SYLLABUS OF SEMESTER SYSTEM
FOR THE TRADE
OF
ELECTRICIAN
UNDER
CRAFTSMEN TRAINING SCHEME (CTS)
Duration – 2 Years (4 Semesters)
YEAR – 2012
Designed By
Government of India
Ministry of Labour (D.G.E.&T.)
CENTRAL STAFF TRAINING AND RESEARCH INSTITUTE
EN-Block, Sector-V, Salt Lake
Kolkata-700 091
Page 1 of 35
List of trade committee members approved the syllabus of semester system for the
trade of “Electrician ” held on 18th October 2011 at FTI, Bangalore
1. Shri. B.S. Ravi Prasad
Joint Director, Director I/c, Foremen Training Institute, Bangalore, Chairman
2. Shri. H. Madhava Rao
Joint Director, Apex Hitech Institute, Bangalore.
Member
3. Shri. B.V.S. Sesha chari
Deputy Director, Training I/c, Foremen Training Institute, Bangalore,
Member
4. Shri. P. Joji
Deputy Director, Foremen Training Institute, Bangalore,
Member
5. Shri. K.R. Ganapathy
Deputy Director, Foremen Training Institute, Bangalore,
Member
6. Shri. B.N. Sridhar
Deputy Director, Foremen Training Institute, Bangalore,
Core Member & Convener
7. Shri. Ketan Patel
Deputy Director, RDAT, Mumbai,
Member
8. Shri. C. Ramasubramanian
Deputy Director, Apex Hitech Institute, Bangalore,
Member
9. Shri. R.N. Dohare
Deputy Director, Apex Hitech Institute, Bangalore,
Member
10. Shri. M.N. Renukaradhya
Principal, Govt. ITI. Peenya, Bangalore
Member
11. Shri. B.L. Chandrashekar
Principal, Govt. ITI. Hosur Road, Bangalore
Member
12. Shri. D.M. Nagaraj
Principal, Govt. ITI. Bagur, Channarayapatna, Karnataka
Member
13. Shri. H.N. Prakash
Principal, Govt. ITI. Tiptur, Karnataka
Core Member
14. Shri. B. Paramashivaiah
Asst. Director (Retd), DET, Karnataka
Member
15. Smt. R. Malathi
Training Officer, RVTI, Trivandrum, Kerala
Member
16. Shri. G. Kantharaja
JTO, Govt. ITI, Peenya, Bangalore
Core Member
17. Shri. Suresha
JTO, Govt. ITI, Peenya, Bangalore
Member
18. Shri. V. Venugopala
JTO, Govt. ITI, Hosur Road, Bangalore
Member
19. Shri. N. Dharmachar
JTO (Retd), Govt. ITI, Peenya, Bangalore
Member
20. Shri. B.N. Shreedhar
Chief Engineer,Karnataka power corporation ltd, Bangalore
Member
21. Shri. G.A. Narayanaswamy
Executive Engineer (Retd), Karnataka Electricity Board.
Member
22. Shri. Champaka Rao
Chief- Human Resource, HMT M/c tools Ltd, Bangalore
Member
23. Shri. C. Subbanna
Senior Manager, Kirloskar Electric Co. Ltd, Bangalore
Member
24. Shri. S. Biswas
Asst. General Manager, EDN, BHEL, Bangalore
Member
Page 2 of 35
25. Shri. L.R. Venugopal
26. Shri. Nagabhushana Rao
27. Shri. M.V. Srinivasaiah
28. Shri. A. Srirama
Asst. General Manager, HMT M/c tools Ltd, Bangalore
Manager, Training & Development, Bosch Ltd, Bangalore
Deputy Manager, Quality control, KAVIKA, Bangalore
Engineer, Hindustan Aeronautics Ltd, Bangalore
Page 3 of 35
Member
Member
Member
Member
GENERAL INFORMATION
1. Name of the Trade
: ELECTRICIAN
2. N.C.O. Code No.
:
3. Duration of Craftsmen Training : 2 Years (4 Semesters having duration of six months each)
4. Entry Qualification
: Pass in 10th Class under 10+2 system of Education
5. Unit strength
: 20
6. Space norms
: a) Workshop: 97.6 Sq. metres.
b) Class room: 30 sq.meter.
7. Power norms
: 5.2 KW(for two units)
8. Instructors Qualification
:
Degree in Electrical / Electrical & Electronics Engineering from
recognized engg. college/university with one year experience in
the relevant field OR
Diploma in Electrical / Electrical & Electronics Engineering
From recognized board of technical education with two years experience in the relevant field
OR
10th/Madhyamic pass + NTC/NAC in the Trade of “Electrician”
With 3 years post qualification experience in the relevant field.
9. Desirable qualification
: Preference will be given to a candidate with CITS. (If not done CITS than must be trained within 02yrs on joining)
Page 4 of 35
Page 5 of 35
Syllabus for the Trade of “Electrician”
Duration : Six Month
First Semester
SEMESTER-I DOMESTIC, COMMERCIAL & INDUSTRIAL WIRING
Week
No.
1
2&3
Trade Practical
Safety measures to be observed &
followed in the electrical workshop.
Demonstration of elementary first aid.
Artificial Respiration.
Occupational Safety & Health
Basic safety introduction,
Personal protection:Basic injury prevention, Basic first aid,
Hazard identification and avoidance,
safety signs for Danger, Warning,
caution & personal safety message.
Use of Fire extinguishers.
Visit & observation of sections.
Demonstration of Trade hand tools.
Use, care & maintenance of various
hand tools. Practice of using pliers,
Trade Theory
Engineering Drawing
Vocational Science and
Calculation
Mathematical symbols, applied
workshop problems involving
addition, subtraction,
multiplication, division.
SCOPE OF THE TRADE,
INTRODUCTION TO ELECTRICITY
& SAFETY PRECAUTIONS- Basic
concept of electricity, Various safety
measures involved in the Industry.
Elementary First Aid. Concept of
Standards.
Engineering DrawingIntroduction, Definition &
uses of drawing
equipments.
Freehand sketching of
straight lines, rectangles,
squares, circle, and
polygons.
COMMON HAND TOOLS, CLASSIFICATION
OF ELECTRICAL MATERIALS- Identification
of Trade-Hand tools-Specifications, uses,
Applied workshop problems
Drawing of different types involving common fractions,
decimal fractions, with
of lines.
examples.
Page 6 of 35
4 &5
cutters, screw drivers etc.
Identification of simple types of screws,
nuts, bolts, clamps, rivets etc.
Skinning the cables and joint practice on
single strand / multi strand wire.
Demonstration & Practice on bare
conductors joints-such as Britannia,
straight, Tee & Western union.
Demonstration and identification of
different types of cables.
Demonstration & practice of using
standard wire gauge. Practice on
crimping thimbles & Lugs.
Examination and checking of cables and
conductors. Verification of materials
according to the span.
care & maintenance.
Classification of electrical materialsDefinition and properties of conductors,
resistors, insulators and semi-conductors.
Classification of insulating materialsVoltage grading & Temperature Rise
permissible. Types of wires & cables,
standard wire gauge, Types of joints & their
uses.
Specification of wires & Cables-insulation &
voltage grades.
Low, medium & high voltage.
Precautions in using various types of cables
Practice on installation and reparing of
common electrical accessories.
Fixing of switches, holder, plugs etc. in
T.W. boards.
-Identification and use of wiring
accessories.
Verification of Ohm’s Law,
Verification of Kirchhoff’s Laws.
Verify the characteristics of series and
parallel circuits.
Measurement of resistance by different
methods- a) Using Wheatstone Bridge
b) By voltage drop method.
Experiment to demonstrate the
variation of resistance of a metal with
the change of temperature.
Use of Multimeter.
Verification of open circuit and closed
BASIC ELECTRICAL TERMS, WORK, POWER
& ENERGY. Fundamental of electricity.
Electron theory- free electron.
Fundamental terms, definitions, units &
effects of electric current, voltage/EMF/
P.D, resistance & conductance.
Ohm’s Law Simple electrical circuits and problems.
Kirchhoff’s Laws, applications & numerical.
Wheatstone bridge working principle
and its applications .
Resistance -Laws of Resistance. Series &
parallel circuits.
