Electrician Trade Theory - Year 2 (ITI)

DC machines, AC single- and three-phase motors, alternators, transformers, motor control and starters, power generation, transmission and distribution, electronics basics and inverters, UPS and PLC fundamentals.

12 MonthsDuration 7Chapters38Topics

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Syllabus · पाठ्यक्रम

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01DC Generators and DC Motors 6 topics

Construction of DC machines
EMF equation and types of DC generators
Principle of DC motor and back EMF
Types of DC motors and characteristics
DC motor starters and speed control
Armature reaction and commutation

02Transformers 6 topics

Principle and construction
EMF equation and turns ratio
Losses and efficiency
Open circuit and short circuit tests
Three-phase transformer connections
Cooling and maintenance of transformers, auto-transformer

03AC Induction Motors 6 topics

Rotating magnetic field
Synchronous speed and slip
Squirrel cage and slip ring motors
Single-phase motors - split phase, capacitor start, ceiling fan
Speed control and reversal
Universal motor

04Alternators and Synchronous Motors 4 topics

Construction and working of alternator
Voltage regulation
Parallel operation and synchronising
Synchronous motor and power factor correction

05Motor Control, Starters and Winding 5 topics

Contactors, relays and timers
DOL, star-delta and auto-transformer starters
Overload and no-volt protection
Control circuits - forward-reverse, sequential
AC and DC winding basics

06Power Generation, Transmission and Distribution 5 topics

Thermal, hydro, nuclear, solar and wind power
Transmission voltages and line components
Distribution systems
Circuit breakers and relays
Substations and protection

07Electronics, Inverters, UPS and PLC 6 topics

Semiconductor diodes and rectifiers
Transistors and amplifiers basics
SCR and power electronics
Inverter and UPS
PLC - parts and ladder logic
Variable frequency drive basics

About

You will be able to

Explain the construction, working, types and characteristics of DC generators and DC motors
Explain transformers - principle, EMF equation, losses, tests and three-phase connections
Explain three-phase and single-phase induction motors, slip and speed control
Describe alternators and synchronous motors and conditions for parallel operation
Explain DOL, star-delta and auto-transformer starters and motor protection
Describe power generation, transmission and distribution systems and protective devices
Explain basic electronics - diodes, rectifiers, transistors - and inverters, UPS and PLC fundamentals

Who it is for

ITI Electrician trainees of Year 2 (NCVT / DGT CTS)
SCVT Electrician trainees, apprentices and candidates for the CBT trade theory exam

What you need

Electrician Trade Theory Year 1 completed

Questions

Which syllabus is followed?

The NCVT / DGT CTS Electrician Year 2 trade theory syllabus. Where your ITI (SCVT) syllabus differs, the centre follows your own syllabus.

Are machine numericals covered?

Yes. Back EMF, turns ratio, synchronous speed, slip and efficiency problems are practised.

Will this help in apprenticeship or jobs?

Yes. Motors, transformers and control panels are the core of maintenance electrician jobs in industry.