The Tamil Nadu Assistants Engineer Industries Examination is Conducted by the TNPSC for the Recruitment of the Assitant Engineers

Eligibility Criteria

Age Criteria :
One may be Completed the Age of 18 years

Qualification : Degree in Mechanical or Production or Electrical or Automobile or Chemical Engineering or Chemical Technology of any University or Institution recognized by the University Grants Commission

Procedure Of Selection

Written Examination
Oral Test

the Syllabus of the Assistant Engineer Exam of Electrical Engineer is as follow

UNIT I Electrical Circuits and Analysis

Ohm’s Law – Kirchoff’s laws – Resistors in series and parallel circuits – Mesh current and node voltage method of analysis for D.C and A.C. circuits – Phasor Diagram – Power - Power Factor and Energy - A.C networks - sinusoidal steady-state analysis -

resonance in electrical circuits - concepts of ideal voltage and current sources -
network theorems - Transient response of RL, RC and RLC Circuits using Laplace

transform for DC input and A.C. with sinusoidal input – Characterization of two port networks in terms of Z,Y and h parameters - Three phase circuits balanced / unbalanced voltage sources – analysis of three phase 3-wire and 4-wire circuits with star and delta connected loads - balanced & un balanced – phasor diagram of voltages and currents – power and power factor measurements in three phase circuits.

UNIT II Electromagnetic Fields
Electric potential – Electricfield in free space, conductors - dielectrics - Dielectric
polarization - Dielectric strength - ElectricBoundary conditions Poisson’s and Laplace’s

equations, Capacitance, Energy density - Lorentz force, magneticfield intensity (H) –
Biot–Savart’s Law - Ampere’s Circuit Law – H due to straight conductors, circular loop,

infinite sheet of current, Magnetic flux density (B) – B in free space, conductor, magnetic materials – Magnetization, Magnetic force,Torque, Inductance, Energy density –

Faraday’s law – Transformer and motional EMF – Displacement current - Maxwell’s
equations (differential and integral form)-magnetic circuits- Electromagnetic wave
generation and equations – Wave parameters - velocity, intrinsic impedance, propagation

constant – Waves in free space, lossy and lossless dielectrics, conductors- skin depth -
Poynting vector.

