Tamil Nadu Public Service Commission Examination Syllabus for Combined Engineering Service (Electrical Engineering) – Code No.169.
Unit –I Electrical Materials
Conductors, Semi-conductors and Insulators – Insulators for electrical and electronic applications – Magnetic materials – Ferro and ferri magnetism – Properties and applications – Dielectric materials – Optical materials – Optical properties of metals, insulators and semiconductors – Photoconductivity – Special semi conductors – Super- conductivity
Unit –II Electrical Circuits
Circuit elements – Kirchoff’s Laws – Mesh and nodal analysis – Network Theorems and applications – Natural and forced response – Resonant circuits – Transient and steady state response for arbitrary inputs – Transfer function – Two-port networks – Elements of two-element network synthesis– Properties of networks in terms of poles and zeros– Three phase circuits.
Unit –III Electro Magnetic Theory
Electric and Magnetic fields – Magnetic Circuits – Faraday’s law of Electro Magnetic Induction – Gauss’s Law and Amperes Law – Fields in dielectrics – