thermal Power Stations:

− Selection of site for thermal power stations. − Schematic diagram of thermal power station. − Thermodynamic cycle. − Main equipment in thermal power plant: Steam Boilers, Economizer, Coal

Handling, Super heater, Air pre heater, Steam turbines, Condensers, Cooling water systems, Ash handling.

− Pollution control. − Advantages and disadvantages of thermal power plant.

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3 : Hydro-electric Power Plants:

− Classification of hydroelectric power plants. − Selection of site for hydroelectric power plants. − Schematic diagram of hydroelectric power plants.

− Main components and their functions only: Reservoir, Dam, penstock, turbine house, tail race.

− Types and choice of turbines for different heads. − Advantages and limitations of Hydro-electric power plant.

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Section II


4 : Nuclear Power Plants:

− Types of nuclear reactor power plants. − Site selection. − Schematic diagram of Nuclear power station. − Nuclear Fission, Fuels for nuclear fission reactor. − Working of Nuclear Reactor: BWR-PP, PHWR-PP, LM-FBR − Nuclear reactor waste management. − Precautions to be taken with nuclear power stations. − Future trends in nuclear power. − Advantages and disadvantages of − Nuclear power plant. − Comparison with thermal and Hydro-electric power plants with respect to

site selection, cost, maintenance, pollution.

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5 : Diesel Power Stations:

− Applications of diesel power stations − Schematic diagram of Diesel electric plant. − Major parts and working of Diesel Engine.

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6 : Introduction to Non-Conventional Energy Sources:

− Importance of Non-conventional energy. − Types of non-conventional energy sources. Solar Energy: − Importance of solar energy. − Types of collectors. − Photovoltaic effect for solar energy. − Construction & materials used in solar photo-voltaic cells. − Working & applications of solar energy. Wind Energy: − Selection of site for windmills. − Principle of electricity generation with the help of wind energy. − Block diagram and working of Wind energy plant and its applications.

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− List of major wind farms in the state with their approximate capacities.

7 : Economics Of Power Generation:

− Connected load, Actual load, Load-curve, Load duration curve, Integrated load duration curve. (Simple numerical)

− Plant Factor and reserves. − Maximum demand factor. − Load Factor, Diversity Factor, plant factor, capacity factor, connected load

factor (Simple numerical) − Concept of Load forecasting: short term and long term. − Cost of Generation − Power Project cost – Fixed, Running, Annual, Break even − Tariffs: definition, types, factors deciding tariffs structure. (Simple

Numerical) − Study of electric bills. (Domestic and Industrial) − Importance of interconnections of power stations.

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Note: Visit to minimum two types of power plants with report writing. Reference Books:

1. Electrical Power Systems by Dr. S. L. Uppal and Prof. S. Raoereja, Publisher: Khanna Publishers, New Delhi.

2. Principals of Power Systems by V. K. Mehta and Rohit Mehta, Publisher: S. Chand and Co. Ltd., New Delhi.

3. Non-Conventional Energy Sources by G. D. Rai, Publisher: Khanna Publishers, New Delhi.


EE 11 310Professional Practice

1

Programme Code: EE

Course Code: EE 11 310 Course Title: Professional Practice




-- -- 02 02 -- -- -- -- 50(PA) 50

Rationale:

In the competitive global industrial scenario the technician must possess minimal soft skills to

undertake the supervisory functions. He needs to deal with the masses with set of targeted

achievements.

To cope up with the human engineering aspects efforts are taken to inculcate some soft skills and

techniques to strengthen the qualities like leadership, motivation and general reporting

methodologies in the industries.

In the curriculum implementation part mini projects, group discussions, role plays, are included.

The interviewing techniques will deepen the personality development aspects and concept of

marketing one self.

In nutshell Professional practices will ensure the integrated anchoring of soft skills, personality

development aspects and techno managerial capabilities of a Technician.

Objectives: The student will be able to 1) Acquire presentation, leadership techniques.

2) Acquire interviewing techniques, planning and preparing for interviews.

3) Assimilate the information by participating in seminars and industrial visits..

Appreciate the importance of team building and group dynamics.



2

Section I (40 Marks)


1 : Group Discussion – two exercises

Group discussions on any two topics from techno managerial or social interest.

Group size - divide practical batch into groups of 7 to 10 students, time for group discussion 15 to 20 minutes.

i) Current topics from news papers / T.V. news related to social, education & technology

ii) Energy crisis in India iii) Lokpal Vidheyak (Act) iv) Corruption prevention v) Reservation policy vi) Policies at institutional level – dress code, campus discipline &

cleanliness vii) Ban on plastic carry bags. viii) Pollution control ix) Population control x) Brain drain xi) Right to information act xii) Anti-Ragging act.

Students should prepare a report on salient points discussed on the topic & summarize concluding remarks.

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2 : Interview techniques:

Preparation of C.V.

Knowing self strength and weakness.

Techniques of presenting self information confidently.

Interviewing techniques.

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3 : Seminars: One seminar be arranged on the subjects related to 4 th semester. Or topics beyond curriculum. Each student shall submit a report up to 10 pages and deliver the seminar. batch size – 3 to 4 students. Source of information – books, magazine , Journals, Website ,surveys, Topics suggested Topics related to recent techno economical interests like concurrent engineering, virtual manufacturing, e factory, collaborative designing. National GDP, Fiscal Deficit, etc.

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4 : Industrial visits Structured industrial visits be arranged and report of the same shall be submitted by each student to form a part of the term work. No of visits- At least one Scale of industry- medium scale unit , large scale unit. Group size- preferably a practical batch Report-not exceeding 7 to 10 pages. Purpose : Student should understand, know & learn Production & Delivery of electric energy. Electrical power generated by central power stations (or by distributed

generation) Electric Power transmission Electricity distribution, electricity retailing. Circuit breaker. Generation Methods:

1. Turbines 2. Reciprocating engines 3. Photo voltaic panels

Other Generation Methods. 1. Nuclear 2. Natural gas 3. Coal 4. Petroleum 5. Hydroelectric

Motor Controls Lighting & Lighting control system. HVAC Controls Electrical busbar Power distribution transformers Control panel Relay panels. Following types of industries may be visited in & around the institute. Manufacturing

- Transformer Manufacturing.

- Transmission – line projects

- Distribution – Rural Electrification

- Wind Energy generation

- D.C. Motors

- A.C. Motors

Services

- Electrical Safety & Precaution.

Any other relevant area.

- Steel Industry, Textile Industry, Chemical Industry.

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5 : Lectures by professionals/Industry Experts- Two lectures of two hour duration be arranged on any two topics suggested below or any other suitable topics to acquire practical information beyond scope of curriculum. Students shall prepare a brief report of each lecture as a part of their term work. i) Components of project Report. ii) Various loan schemes of banks, LIC and other agencies for education and other purposes. iii) Uses of electricity in various areas. iv) Role of electrical Engineer in industry v) Methods of electricity generation vi) Industrial drives-Types, components, comparison and applications. vii) Testing & maintenance of electrical Equipments viii) Electrical safety & Troubleshooting. ix) Earthing System x) Current Technologies for generation of electricity

1. Coal 2. Nuclear 3. Gas turbines 4. Oil 5. Solar PV 6. Reservoir Hydro 7. Run- of- River Hydro 8. Wind 9. Gas Engine

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6 : Socially Relevant Activities Conduct any one activity through active participation of students and write the report. Laboratory maintenance.

1. Preparation Laboratory layout 2. Wiring/electrification of Laboratory. 3. Electricity supply system & range of voltages. 4. Three phase & Single Phase distribution system & description of

earthing arrangement. 5. Departmental Library.

Group of students- maximum 4 Report- Not more than 6 pages List of suggested activities- ( activities may be thought in terms of campus improvement) i )Awareness about carbon credit ii) Anticorruption movement iii) Awareness about cyber crimes. iv) Developing good citizens. v) Management of E- WASTE vi) Recycling of waste materials. vii) Accident prevention & enforcement of safely rules. viii) Awareness about pollution and pollution control. (Any other relevant activity may be performed)

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7 : Role play one exercise The teacher will guide group of student so as to make them aware the roles and responsibilities of industrial portfolio bearers. Group Dynamics one exercise

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Term work: The term work shall base on work performed by group of students as enlisted above.


EE 11 205 Electrical Workshop and Appliances

1

Programme Code: EE

Course Code: EE 11 205 Course Title: Electrical Workshop and Appliances




-- -- 02 02 -- -- -- -- 50(PA) 50

Rationale: Basic knowledge of safety precautions, wiring accessories, tools, lamps and their circuits is essential for an electrical engineer. This subject is intended to develop skills of wiring, testing and fault finding in the electrical wiring installations. It also deals with domestic appliances, their working and repairing. The skills will be developed when student actually performs the work. Objectives: The students will be able to

- Identify different wiring accessories. - Identify different tools of wiring. - State different types of lamps and their circuits. - Draw and understand wiring diagrams. - Perform electrical wiring by using different tools. - Find out and repair faults in electrical wiring. - Explain working of domestic appliances. - Find out and repair faults in domestic appliances. - Observe safety precautions while performing electrical work.

List of Practical:

1. To understand signs and notices which are observed in factory workshops regarding electrical safety and precautions.

2. To understand and observe safety precaution in electrical installations. 3. To understand diagrams of electrical tools and list sizes, uses and precautions while using them. 4. To understand the different types of fuses & their applications. 5. To draw diagrams of different wiring accessories. 6. To collect samples of different types of wires. 7. To use tester, test lamp and multimeter. 8. To wire up one lamp controlled by one switch. 9. To wire up staircase wiring. 10. To wire up go down wiring. 11. To wire up call bell. 12. To prepare and mount energy meter board. 13. To wire up power point socket board. 14. To know different types of lamps and their circuit diagrams. 15. To understand different electrical appliances, their circuit diagrams, faults finding and repairing.

a. Electric Iron. b. Electric Hot Plate. c. Electric Room Heater. d. Electric Fans. e. Electric water Heaters. f. Electric Bell. g. Electric Mixer Grinder.


EE 11 205 Electrical Workshop and Appliances

2

16. To study electrical installation of a class room. 17. To study electrical installation of a small workshop. 18. To study electrical installation of a hostel. 19. To study electrification of small-scale industry. 20. To study electrical materials and properties.

Reference Books:

1. Basic Electrical Engineering by M. L. Anwani, Dhanapat Rai and Co., New Delhi 2. How to repair small appliances Vol I & II by Darr


EE 09 203 Electrical Circuits and Network

1

Programme Code: EE

Course Code: EE 11 203 Course Title: Electrical Circuits and Network




03 01 02 06 80 20 50 (I) -- -- 150

Rationale: Electrical Circuits and Networks course includes the concept and principles of circuits and circuit analysis. This course is necessary for understanding and calculating circuit parameters. An electrical engineer must have ability for analysis of circuits and networks. The course is important for understanding the concepts in other electrical courses such as Electrical Transmission and Distribution, Power System, Electrical Measurements and Instrumentation, Electrical Machines etc. Objectives: The students will be able to

- Know basic elements of electrical circuits. - Define basic terms in a.c. fundamentals. - Interpret the response of R,L,C elements to a.c. supply. - Calculate various parameters of a.c. circuits. - Interpret performance of a.c. series and parallel circuits. - Know relationship between line and phase values in polyphase circuit.

Section I


1 : D.C. Circuits and Theorems:

− Concept of Ideal and Practical voltage and current sources. − Conversion of voltage source into current source and vice versa. − Definitions- Source, Active & Passive Sources, Load, Unilateral and Bilateral

circuits. Linear and Non Linear circuits. − Statement, Explanation and application with numerical of following laws

and theorems for d.c. circuits. a) Kirchoff’s laws. b) Mesh / Loop analysis. c) Nodal Analysis. d) Superposition Theorem. e) Thevenin’s Theorem. f) Norton’s Theorem. g) Star Delta Transformation. h) Maximum Power Transfer Theorem.