Resistors- Different Types of resistors &
properties of resistors.
Specification of resistors and tolerance.
Effect of variation of temperature on
resistance. Different methods of measuring
Page 7 of 35
Free hand Sketches of the
hand tools related to
trade and wire joints such
as straight, tee, Britannia
and union joints.
Geometrical construction
of ellipse, ovals, spiral,
Cycloid curves, Polygons,
etc.
Lettering practiceSpecification of letters,
single stroke, vertical
letters & numbers
(gothic).
Drawing the typical
diagram of D-type
cartridge fuse, H.R.C. &
kit-Kat type fuse.
Fuse curves graphics as
per relevant IS standard.
Symbols indicating the
method of operation of
Reduction of common fractions
to decimal fractions, shop
problems.
Conversions from common
fractions to decimal fractions &
vice-versa.
Laws of indices with examples,
applied problems.
UNITS:- Introduction,
definition, Fundamental units,
derived units with examples
C.G.S, M.K.S, F.P.S, S.I
systems of units.
circuit network.
Identification of different types of
Capacitors. Charging, discharging &
testing of Capacitor. Grouping of
capacitors.
the values of resistance,
Explanation of Mechanical work, power &
energy. Electrical power & energy.
Concept of 1Ø & 3Ø supply system & loads.
Capacitor- Construction details, charging,
discharging, types, grouping & uses.
Factors on which capacitance depends.
Formulae & numerical.
6&7
Measurement of voltage, current &
resistance in different circuits.
Measurement of electrical power &
energy directly & indirectly.
Calibration of energy meters.
Insulation resistance test by megger.
Measurement of earth resistance by
earth tester.
ELECTRICAL MEASURING INSTRUMENTSTypes, Construction & working principle of
Electrical measuring instruments such as
Ammeter, Voltmeter, Ohm-meter. Energy
meter, Wattmeter, P.F. meter, multimeter,
megger & earth tester.
8-10
Marking use of chisels and hacksaw on
flats,
sheet metal filing practice, filing true to
line.
Sawing and planning practice. Practice
in using firmer chisel and preparing
simple half lap joint.
Drilling practice using hand drilling &
power drilling machines. Grinding of
drill bits.
Practice in using taps & dies. Threading
hexagonal & square nuts etc. Cutting
FITTING HAND TOOLS, CARPENTRY HAND
TOOLS THEIR USE & MAINTENANCEALLIED TRADE WORK:
Introduction to fitting work. Safety
precautions to be observed. Types of files,
hammers, chisels hacksaw frames, blades,
steel rule, try square -their specification,
grades, care & maintenance.
Marking tools description & use.
Allied trade
Introduction to carpentry workDescription of carpenter’s common hand
Page 8 of 35
the instrument and
accessories as per
relevant IS: Standard
Sketch of panel board
with voltmeter, ammeter
& energy meter.
Dimensioning techniquesaligned & unidirectional
system.
Scales (Enlarged &
reduced)
Projection, type, 1st angle
& 3rd angle.
Introduction isometric
drawing. Isometric axis,
isometric scale.
Simple isometric
drawings, isometric views
of simple objects- cubes,
rectangular blocks etc.
Isometric views of simple
blocks.
Inter-relationship between
metric & British system of
units.
Conversion of quantities from
one system of units to another,
Applied problems.
Electricity:-Introduction, Its
uses, Electric current, Use of
switches & Fuses.
Conductors, Insulators, SemiConductors.
Fundamental, terms, E.M.F,
Voltage, P.D, Resistance,
Conductance, Electrical power,
threads on studs and on pipes. Riveting
practice.
Practice in using snips, marking &
cutting of straight & curved pieces in
sheet metals. Bending the edges of
sheets metals. Riveting practice in sheet
metal. Practice in making different
joints in sheet metal and soldering the
joints.
11&12 Construction & testing of various
electrical circuits with different
accessories.
Connection of Calling Bell, Buzzer,
Electric Iron, Heater, Light & Fan etc.
Soldering practice.
Measurement of Resistance and
specific Resistance. Application of
Wheatstone bridge in measurement of
Resistance
tools such as saws planes, chisels mallet
claw hammer, marking, dividing & holding
tools- their specification, grades, care &
maintenance.
Types of drills, drilling machines, proper
use, care and maintenance.
Description of taps & dies. Types of rivets &
riveted joints.
Use of thread gauge.
Introduction to sheet-metal work
Description of marking & cutting tools such
as snips, shears, punches & other tools like
hammers, mallets etc. used by sheet metal
workers. Use of different bench tools used
by sheet metal worker. Soldering materials,
fluxes and process.
COMMON ELECTRICAL ACCESSORIES,
BASIC CIRCUITS- Common Electrical
Accessories, their specificationsExplanation of switches, lamp holders,
plugs and socket etc. Developments of
domestic circuits, using switches, fuse,
MCB, sockets, lamp, fan, calling bell/buzzer
with individual switches, Two way switches,
I.C.T.Ps, I.C.D.P’s, MCCB etc.
Definition of electric circuit, requirements
to construct a simple circuit, types of
circuits such as open, close, short &
earth/leakage circuit. Circuits of common
domestic equipments & appliances.
Soldering- Solders, flux and soldering
technique.
Types of soldering irons-their proper uses.
Page 9 of 35
Electrical energy, Definitions,
Units.
Conversion of isometric
into orthographic
projection.
Effects of Electric Current,
Ohms law, Simple electrical
circuits, Applied problems.
Free hand sketch of
I.C.T.P & I.C.D.P. switch
with neutral.
Resistors- Laws of resistance,
Series & Parallel Circuits,
Applied problems.
INSULATING
MATERIALS:- Different
Insulating materials including
transformer oil, Natural
insulating materials Synthetic,
Brief description & properties
of Electrical materials- Silicon,
Nichrome etc
13-15
Practice in casing- capping & conduit
wiring with minimum to more number
of points.
Use of two way switches
Testing of insulation resistance by using
megger.
Fixing of calling bells/buzzers.
Making of test boards & extension
board’s. Identification & demonstration
of conduit & accessories . Cutting,
threading & laying of conduits.
DOMESTIC WIRING:
Practice on Installation of different
wiring system for Domestic -Lighting,
AEH, Inverter/UPS, Staircase wiring and
power circuits for both 1phase
16&17 COMMERCIAL WIRING:
Practice on Installation of different
wiring system for Office, Apartments,
Commercial complex, Malls, bank,
lodge, hospital etc.
-Lighting, AEH, Inverter/UPS etc.
Practice of Hospital wiring, godown
wiring , hostel wiring, tunnel wiring etc
DOMESTIC, COMMERCIAL & INDUSTRIAL
WIRING - METHODS, INSTALLATION &
TESTING- Electrical wiring, importance, I.E.
rules.
Specifications for wires, conduits &
accessories.
Grading of cables and current ratings.
Selection of wiring system & Principle of
laying domestic wiring & testing by megger.
Types of wiring system in domestic
commercial & industrial. Using PVC casing
capping, PVC & Metal conduit surface &
concealed system, CTS wiring, Lead
sheathed wiring. Maintenance & Repair of
wiring system.
Practice of dimensioning
to orthographic views.
Free hand sketch of
different types of wire
joints – Britannia straight,
Britannia Tee & western
union joint etc.
Conventional symbols of
electrical installation as
per BIS.
WORK, POWER, ENERGY:
- Definitions, Their units,
Applied problems.
Different forms of energy,
Potential energy, Kinetic
energy, -Heat, Mechanical,
Electrical.
Conversion from one form to
another.
Meaning of H.P, I.H.P, B.H.P,
Applied problems.
.
DOMESTIC WIRING:
Techniques, procedures of Layout & circuits
– Lighting, AEH, Inverter, Staircase wiring
etc.
COMMERCIAL WIRING:
Techniques, procedures of Layout &
circuits – Lighting, power, Inverter/UPS
wiring for Office, Apartments, Commercial
complex, Malls, bank, lodge, hospital etc.
Hospital wiring, godown wiring , hostel
wiring, tunnel wiring etc
Graphical symbols used in
electrical circuits,
elementary drawing of
plug & sockets etc.
Oblique drawing & their
views.
Detailed diagram of
calling bell/
electromagnet etc
Page 10 of 35
METALS: - Physical
properties, and Mechanical
properties of metals as colour,
density, structure, Tenacity,
Brittleness, Elasticity,
Malleability, Ductility,
Hardness, compressibility etc.
and uses of copper Zinc, Lead ,
Tin, Aluminium, Brass, Bronze,
Solder, Bearing metals, Timber,
Rubber.
Properties and uses of cast iron,
wrought-iron, plain carbon,
steel, High speed steel & alloy
18&19 INDUSTRIAL WIRING:
Practice on Installation of different
wiring system for office &Workshop
1ph & 3 phLighting, Inverter/UPS, power wiring.
Street lighting.
Trouble shooting & Maintenance of
Wiring systems ofoffice, hostel, hotel, residential building
, workshop, hospital etc
20
Installation of - Neon Sign tube,
Mercury vapour (H.P. & L.P.)
Sodium vapour, Halogen Lamps, single
tube, double tube, Metal halide lamps.
Practice on decoration lighting
21
Earthing – Practice on installation of
INDUSTRIAL WIRING:
Methods & procedures of Layout & circuits
- Lighting, power, Inverter/UPS wiring for
office & workshop. Street lighting. Power
wiring for workshop.
Trouble shooting & Maintenance of Wiring
systems ofoffice, hostel, hotel, residential building ,
workshop, hospital etc
Simple electrical circuits
containing ampere meter,
Voltmeter, switch &
battery.
Free hand sketching of
Staircase wiring, Godown
wiring, tunnel, bank,
lodge, hospital wiring etc.
ILLUMINATION:Explanation of Illumination- Terms &
definitions, laws of illumination,
illumination factors, intensity of light –
importance of light, Direct & indirect
lighting-efficiency in lumens per watt,
colors available.
Construction, working & applications of –
Incandescent lamp, Carbon arc lamp,
Fluorescent tube, CFL (Compact fluorescent
lamp), Neon sign, Halogen, Mercury
vapour, sodium vapour, Metal hallide
lamps etc.
Decoration lighting, Drum Switches etc.
Numerical problems.
Wiring diagram of the
connection of
arrangement and push
button control of two
speed AC motor.
As per B.I.S.
Schematic & connection
diagram of Florescent
lamp, Sodium vapour
lamp, Mercury vapour
lamp etc.
EARTHING SYSTEM-
Types of threads & their
Page 11 of 35
steel. Brief description of
manufacturing process of steel,
Copper, Aluminium.
SQUARE & SQUARE
ROOTS: - Squares, Square
roots, symbol of root, symbol of
square root, symbol of cube root
etc, Methods of finding of
square roots-Division method,
Factorization method and
Logarithms method. Perfect
squares, Perfect cubes (cubical
figures), Square root of Perfect
squares, Square root of any
figure. Theorem of Pythagoras,
related problems.
PERCENTAGE: Introduction, Applied problems.
SPEED & VELOCITY:Dynamics, Introduction, rest &
motion, Types of physical
quantities-Scalars ,Vectors,
Examples.
Speed, velocity, displacement,
acceleration, retardation etc,
Definitions, Their units,
Applied problems.
Uniform velocity, Average
22&23
earthing system and testing of earthing
system- Pipe earthing, Rod type
earthing, Plate earthing.
Measurement of earth resistance.
Connection & testing of Earth Leakage
circuit breaker.
Earthing – Definition & Importance of
Earthing, Principle of different methods of
earthing-Pipe earthing, Rod type earthing,
Plate earthing, Earth Leakage circuit
breaker.
representation on
drawing.
Preparation of Layout for domestic,
commercial & workshop electrical
installation.
PLANNING, ESTIMATION & COSTINGConcept & principles of plan, estimation &
cost. Preparation of complete House-wiring
layout- Lighting & AEH, Industrial wiring,
Commercial such as office, lodge, hospital,
bank Circuit etc...
I.E. Rules for Multistoried buildings.
Types of nuts, bolts, studs
& washers.
Prepare domestic layout
diagram of Lighting &
power circuit.
Estimation & costing of materials &
accessories as per layout.
velocity, relative velocity with
examples, Related applied
problems.
Drawing the schematic
diagram of plate and pipe
earthing as per B.I.S.
Acceleration due to gravity,
examples, Equations of motion
of a body, Derivations, Distance
covered in the ‘n’th sec,
Momentum of a body, Recoil of
the gun, Newton’s laws of
motion with applications.
Applied problems.
Simple Estimation & costing:Simple estimation of the
requirement of the materials etc
as applicable to trade.
24-26
REVISION & TEST
Page 12 of 35
Syllabus for the Trade of “Electrician”
Duration : Six Month
Second Semester
SEMESTER-II REPAIR OF DOMESTIC APPLIANCES & REWINDING OF MOTORS
Week
No.
Trade Practical
Trade Theory
Engineering Drawing
1&2
Assembly / winding of a simple electro
magnet.
Demonstration on-flux meter.
The magnetic flux produced by
Electromagnet, Demonstration on Tracing
the magnetic field, B-H Curve & Hysteresis
loop for a specimen.
Demonstration on effect of eddy current
on different samples.
MAGNETISM & ELECTROMAGNETISM.
Magnetism – Definition, Classification of
magnets, methods of magnetization,
magnetic materials. Properties, care &
maintenance. Para & Diamagnetism and
Ferro magnetic materials. Comparison of
magnetic & electric circuit.
Principle of electro-magnetism, Right hand
grip rule, right hand thumb rule, Maxwell’s
corkscrew rule, Fleming’s left & right hand
Page 13 of 35
Vocational
Calculation
Ratio
&
Science and
Proportions:
-
Foundation bolts, vibration Definitions, Symbol, Types of
proportions, Applied problems.
nuts (locking).
Machine screws &
screws.
MAGNETISM:Definition,
Magnetic materials, Magnetic
Field, Flux Density, Magnetic
Permeability
set moment,
,Susceptibility ,Principle of
electromagnetic
induction,
comparison of magnetic &
electric circuits. Electro magnet
rules, Magnetic field of current carrying
conductors, loop & solenoid. Self & Mutual
induction.
Fundamental terms - MMF, Flux density,
susceptance, reluctance, etc. B/H. curve,
Hysteresis, Eddy current. Principle of
electro-magnetic Induction, Faraday’s Laws,
Lenz’s Law. Numerical problems.
3-5
6-8
Identification and study of the parts of a
D.C.machine.
Practice- dismantling and assembling of
D.C. Machine.
Connection
of
shunt
Generator,
Measurement of voltages-Demonstration
on field excitation.
Connection of compound GeneratorVoltage measurement-cumulative and
differential –
No Load & Load characteristics of Series,
Shunt & Compound Generator.
Trouble shooting & maintenance of DC
Generators.
Demonstration
and
practice
on
identification of parts and terminals.
Study of 2 point, 3 point & 4 point starters.
Study of the characteristics of DC motors.
Connection, starting, running, speed
control, calculation of efficiency. Testing of
D.C. motors. Demonstration on Thyristor /
electronic control of DC motor.
Trouble shooting & maintenance of DC
motors.
Demonstration
of
sine
wave,
DC MACHINES & CONTROL GEARS:
D.C. Machines - General concept of
Electrical Machines. Principle of D.C.
generator.
Parts-Field
Coil,
Yoke,
Commutator, slip ring Brushes, Laminated
core. Etc.,
Classification, E.M.F. equation, Types &
applications of DC Generators. Brief
description of series, shunt and compound
generators with their characteristics. Expl.
of Armature reaction, commutation,
interpoles and their uses, connection of
interpoles. Power stage, Efficiencies, voltage
regulation, Trouble shooting. Numerical
problems.
DC Motors – Working principle, Terms used
in D.C. motor-Torque, speed, Back-e.m.f.
etc. Related problems. Types, characteristics
and practical application of D.C. motors.
Safety precaution to be taken in DC Series
motors. Starters used in D.C. motors
Types of speed control of DC motors in
industry Ward-Leonard control, Thyristor /
electronic controls.
AC FUNDAMENTALS, SINGLE PHASE & 3
Page 14 of 35
(solenoid),
applications.
Types of keys, cotters.
Practical
MAGNETISM: - Comparison
of magnetic & electric circuits.