TNPSC Assistant Engineer syllabus Electrical Engineer


TAMIL NADU PUBLIC SERVICE COMMISSION
POST OF PRINCIPAL / ASSISTANT DIRECTOR (TRAINING)
INCLUDED IN THE TAMIL NADU EMPLOYMENT AND TRAINING SERVICES
ELECTRICAL & ELECTRONICS ENGINEERING (DEGREE STANDARD)
UNIT I Electrical Circuits and Analysis
Ohm’s Law – Kirchoff’s laws – Resistors in series and parallel circuits – Mesh current
and node voltage method of analysis for D.C and A.C. circuits – Phasor Diagram –
Power - Power Factor and Energy - A.C networks - sinusoidal steady-state analysis -
resonance in electrical circuits - concepts of ideal voltage and current sources -
network theorems - Transient response of RL, RC and RLC Circuits using Laplace
transform for DC input and A.C. with sinusoidal input – Characterization of two port
networks in terms of Z,Y and h parameters - Three phase circuits balanced /
unbalanced voltage sources – analysis of three phase 3-wire and 4-wire circuits with star
and delta connected loads - balanced & un balanced – phasor diagram of voltages
and currents – power and power factor measurements in three phase circuits.
UNIT II Electromagnetic Fields
Electric potential – Electric field in free space, conductors - dielectrics - Dielectric
polarization - Dielectric strength - Electric Boundary conditions Poisson’s and Laplace’s
equations, Capacitance, Energy density - Lorentz force, magnetic field intensity (H) –
Biot–Savart’s Law - Ampere’s Circuit Law – H due to straight conductors, circular loop,
infinite sheet of current, Magnetic flux density (B) – B in free space, conductor, magnetic
materials – Magnetization, Magnetic force, Torque, Inductance, Energy density -
Faraday’s law – Transformer and motional EMF – Displacement current - Maxwell’s
equations (differential and integral form)-magnetic circuits - Electromagnetic wave
generation and equations – Wave parameters - velocity, intrinsic impedance, propagation
constant – Waves in free space, lossy and lossless dielectrics, conductors- skin depth -
Poynting vector.
2
UNIT III Electrical Machines
Single phase transformer - equivalent circuit, phasor diagram, OC & SC tests, regulation
and efficiency - three phase transformer-connections - auto transformer; principles of
energy conversion, windings of rotating machines Principle and operations Types and
Design of DC,AC Motors & Generators – Speed Torque Characteristics -starting and
speed control, armature reaction and commutation –Plugging, dynamic and
regenerative braking- testing and efficiency - three phase induction motorsperformance
characteristics, starting and speed control - single-phase induction
motors - synchronous generators - performance, regulation - synchronous motorsstarting
characteristics, applications, synchronous condensers - fractional horse power
motors - permanent magnet and stepper motors.
UNIT IV Power Systems
Electric power generation – thermal, hydro, nuclear; transmission line parameters -
steady-state performance of overhead transmission lines and cables and surge
propagation - distribution system, insulators, bundle conductors, corona and radio
interferences effects - per-unit quantities - bus admittance and impedence matrices -
load flow - voltage control and power factor correction - economic operation -
symmetrical components, analysis of symmetrical and unsymmetrical faults -
principles of system stability - swing curves and equal area criterion.
UNIT V Protection And Switchgear
Causes of over voltages and its effects on power system – Lightning, switching surges and
temporary overvoltages, Corona and its effects – Reflection and Refraction of Travelling
waves - Protection against overvoltages - Principles and need for protective schemes –
Methods of Neutral grounding – Insulation Coordination - Operating principles, construction
& types of Electromagnetic Relays - the Universal relay – Torque equation – R-X diagram
–Overcurrent, Directional, Distance, Differential, Negative sequence and Under frequency
relays, Static relays – Phase, Amplitude Comparators – Synthesis of various relays using
Static comparators - Apparatus protection - Current transformers and Potential
transformers and their applications in protection schemes - Overcurrent protection,
transformer differential protection, distant protection of transmission lines - Circuit breakers
- Physics of arcing phenomenon and arc interruption - DC and AC circuit breaking – restriking
voltage and recovery voltage - rate of rise of recovery voltage - resistance
switching - current chopping - interruption of capacitive current - Types of circuit breakers –
air blast, air break, oil, SF6 and vacuum circuit breakers – comparison of different circuit
breakers – Rating and selection of Circuit breakers.
3
UNIT VI Control & Instrumentation
Principles of feedback - transfer function - block diagram - steady-state errors – stability -
Routh and Nyquist criteria - Bode plots – compensation - root loci - elementary state
variable formulation - state transition matrix and response for Linear time Invariant
systems - Measurement of R, L and C-Bridges, potentiometers & galvanometers -
Measurement of voltage, current, power, power factor and energy- Instrument
transformers, Q meter, Waveform Analysers – Digital voltmeter, multimeter - Time, phase
and frequency measurements – Elements of data acquisition system – A/D, D/A
converters – Oscilloscope – display and recording devices – Noise and interference in
Instrumentation.
UNIT VII Power Electronics and Drives
Semiconductor power devices-diodes – transistors – thyristors – triacs – GTO -
MOSFETs and IGBTs - static characteristic and principles of operation - triggering circuits
- phase control rectifiers - bridge converters - fully controlled and half controlled -
principles of choppers and inverters - basic concepts of adjustable speed dc and ac
drives.
UNIT VIII Digital Electronics
Digital Logic Theory - Number systems - Combinational logic circuits - Minimisation of
Boolean functions-IC families-Arithmetic circuit - Multiplexer - decoders-Sequential
circuits-Flip flops – counters - shift registers - Schmitt trigger - timers and multivibrators -
Microprocessor - General 8 bit microprocessor Architcture-8085, 8086 processor –
Architecture, Memory, I/O interfacing, Instruction set, Addressing modes, Timing diagram
& delays, Machine cycles, Interrupts, counters, Assembly language programming –
Microcontrollers - 8 bit microcontroller – 8051 architecture, bus configuration, Instruction
sets, programming &Applications.
UNIT IX Communication Engineering
Modulation and demodulation systems – Types of transmission lines – losses – standing
waves – Ground wave and space wave propagation – Digital communication concepts –
Data Communication codes - serial and parallel interface – Network protocol – Types of
satellites – Advantages of optical fibre communication.
4
UNIT X Computer Systems & Programming
Abstract Data Types (ADT) - Stack ADT – Queue ADT – circular queue implementation –
TREE STRUCTURES – Tree ADT – tree traversals –Binary Search Tree ADT – expression
trees – AVL trees – Binary Heaps – B-Tree – Hashing – Separate chaining – open
addressing – Linear probing Graphs Definitions – Topological sort –Algorithm Design And
Analysis-Greedy algorithms – Randomized algorithms – algorithm analysis - Object
oriented programming concepts - Operator overloading- Exception handling - Introduction
to JAVA bytecode - virtual machines – objects – classes – Javadoc – packages – Arrays –
Strings - Inheritance – interfaces and inner classes - exception handling – threads -
Streams and I/O - operating system structures – system calls – system programs - Process
concept – Process scheduling and Synchronisation – Storage Management and File
Systems - Input/output device Interfave.