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DGET NCVT ITI Electrician trade theory NIMI syllabus semester 3 online


AITT OVERVIEW
SUBJECT PAPER NUMBER PART NO. of QUESTIONS TOTAL MARKS
TRADE THEORY PAPER -1 A 50 150
WORK SHOP CAL & SCIENCE PAPER – 2 A 25 75
ENGINEERING DRAWING PAPER – 2 B 25 75
EMPLOYABILITY SKILLS PAPER- 1 B 2 50
ELECTRICIAN SEMESTER 3 TRADE THEORY SYLLABUS

TOPICS COVERED IN TRADE THEORY SEMESTER 3 ELECTRICIAN 

DGET NCVT ITI Electrician trade theory NIMI syllabus semester 3 online


  • Three phase Induction motor
  • Working principle –Production of rotating magnetic field, Squirrel Cage Induction motor, Slipring induction motor.
  • Construction , characteristics and
  • Speed control, Slip & Torque .
  • Control & Power circuit of starters
  • O.L Starter, Star /Delta starter,
  • Autotransformer starter, Rotor resistance starter, etc
  • Single phasing preventer.
  • Losses & efficiency.
  • Application of Induction Motor
  • Care, Routine & preventive maintenance.
  • Single phase induction motor-
  • Working principle, different method of starting and running (capacitor start, permanent capacitor, capacitor start & run, shaded pole technique).
  • FHP motors, Repulsion motor, stepper motor, Hysteresis motor, Reluctance motor.
  • Application of Single phase induction motor
  • Universal motor-advantages, Principle, characteristics, applications in domestic and industrial appliances
  • Application of Universal motor.
  • Alternator
  • Explanation of alternator, types of prime mover, efficiency, regulations, phase sequence, Parallel operation.
  • Specification of alternators and Brushless alternator.
  • Verify the effect of changing the field excitation and Power factor correction of Industrial load.
  • SYNCHRONOUS MOTOR –
  • Working principle, effect of change of excitation and load.
  • V and anti V curve.
  • Cause of low power factor.
  • Method of power factor improvement.
  • Rotary Converter- Inverter, M.G. Set description, Characteristics, specifications-running and Maintenance.
  • Solid state controller and Invertors.
  • TRANSFORMER Winding , Small Transformer winding techniques
  • DC machine Winding– Armature winding terms, pole pitch, coil pitch, back pitch, front pitch
  •  Lap and Wave winding , Progressive and retrogressive Winding, developed diagram.
  • Growler construction, working & application.
  • ACmachine Winding—Motor winding
  • terminology – classification of conducting and insulating materials used in winding
  • Types and methods of winding in single and three phase motors.
  • Stator winding terms, coil side, end coil and grouping of coils.
  • Connection to adjacent poles, connected stator winding
  • alternate pole connection, developed diagram.
  • Illumination, Laws of Illuminations, terminology used
  • Illumination factors, intensity of light
  • importance of light, human eye factor,units.
  • Types of illumination
  • Type of lamps
  • Neon sign Halogen, Mercury vapour,
  • sodium vapour, Fluorescent tube, CFL, LED, Solar lamp & photo cell applications,
  • Decoration lighting, Drum Switches, efficiency in lumens per watt, Calculations of lumens.
  • Estimating placement of lights, fans and ratings.
  • Industrial wiring. Code of practice and relevant span.
  • Wiring of electric motors, control panel, etc.
  • Types, specifications, advantages of different types of circuit brackets construction and maintenance.
  • Working principle and construction of domestic and agricultural appliances-their maintenance.
  • Complete House-wiring layout.
  • Splitting load wire in accordance with NEC I.E.E.
  • Multi-storeyed system.
  • Fault finding and trouble shooting.

source: http://www.dget.nic.in/content/innerpage/trade-syllabus.php

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