Sketch of yoke & field
TRIGONOMETRY:
poles of D.C. machine.
Definition,
Trigonometric
functions,
applications
of
Sketching of brush and trigonometry,
brush
gear
of D.C. Use of trigonometrical tables,
applied problems, use of
machines.
logarithmic
trigonometrical
tables.
Trigonometrical
Sketching of D.C. 2 point, formulae, Relationship between
3-point & 4 point starter.
trigonomical ratios, sine rule
cosine rule Areas of triangles,
Polygons etc, with the aid of
trigonometry.
Sketch of panel board for
D.C. Motor with suitable
starter,
rheostat,
voltmeter, ammeter &
main switch.
Knuckle joint & cotter Measurement
of
angles-
9-11
instantaneous values etc. Study of the PHASE behavior of R, XL & XC in A.C. circuits both Alternating Current -Comparison D.C& A.C.,
in series and in parallel.
Advantages of A.C over D.C. & related terms
Instantaneous value, R.M.S. value, Average
Experiment on poly phase circuits. (star & value, Peak factor, form factor, frequency,
delta) Current, voltage, power & P.F. etc. Generation of sine wave, phase and
measurement in poly-phase balanced & phase difference. Inductive & Capacitive
unbalanced circuits.
reactance XL & Xc, Impedance (Z), power
Measurement of power, P.F., Frequency & factor, (P.F) ; Vector diagram. Active and
energy in single & poly-phase circuits.
Reactive power. Admittance, susceptance &
Use of phase sequence meter & phase conductance.
sequence indicator.
Simple problems on A.C. , single phase. AC
circuit containing R, L ,C, R-L, RLC in both
series & parallel, power consumption, P.F.
etc.
Concept
of three-phase generation,
Advantages of 3 ph. Over 1 ph. Supply.
Fundamental terms- Line voltage & phase
voltage, current. Star & Delta connection.
Power & P.F. measurement in balanced and
unbalanced load. Effect of open neutral in
3Ø supply system. Numerical problems.
Identification, Connection of single phase Single phase induction motorcapacitor start/run motor, testing, running Working principle, different method of
and reversing.
starting
and
running
(capacitor
start/capacitor run, shaded pole). FHP
Identification, connection, testing, running motors.
and reversing DOR of universal motor.
Universal motor- Principle, characteristics,
applications in domestic appliances and
industry. Trouble shooting.
Repulsion induction motor- Principle,
characteristics, applications in domestic
appliances and industry. Trouble shooting.
joint.
sexagesimal
system,
centesimal, circular (radian)
Types of rivets & riveted system.
Trigonometrical
values
of
joints.
certain degrees such as 0,
30,45,60,90
degrees,
trigonometrical values of any
angle, related problems.
Couplings – Flange, box & HEIGHTS & DISTANCES:muff coupling, protected Angle of elevation , Angle of
depression, applied problems.
type, clutch.
FORCE:- Definition – Mass,
Sketching of D.O.L. & Star- Weight ,Force , Their Units,
delta starter.
absolute unit of force , The
Layout arrangement of ac
motor with starter &
accessories for control
panel.
Sketching the connection
Page 15 of 35
weight of a body ,Resultant
force, Representation of force,
Space & Vector diagrams,
Parallel forces, Couple .
Parallelogram law of forces,
Resolution & composition of
forces. Solution of problems
with the aid of vectors.
diagram of controlling & Conditions of
of
protective devices for Kinds
Examples.
Induction motors.
12-15
16&17
Install, repair & service of all kinds of
electrical home appliancesDismantle and reassemble, General repair
of heating iron, kettle, ceiling fan, table
fan, washing machine, wet grinder & mixer
grinder.
Test the fan capacitors.
Clean and lubricate the bearing of ceiling
and table fan, and check the speed.
Repair and rectification of an automatic
electric iron, servicing and repairing of
mixer, ceiling and table fan.
Measure the insulation resistance between
the terminals and body of the appliance.
Assemble, connect and install a single &
twin fluorescent lamp with accessories.
Check the internal connections of cooking
oven selector switch and .
Replace the heating element in a soldering
iron.
Check the simple mechanical timer, small
water pump, washing machines and regular
service and trouble shooting.
STUDY, REPAIR & MAINTENANCE OF
DOMESTIC ELECTRICAL APPLIANCESSpecification, Construction, block diagram ,
working & uses of 1. Electric Heater
2. Electric Iron (Auto & non-auto)
3. Electric Kettle
4. Ceiling Fan
5. Table Fan
6. Washing Machine (Manual, semi-auto
& fully auto)
8. Microwave oven
9. Storage water Heater
10. Wet Grinder
11. Mixer grinder
-Do-
Test a single-phase transformer for its
Continuity and insulation.
Take the dimensions of a bobbin and
prepare the bobbin from suitable materials.
Measuring a enamelled winding wire with
Standard wire gauge.
Dismantle /reassemble the
transformer cores.
Wind the primary and secondary of
REWINDING OF CHOKES, COILS & SMALL Further practice in Blue -DoTRANSFORMERS - Testing the transformer print reading.
Triangle of forces, Converse of
triangle of forces, Lami’s
theorem.
Connection diagram of 1Ø
motor
with
suitable Effects of force & materials
starter,
meter
& such as application as
expanding, bending, twisting
accessories.
& shearing.
Fault finding and trouble shooting of
domestic electrical appliances.
before declaring for rewinding. Terminology
used in single phase and three phase
winding.
Principle of shell type winding techniques
Method of rewinding of choke & coil.
Impregnation / Varnish after testing the
Page 16 of 35
Equilibrium,
Equilibrium,
Drawing
development
diagram for single-phase
A.C. motors.
Isometric
drawing
of
transformer.
transformer – its advantages.
circular objects – Cylinder,
Use & Operation of hand operated and Familiarization
and
operation
with cone, hallow cylinder etc.
motorized coil winding machine.
motorized coil winding machine.
General maintenance-Test the transformer
for insulation, transformation ratio and
performance.
18-23
Method of stripping the old winding and
preparing the winding former and the coils.
Preparation of winding data for given
Motor. Method of inserting coil in the
slots.
Procedure followed for re-winding of all
kind of electric motors like 3 phase &
single phase A./C. motors, DC machines,
pump motors, ceiling fan, table fan,
washing machine motors etc.
Various methods used of inserting coil into
the slots.
Making end connections
Impregnation & Testing the motor after
rewinding.
REWINDING OF AC MOTOR, DC MOTOR
WINDINGD.C. m/c Winding— Introduction to
armature winding. Winding terms - pole
pitch, coil pitch, back pitch, front pitch,
Types of winding - Lap & Wave winding.
Progressive and retrogressive winding.
Moment of Inertia, Radius of
Drawing of simple lap & Gyration, Centripetal force,
Centrifugal force.
wave winding.
Rectifiers:- Half wave ,Full
Isometric
drawing
of
wave
,Bridge
rectifier,
circular objects – Hallow
Calculations
related
to
cylinder, bearings, C.I.
maximum value, Average
brackets.
value
Winding materials, Conditions to be fulfilled
for Lap & Wave winding.
Types of sections &
sectional
views
(Half
A.C. m/c Winding - Introduction to stator section & Full section.)
winding, Terminology used in single phase
and three phase winding like pole pitch, coil
pitch etc., rules for end connection of 3Ø
motors. Testing the motor before declaring
Method of dismantling the burnt winding for rewinding. Principle of different winding Blue print reading
wire.
techniques.
Study the parts of armature.
Check and test the armature.
Strip the old winding from the armature
Record the winding data
AC/DC armature winding.
Prepare the armature for rewinding.
Preparation of winding data for given
armature.
Wind the coils by hand insulate them
Connection of armature leads on raiser.
Preparation of winding table, connection
Page 17 of 35
diagram, winding diagram for given
armature.
Practice end connection, electrical and
distinguishing start and finish of each.
Impregnation / varnish of armature after
rewinding and test it.
24
25&26
PROJECT WORK/INDUSTRIAL VISIT
REVISION & TEST
LIST OF TOOLS & EQUIPMNT FOR SEMESTER-I &II
FOR THE TRADE OF “ELECTRICIAN”
(Unit Size : 20)
Sl. No.
NAME OF TOOLS & EQUIPMENT
QUANTITY
TRAINEE TOOL KIT
4
Rule wooden 4 fold 60 mm
Plier insulated 150 mm
Plier side cutting 150 mm
Screw driver 100 mm
21nos.
21nos.
21nos.
21nos.
5
6
7
8
9
Screw driver 150 mm
Electrician connector, screw driver 100 mm insulated handle thin stem
Heavy duty screw driver 200 mm
Electrician screw driver 250 mm thin stem insulated handle
Punch centre 150 mm X 9 mm
21nos.
21nos.
1
2
3
21nos.
21nos.
21nos.
Page 18 of 35
Electrician Knife
Neon Tester ,500V
Rule steel 300 mm
Tenon saw 250 mm
Hammer, cross peen 115 grams with handle
Hammer ball peen 0.75 kg. With handle
Firmer chisel wood 6mm,12 mm 25mm
Gimlet 6 mm.
Bradawl
Scriber 150 mm X Ø 4 mm (Knurled centre position )
Pincer 150 mm
10
11
12
13
14
15
16
17
18
19
20
21nos.
21nos.
21nos.
21nos.
21nos.
21nos.
21 each
21nos.
21nos.
21nos.
21nos.
SHOP TOOLS, INSTRUMENTS & MACHINERY
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
C. Clamp 200 mm, 150 mm and 100 mm.
Spanner 150 mm adjustable 15 degree
Blow lamp 0.5 litre
Electric Melting pot with laddle
Chisel cold 25 mm X 200 mm
Drill Machine hand 0 - 6 mm capacity
Electric drill machine portable 6 mm capacity
Pillar electric drill machine 12 mm capacity, 1 H.P. 3Ø
Allen key
Oil can 0.12 litre
Grease gun ½ litre capacity
Outside micrometer 0 - 25 mm
Bench grinder motorised , 1 H.P. 3Ø
Rawl plug tool & bit
Pulley puller
Bearing puller
Thermometer 0 -100º C
2 each
1 No.
2 no.
1 no
2 no.
1 no
1 no
1 no
1 set
2 no.
1 no
1 no
1 no
2 set
1 no
1 no
1 no
Page 19 of 35
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
Scissors blade 150 mm
Crimping tool, hand operated (Up to 50mm²)
Wire stripper , Manual (Up to 16 mm²)
Wire stripper auto eject (Up to 16 mm²)
Chisel cold flat 12 mm
Mallet hard wood 0.50 kg.
Mallet Teflon 0.50 kg.
Hammer Exeter type 0. 40 kg.
Hacksaw frame 200 mm, 300 mm adjustable
Try Square 150 mm blade
Outside & inside caliper 150 mm
Plier flat nose 100 mm
Plier gas, round nose, 100 mm
Plier Gas, 150 mm
Tweezers 100 mm
Snip straight 150 mm
Snip bent 150 mm
Spanner D.E. metric standard set
Drill hand brace 0 - 100 mm
Drill S.S. Twist block 2 mm, 5 mm 6 mm
Plane, smoothing cutters, 50 mm
Gauge, wire imperial
File flat 200 mm 2nd cut
File half round 200 mm 2nd cut
File flat 150mm rough
Rasp, half round 200 bastard
Iron, soldering 25 watt, 65 watt, 125 watt
Desoldering gun
Vice hand 50mm jaw
Vice Table jaw 100 mm
Pipe cutter to cut pipes up to 5 cm. dia
4 no.
2 set
4 no.
4 no.
4 no.
4 no.
4 no.
8 no.
2 each
4 no.
2 each
4 no.
4 no.
4 no.
4 no.
2 no.
2 no.
2 set
4 no.
4 each
4 no.
2 no.
8 no.
4 no.
4 no.
4 no.
4 each
4 no.
4 no.
8 no.
4 no.
Page 20 of 35
49.
50.
51.
52.
53.
54.
55.
56.
57.
58.
59.
60.
61.
62.
63.
64.
65.
66.
67.
68.
69.
70.
71.
72.
73.
74.
75.
76.
77.
78.
Stock and die set for 20 mm to 50 mm G.I. pipe
Multi meter 0 - 1000 MΩ, 2.5 - 500 volt (Analog, Portable type)
Digital Multi meter ( 3 ½ digits )
Voltmeter M.I. 0 –500V A.C. ,Analog, Portable type
Mill Voltmeter centre zero 100 – 0 – 100 mV, Analog, Portable type
D.C.Milliammeter 0 -500mA, Analog, Portable type
Ammeter MC 0-1 A, Analog, Portable type
Ammeter MC 0-5 A, Analog, Portable type
Ammeter MC 0-15-25 A, Analog, Portable type
Ammeter M.I.. 0-5A, Analog, Portable type
Ammeter M.I.. 0-15-25A, Analog, Portable type
K.W. Meter 0-1-3KW 300V/600V, 5/10A, Analog, Portable type
A.C. Energy meter (1Ø, 5A , 230 V)
Single phase power factor meter, Analog, Portable type
Frequency meter, portable, Analog type
Tacho meter digital type
1 set
6 nos
2 no.
1 no.
1 no.
1 no.
1 no.
1 no.
1 no.
1 no.
1 no.
2 no.
1 no.
1 no.
1 no.
Motorized coil winding machine
1 no
3 no.
2 set
6 each
2 no.
2 no.
2 no.
1 each
Stand for armature winding
Readymade former universal size
Fibre or Hylam knife of assorted sizes
Awl of required length & thickness
Spatula
Magnetic compass 15mm dia
Burnt out 3Ø motor with single layer distributed winding of 3 HP, 5HP
Burnt out 3Ø motor with single layer concentric half coil winding of 3
HP
Readymade stepped former universal size
Burnt out armature of DC Machine, 2.25 KW
Bath Impregnating
Baking oven
Growler external
2 no.
2 no
2 set
2 no.
1 No.
1 no.
1 no.
Page 21 of 35
79.
80.
81.
82.
83.
84.
85.
86.
87.
88.
89.
90.
91.
92.
93.
Tong tester / Clamp meter, 0 – 100 Amp. AC
Megger 500volts
Wheat stone bridge complete with galvanometer and battery
Load bank- 5 KW( Lamp / heater Type) Including panel meters,
Controlling device & protective device.
DC power supply 0 - 100 volt, 5A
Rheostat 0 – 1Ω, 5A.; 0 – 10 Ω., 5A ; 0 – 25 Ω, 1A. ; 0 – 300 Ω., 1A
Domestic appliances –
a) Electric hot plate 1500 watt. 220 V with temperature control
b) Electric kettle, 1000 watts, 230 V
c) Electric iron, 750 watts, 230V with temperature control
d) Immersion beater 750/1000/1500W-230 V
e) Geyser 25 litre 240 V (Storage type)
f) Washing machine 6.5 kg (Semi automatic)
g) Mixer grinder
h) Wet grinder
i) Induction type heater
Flux meter 0-30µ tesla
Laboratory type induction coil 6 volt to 230V
2-point D.C. starters
3-point D.C. starters
4-point D.C. starters
Electrical machine trainer: -Suitable for demonstrating the construction
and functioning of different types of DC machines and AC machines
(single phase and three phases). Should be completed with friction
brake, dynamo meter instrument panel and power supply units.
Motor generator (AC to DC) consisting of :
a) Motor induction squirrel cage, 7 HP 400 Volts, 50-cycles, 3-phase with
star delta starter and switch directly coupled to DC shunt generator 5
KW, 440 volts, and switch board mounted with regulator, air circuit
breaker, ammeter, voltmeter knife blade switches and fuses, set
complete with case iron and plate, fixing bolts, foundation bolts and
flexible coupling.
Used DC generators-series, shunt and compound type for overhauling
practice
1 no.
1 no.
1 no.
2 set
2 no.
2 each
2 no.
2 no.
2 no.
1 no.
2 no.
2 no.
2 no.
1 no.
1 no.
Page 22 of 35
2 no.
1 no.
1 no.
1 no.
1 no.
1 set
1 set
1 each
94.
95.
96.
97.
98.
99.
100.
101.
102.
103.
104.
105.
106.
107.
108.
109.
110.
111.
112.
113.