(Numerical based on above.) i) Reciprocating , Theorem (Statement Only)

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2 : A.C. Fundamentals:

− Difference between a.c. and d.c. quantity. − Advantages of a.c. over d.c.

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− Generation of alternating voltages and currents. − Mathematical expression of alternating quantity. − Basic terms- Instantaneous value, Wave form, Cycle, Periodic time,

Frequency, Amplitude, R.M.S. value, Average value, Peak factor, Form factor, Phase and Phase difference.

− Vector representation of a.c. voltage and current. (Numerical based on above.)

− Concept of leading & lagging phasor.

3 : Phasor Algebra:

− Representation of current, voltage, impedance, admittance in terms of its components.

− Significance of operator ‘j’. − Concept of polar, rectangular and exponential form of alternating quantity. − Conversion of polar to rectangular form and vice versa. − Addition, subtraction, Multiplication and division of vector quantity. (Numerical based on above.)

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Section II


4 : A.C. Series circuits:

− Circuit diagram, phasor diagram and wave form of following a.c. circuit. a) pure resistance ( R ) b) Pure inductance ( L ) c) Pure capacitor ( C )

− Concept of Inductive reactance and capacitive reactance. − Study of R-L, R-C, and R-L-C series circuit. − Concept of Impedance, Admittance and Power factor. − Calculation of current, power and power factor. − Concept of Voltage triangle, Impedance triangle and Power triangle. − Series resonant circuit, Conditions, derivation of resonant frequency,

effect of frequency on R, XL, XC, Z and current. Quality factor of series resonance circuit. Resonance curve for series circuit

(Numerical based on above.)

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5 : A.C. Parallel Circuits:

− Concept of parallel circuit. − Concept of admittance, susceptance and conductance. − Solving parallel circuits by impedance/admittance method, phasor method. − Calculation of current, power, power factor in a.c. parallel circuits. − Condition and characteristics of parallel resonant circuit. Resonance curve

for Parallel circuit. − Comparison with series resonance. − Quality factor of parallel resonant circuit .


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6 : Polyphase Circuits: − Difference between single phase and polyphase system. − Generation of three-phase a.c. supply.

− Advantages of three-phase supply over single-phase supply. − Concept of phase sequence and balanced/unbalanced load. − Relation between phase and line values of current and voltage in Star and

Delta balanced system. − Active, Reactive and Apperent power in three phase Star/Delta system.


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List of Practical:

1. To verify Kirchoff’s laws. 2. To verify Superposition theorem applicable to D.C. circuit. 3. To verify Thevenin’s theorem applicable to D.C. circuit. 4. To verify Norton’s theorem applicable to D.C. circuit. 5. To verify the maximum power transfer Theorem applicable to D.C. & A.C. circuit. 6. To observe A.C. waveform of voltage and current in purely resistive, inductive and capacitive

circuit on C.R.O. 7. To know R-L series circuit

a) To determine impedance and Power factor. b) To draw the phasor diagram of R-L series circuit.

8. To Know R-C series circuit a) To determine impedance and Power factor. b) To draw the phasor diagram of R-C series circuit.

9. To determine the current and P.F. of R.L.C. series circuit at different conditions. 10. To determine the current and P.F. in a.c. Parallel circuit at different conditions. 11. To verify line and phase values of voltage and current in star connected balanced load. 12. To verify line and phase values of voltage and current in delta connected balanced load.

Reference Books:

1. Electrical Technology Volume-I by B. L. Theraja, S. Chand and Co. Ltd., New Delhi. 2. Circuit and network by V.N. Mittle, Tata McGraw Hill 3. Introductory circuit Analysis by Boylested R.L., Wheeler, New Delhi 4. Schaum online series Theory and problems of Electric circuits by Edminister, T. M. G. H., New

York 5. Engineering Circuit Analysis by W. H.Hyat and J. E. Kemmerly, T.M.G.H., New York

Programme Code: EC EC 11 203 Basic Electronics · PDF fileGovernment Polytechnic Mumbai EC 11...

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Transcript of Programme Code: EC EC 11 203 Basic Electronics · PDF fileGovernment Polytechnic Mumbai EC 11...