D.C. shunt generator, 2.5 KW, 220 V with control panel accessories
D.C. compound generator, 2.5 K.W. 250 V, with control panel including
filed rheostat, voltmeter, ammeter and circuit breaker
Motor series DC, 220 Volt, 2 HP, coupled with mechanical load with
control panel accessories
Motor shunt DC 220 volt, 2 HP with control panel accessories
Motor DC compound wound 220 volt 2 HP with starter and switch
Motor A.C. series type 230V, 50 cycles, ½ HP with mechanical load
Motor AC single phase 230 volt 50 cycles 1 HP capacitor type with starter
switch 1 HP
Motor universal 230 volt, 50 cycles ½ HP with starter/switch
Fan A.C. 230 volt, 1200 mm
Diesel generator set, 5 KVA, 440 volt, AC 3 phase with suitable
accessories
Bench working 2.5 x 1.20 x 0.75 meters
Almirah 2.5 x 1.20 x 0.5 meter
Instructor’s table 2 ½ x 4 Feet
Instructor’s chair .S type
Industrial type locker 12 doors
Fire extinguisher. 5 kg capacity
1 set
1 set
1 no.
2 no.
2 no.
1 no.
1 no.
1 no
2 no.
1 set
4 no.
2 no
1 no.
2 no.
2 no.
2 no.
Fire buckets. 5 liters capacity
Metal rack 100 x 150 x 45 cm
2 no.
4 no.
Tower ladder on type wheels Min 10ft-Max 30ft
Portable extension ladder Aluminium 6 to 9 meters
1no.
1no.
Page 23 of 35
Page 24 of 35
Syllabus for the Trade of “Electrician”
Duration : Six Month
Third Semester
SEMESTER-III INDUSTRIAL ELECTRONICS & MAINTENANCE OF MACHINES
Week
No.
1&3
4 -6
Trade Practical
Trade Theory
Identification of semiconductor
devices. Diodes-symbol – Testing of
diodes using multimeter.
Studying the characteristics of diodes
(Forward & reverse bias of junction &
zener diode).
Construction & testing of Half wave,
Full wave, Bridge rectifier, Filter circuits
(without & with filter circuits). Simple
R.P.S.
BASIC ELECTRONICS-INTRODUCTION,
COMPONENTS, CHARACTERISTICSAtomic structure, Semiconductor energy
level. Formation of ‘P’ & ‘N’ type of
semiconductor materials –P-N-junction.
Reverse Bias and Forward Bias.
Diode-classification of diodes Zener,
LED,photo diode, solar cells, Heat sink.
Specification of Diode – PIV rating.
Rectifier circuits- Half wave, Full wave and
Bridge circuit. Filter circuits.
Drawing B.I.S. symbols for
electronic components.
Diodes, Transistor, Zener
diode, S.C.R. I.C. etc.
Using of digital voltmeter and ammeter.
Use of digital multi meter.
ELECTRONIC MEASURING INSTRUMENTS
Conversion of simple objects
Page 25 of 35
Engineering Drawing
Filling of m/cs history card
and maintenance cards and
inventory control cards.
Vocational Science and
Calculation
LOGARITHMS: Introduction,
Definition, applications of
logarithms, log tables, positive
characteristic, negative
characteristic mantissa, antilog
tables. Relation between log
&Antilog tables. Laws (rules) of
logarithms. Examples, Applied
workshop problems. Practice in
the use of log for multiplication,
division, square, square root,
cube root. Related problems.
STRESS & STRAINS:Introduction, definitions ,types
– Construction details, working principle,
types & applications of
Voltmeter & Ammeter- (Digital type)
Identification of different controls & use Multimeter:i) Analog type ii) Digital type
of Oscilloscope.
Megger: i) Analog type ii) Digital type,
Measurement of different wave shapes
its construction, working and uses.
and their values using C.R.O.
Tong tester: i) Analog type ii) Digital
type, its construction, working and uses.
Connect energy meter and measure the CRO: Block diagram, working and
energy of 1Ø & 3Ø load.
applications.
Signal generator: Block diagram, working
and uses.
Energy meter (Attraction type, Quadrant
type.)
Digital Energy meter (single phase &
three phase).
of orthographic into
isometric drawing.
Identification of transistors.
Identification of terminals,.
Testing of Transistors.
Plot the characteristics of transistors
Drawing of B.I.S/I.S.I. symbols
for Electronic devices
Drawing of half wave, Full
wave and Bridge circuits.
Identification and connection of signal
generator (Function generator)
7-11
(CB, CE & CC).
Assemble and testing of a single stage
Amplifier and checking with an
oscilloscope.
Assemble & testing of power amplifier.
Assembling & testing of I.C Amplifier
810. Assemble & testing of oscillator
circuit.
Assembling & testing of various Op.
Amp. Circuits, applications and timers.
Multivibrators (Transistor & I.C.).
ELECTRONIC CIRCUITS- TRANSISTOR
AMPLIFIERS, OSCILLATOR CIRCUITS, OPAMP & TRIGGERING CIRCUITSExplanation, working principle of a
transistor- Types of transistors
Characteristics of transistors. Biasing of
transistors. Configuration & use of
transistor. Specification and rating of
transistors.
Amplifiers -Explanation of transistor
Amplifiers,
Class A,B & C, Power amplifier.
Oscillator-working principle
Explanation of stages and types of
oscillator.
Multivibrator – applications (Transistor &
I.C. version).
OP-AMP – Working principles and
applications.
Page 26 of 35
Block diagram of C.R.O.,
Signal generator & Function
generator.
Connection diagram of Full
wave, half wave & bridge
rectifier.
Drawing circuits for a single
stage
Amplifiers and Multi stage
Amplifies and types of
signals.
of stresses, Hooke’s law,
young’s modulus of elasticity,
ultimate stress, working stress,
Factor of safety, stress-strain
graph, Modulus of rigidity ,
poison’s ratio, bulk modulus,
relationship between three
module for a given material.
Applied problems
ALGEBRA: Introduction,
Algebraic symbols. Add,
Subtract, multiplication &
division of expressions
involving algebraic symbols.
Simple Equations&
transpositions problems.
Standard algebraic formulae,
Proofs.
Simultaneous Equations with
two unknown Quantities.
Factorization, Quadratic
Equations, Related problems.
ROTATIONAL MOTION OF
BODIES: Rotational motion,
angular velocity, acceleration,
Radius of gyration.
MENSURATION:Introduction, Areas & perimeter
of Square, Rectangle,
Parallelogram, Rhombus, Circle,
Triangle, Pentagon, Hexagon,
Circle sector, Segment of a
circle, Ellipse, Length of belts,
Area of a irregular surfaces.
12-14
15 -18
Construction & testing of simple circuits
containing U.J.T. for triggering.
Construction & testing of FET as an
amplifier.
Construction & testing of Power control
circuits by S.C.R., Diac, triac, & I.G.B.T.
Demonstration on DC/AC power
control using transistor/thyristor.
Demonstration of voltage stabilizer &
UPS.
Demonstration of DC/AC motor drives,
speed control etc. Uses of SCR and
other modern semiconductor devices in
controlling speed of motors and in
changing the direction of rotation of
motors.
Demonstration on power supply
stabilizer.
Demonstration of DC /AC. Motor
Drives.
THYRISTORS, AC/DC DRIVES, VOLTAGE
STABILISERSExplanation and working principle and
practical applications of U.J.T., F.E.T.,
S.C.R. Diac, Triac, power MOSFET, G.T.O &
I.G.B.T. D.C / A.C Power control using
power transistor, thyristor. Voltage
stabilizer, U.P.S.-Construction details of
basic circuit, operation, online & offline
UPS. DC / AC motor drives using
transistor/thyristor.
Power Supply Stabilizer, Ferro resistant
circuit. DC / AC motor drives using
Thyristor/Transistor control.
Drawing of circuits containing Area of four walls, Length of
longest pole placed in a room.
U.J.T. F.E.T. & Simple power
Geometrical figures etc.
control circuits.
Properties of lines, angles,
triangles & circles. Radius of
Block diagram of UPS.
largest hole that can be inscribed
in a given triangle.
Testing of I.C. Logic gates and
combinational circuits.
Sequential circuits-Flip Flops, Registers
& Counters using digital ICs.
Demonstration of simple programs on
8085 microprocessor & 8051 microcontroller & applications.
Demonstrate the parts of PLC & verify
the various PLC programs.
Ladder logic program for AND, OR,
NAND, NOR, XOR gates etc.
Ladder logic programming- Latch &
Unlatch instructions, Timers &
Digital Electronics –Number system, logic
gates and combinational circuits,
Sequential circuits-Flip Flops, Registers &
Counters.
Memory devices-Definitions of RAM,
ROM, PROM, EPROM, EEPROM & Flash.
Free hand drawing of Logic
gates and circuits.
Introduction to 8085 microprocessor,
architecture, programming model &
instruction set
Architecture of 8051 micro-controller &
instruction set.
Page 27 of 35
Area of rectangles, Squares,
Parallelogram, Rhombus,
Trapezium, Triangles, Circles,
regular polygons. Simple
Problems on lines, angles,
triangles & circles - Area,
perimeter calculations.
Architecture of 8051 & 8085.
Volumes of solids- Cube,
Rectangular Solid, Cylinder,
Hemisphere and Volume of
Hollow sphere, Hollow cylinder,
Cone, Frustum of cone,
Hexagonal bar, any pyramid.
Frustum of pyramid.
FRICTION:-Meaning of
friction, Examples, Applications
of friction, Limitation laws of
friction, Co-efficient of friction,
Angle of friction, Applied
problems.
19-22
counters.
Traffic light control, Star delta starter,
Speed control of DC motor.
PLC (Programmable Logic Controllers)
Block diagram, Parts of PLC, hardware
connection, Input – Output devices, Ladder
logic program. Timers & counters.
Demonstration on alternators, voltage
building, load characteristics & voltage
regulation.
Practice on installation, running and
maintenance of Alternators.
Practice on starting ,running, parallel
operation to bus bar,
ALTERNATOR, AC MOTORS, STARTERS &
MAINTENANCE.
Explanation of alternator, parts, prime
mover, types, coil span, breadth factor,
EMF equation, regulations, phase
sequence, specification of alternators and
brushless alternator. Parallel operation &
efficiencies. Trouble shooting, Automatic
Voltage Regulator. Numerical problems.
SYNCHRONOUS MOTOR – Construction &
Working principle, effect of change of
excitation and load. Application in industry
in power factor improvement.
Synchronous motor:
Study the effect of changing field
excitation and Power factor correction
of Inductive load.
Induction Motors - Study the parts of
Squirrel cage and Slip ring Induction
motor.
Measurement of slip, P.F. at various
loads.
Practice on connection of
D.O.L Starter, Star /Delta starter,
Autotransformer & resistance type
starter, starting, running & speed
control & D.O.R. change.
23
Trouble shooting & preventive
DENSITY& RELATIVE
DENSITY:-Forms & properties
of matter. The molecule &
atoms. Difference between mass
& weight. Density of solids &
liquids. Specific gravity.
Diagram of parallel operation of
alternators (both dark lamp &
bright lamp method).
Archimedes principle. Relation
between specific gravity &
density, Related problems.
Schematic circuit diagrams of
D.O.L., Star-delta, resistance
starter & auto transformer
starters.
DIGITAL ELECTRONICS:
NUMBER SYSTEM - Decimal
& Binary (base two system),
Hexa decimal (base 16
system).BCD code.
Panel wiring circuit diagram for
3 phase AC induction motor
with star-delta starter & suitable
meters.
Induction motor – Construction &
Working principle - Squirrel Cage
Induction motor , Slip-ring induction
motor & 2 speed induction motor.
Characteristics & applications, Starting
and speed control.
Starters-D.O.L Starter, Star /Delta starter,
Autotransformer starter & resistance type
starter.
Numerical problems.
MACHINE MAINTENANCE: Concept, types
Page 28 of 35
-do-
Conversion from decimal to
maintenance of motors, starters &
controls.
of maintenance. Trouble shooting &
Preventive maintenance of motors,
starters & controls.
24-26
binary & Binary number system
to Decimal. Related problems.
REVISION & TEST
Syllabus for the Trade of “Electrician”
Duration : Six Month
Fourth Semester
SEMESTER-IV OPERATION & MAINTENANCE OF SUBSTATION
Week
No.
1-3
Trade Practical
Trade Theory
Engineering Drawing
Assembly of a Dry cellElectrodes-Electrolytes. Grouping
of Dry cells for a specified voltage
and current, Practice on Battery
Charging, Preparation of battery
charging circuit,
Testing & Installation of batteries.
Charging of a Lead acid & Nickel
iron batteries, preparation &
filling of electrolyte- Testing of
discharged and fully charged
battery.
Routine care & maintenance of
batteries
BATTERIES-TYPES, TESTING &
MAINTENANCEChemical effect of electric current-Principle
of electrolysis. Faraday’s Laws of electrolysis.
Electro chemical equivalents. Explanation of
Anodes and cathodes. Primary cell &
secondary cell such as voltaic, leclanche,
Daniel & dry cell.
Lead acid & Nickel iron cell-construction,
discharging & methods of chargingPrecautions to be taken & testing equipment,
Rechargeable dry cell, description advantages
and disadvantages.
Care and maintenance of cells
Connection diagram for
battery charging panel board
with D.C. Shunt generator
with details of panel board.
Page 29 of 35
Graphical symbols used in
electric technology, ckt.
Elements.
Circuit diagram of panel
board layout of electroplating
generator with ISI standard.
Vocational Science and
Calculation
HEAT TREATMENT:Function of heat treatment,
Critical temperature. Process of
heat treatment-Annealing,
Normalizing, Hardening,
Tempering, Case Hardening etc.
4-8
9&10
Identification of types of
transformers.
To test / check the polarity of
single phase transformer.
Insulation Testing of single phase
and Three Phase transformers.
Conducting No-load/O.C. & short
circuit tests.
Connection of transformers efficiencies of transformers,
parallel operation of transformer.
Maintenance of transformer
equipments such as: - Oil gauge,
Tap changer, Bushes, Breather,
Earth fault relay, Protective relay
etc.
Replacement of oil and testing of
its die-electric strength .
Recharge the silica gel in
breather.
Making up a straight splice for
different cables.
Practice of lying of cable in
trenches /pipe.
Grouping of cells of specified voltage &
current, Sealed Maintenance free Batteries,
Lead Acid & Nickel iron batteries, general
defects & remedies.
Concept of 24/48/110/220V D.C. auxiliary
supply in sub-stations. Power & capacity of
batteries. Efficiency of batteries.
TRANSFORMERS –
Power Transformer – Its construction,
working principle, E.M.F. equation, their
connections. Regulation and efficiency,
parallel operation of transformer,Cooling of
transformer, S.C. & O.C. tests.
Specifications, problems on e.m.f. Equation,
transformation ratio, regulations and
efficiency. Characteristics of ideal
transformer.
Construction of core, winding shielding,
auxiliary parts breather, conservator.
buchholtz’s relay, other protective devices.
Transformer oil testing and Tap changing off
load and on load. Transformer bushings and
termination. Auto transformer- Its
construction, working, performance & uses.
Graphic symbols for Rotating
m/c’s and Transformers
Internal diagram of 3Ø power
transformer.
Exercises on Blue print
reading of connection to
motors through Ammeter,
voltmeter & K.W. meters.
Exercises on Blue print
reading, tracing the wiring
diagram of an alternator &
reproducing it in proper
sequence with protective
equipment sketching the
synchronizer connections.
DISTRIBUTION OF POWER, UG & OHFree hand sketching of
Alternating current, Direct current.
sectional view of pin type
i. By Over Head lines.
insulator.
ii. By underground lines
Mechanical aspects of overhead line:
i. Conductor materials their shapes, size,
current density, tensile strength etc.
ii.Insulator materials, their dielectric strength
etc.
Page 30 of 35
ATMOSPHERIC
PRESSURE: Introduction,
Atmospheric pressure, Absolute
pressure, unit, Pressure at a
depth in a liquid, Gauge
pressure and vacuum pressure.
How to measure atmospheric
pressure and pressure inside the
boiler, simple Barometer ,
Boyle’s law Charles’s law ,
Pascal’s law. Some examples.
GRAPH: Introduction, Plotting
of point, origin, horizontal axis,
vertical axis, abscissa, ordinate,
co-ordinate. Reading and
plotting of simple graph.
Solving Equation of two
variables by graph .The
relationship between two terms
by graph and finding the
unknown term with the help of
known term.
11-17
iii.Pole and Towers, their shape, size and
utility
iv.Guards, their necessity in overhead lines
and types.
Electrical aspects of overhead line:
i. Resistance of overhead line
ii. Inductance of overhead line
iii. Capacitance of overhead line
iv. Effect of earth
v. Formation of corona. & Power loss due to
corona and their remedies.
Identify & test fuses.
SWITCHGEARS (SUBSTATION EQUIPMENTS)
Practice connection of contactors, - Fuse / cut out / kit Kat – function,
MCB& MCCB.
characteristics, and materials.
H.R.C Fuses – application.
Practice connection & testing of
Contactors – Miniature circuit breakers &
different types of relays over
Moulded Case circuit breakers.
voltage, under voltage, over
Relays: their types, viz. over voltage, under
current, earth fault etc
votage, over current, earth fault relay, their
operation, setting, resetting and maintenance.
Practice connection & operation
of
Substation Equipments- Circuit Breakers: circuit breakersi. Oil circuit breaker, its construction, working
Oil circuit breaker
and installation.
Air circuit breaker
ii. Air blast circuit breaker, its construction,
Gas filled circuit breaker, SF6
circuit breaker, & vacuum circuit working and installation.
iii. SF6 circuit breaker, its construction,
breaker.
working and installation.
iv. Vacuum circuit breaker, its construction,
working and installation, their voltage grade,
utilization & current carrying capacity etc.
Horn Gap Switches/ Air break switch,
Disconnect Switch, Grounding Switch , Surge
Arrestors, Current Limiting Reactors - Its
Page 31 of 35
Sketching indicating
instruments. Drawing the
diagram of typical marking
plate of a distribution
transformer. Typical wiring
diagram for drum and
controller operation of A.C.
wound rotor motor.
Layout diagram of a
substation.
Sketching different shapes of
coils, Sketches indicating
possible faults in stator
winding.
Draw the development
diagram of AC 3 phase &
single phase motor winding.
CENTRE OF GRAVITY:
Meaning of C.G, Centroid,
Methods of finding out center
of gravity of figures, C.G of
certain geometrical figures,
Simple experiments for
determination, examples.
SIMPLE MACHINES:
Simple machines, Effort, Load ,
Mechanical advantage, Velocity
Ratio, Output &Input ,
Efficiency of machines,
relationship between efficiency
,V.R,M.A.
Practice of fixing lightening
arrestors and lightening
conductors (Horn gap).
Connections for measurement of
energy through C.T. & P.T.
Trouble shooting & Maintenance
of switch gears, relays, circuit
breakers, instrument
transformers
18&19
20-22
construction details, working and use on HT
& LT lines.
Instrument Transformers- Current
Transformer, Potential Transformer, Their
Construction, working and uses
Protection of high & medium voltage system
Protective devices:
i. Fused cut outs
ii. Reclose circuit breaker.
iii. Sectionalizer
Corona, Lightning arrestor/lighting
conductor, Horn gap.
Single line diagram of
substation feeders.
Connection diagram of typical
overload current relays.
Key diagram of a power
station.
Central controlling panel.
Trouble shooting & Maintenance of switch
gears, circuit breakers, instrument
transformers etc
TYPES OF SUBSTATIONS- INDOOR, OUTDOOR
Earthing practice for substation.
& POLE MOUNTING
Substation construction:
Measurement of earth resistance. i. Outdoor and Indoor substation.
ii. E.H.T. substation
iii. H.T. substation
iv. Medium & low voltage substation (Pole
Visit & observation of Switching
station /Substation /MUSS/MRS. mounting type)
Filling up the cable-jointing box.
UNDERGROUND CABLE-TYPES, JOINTS,
Jointing of cables in lead sleeves. TERMINATION & TESTING
Jointing of cables in epoxy, XLPE Underground cables, their construction, types
& heat shrinkable cables.
and uses as: Termination of cable conductor.
(A) For high voltage transmission lines.
Detection of faults (open circuit
i. Oil filled cables
and short circuit) in cable and
ii. High pressure cables
rectify.
iii. Gas filled cables
iv. H.S.L. type cable etc.
Demonstration & use of cable
Page 32 of 35
-Do-
Schematic diagram of
11/33KV, 33/66KV & MUSS
(Master unit sub-station).
Simple machines like Winch,
pulley block, wheel
&compound axle, simple
pulley, simple wheel & axle,
screw jack. V.R calculations.
Loads: Examples a simple
supported load
fault locater.
23
24-26
(B) For low voltage transmission (PILC,
PILCSTA, XLPE, heat shrinkable etc.)
(C) Submarine cables
Cable jointing, purpose of cable joints and
techniques of joints. Study the cable fault
locater & Faults in underground line &
overhead lines and their methods of
rectification.
Industrial training OR Project work preferably in cross sectoral trades
REVISION & TEST
LIST OF TOOLS & EQUIPMNT FOR SEMESTER-III &IV
FOR THE TRADE OF “ELECTRICIAN”
(Unit Size : 20)
Page 33 of 35
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NAME OF TOOLS & EQUIPMENT
Current transformer 100-50/ 5 or1A (Secondary wound) burden 5VA/15VA, class-1/0.5
Potential transformer 440V/110V class-1, burden 50VA
Inverter 1 KVA Input 12 volt DC, Output 220 volt AC with 12V battery
Voltage stabilizer- Input 150 – 230 volt AC, Output 220 volt AC
Over voltage relay, electro-mechanical type (portable)
Over /Under voltage Static relay
Starters for 3-phase, 400 V, 50 cycles, 2 to 5 H.P. A.C. motors
a) Direct on line starter
b) Star delta starter with manual, semi-auto and automatic
c) Auto transformer type starter
Motor generator (DC to AC) set consisting of –
Motor shunt 5 HP, 440 Volts with starting compensator and switch directly coupled to generator AC. 3.5 KVA, 400/230 Volts, 3-Phase, 4 wire, 0.8 PF,
50cycles with exciter and 1 switch board mounted with regulator, circuit breaker, ammeter, voltmeter, frequency meter, knife blade switch and fuses
etc. Set complete with cast iron bed plate, fixing bolts, foundation bolts and 1 no. flexible coupling.
Motor AC squirrel cage, 3-phase 400 volt, 50 cycles,5 HP with star delta starter and triple pole iron clad switch with fuse.
Motor AC phase-wound slip ring type 5 HP, 400 volts, 3-phase, 50 cycles with starter and switch.
Stepper motor with digital controller
Transformer single phase, 1 K.V.A., 230 / 115-50-24-12 volts, 50 cycles core type, air cooled.
Transformer three phase, 5 K.V.A., 440/230 volts, 50 cycles, delta / star, shell type oil cooled.
Variable auto transformer 0-250 V, 8A.
Oscilloscope –Dual Trace,30 MHZ
Function Generator 10MHz
Discrete component trainer (For diode & transistor circuits)
Linear I.C.Trainer
Digital I.C.Trainer
Oil testing Kit
Battery charger with variable output 1 KW
Hydrometer
A.C.B. 3Ø, 440V, 3pole, 50Hz.
M.C.C.B. 3Ø, 440V, 4pole, 50Hz, 100A
Page 34 of 35
QUANTITY
2 each
2 no.
1 no.
1 no.
1 no.
1 no.
1 no.
1 each
1 no.
1 set
1 no.
1 no.
1 no.
3 no.
2 no.
2 no.
1 no.
1 no.
1 no.
2 no.
2 no.
1 no.
1 no.
1 no.
1 no.
1 no.
25
26
27
28
29
Thyristor/IGBT controlled D.C. motor drive 1 HP with tacho-generator feedback arrangement.
Thyristor/IGBT controlled A.C. motor drive with VVVF control ,3 Phase 2 HP
PLC trainer kit with 6/4 Input/output micro type
8051 Microcontroller kit with simple application.
8085 microprocessor kit with simple application.
Page 35 of 35
1 no.
1 no.
4 no.
4 no.
4 no.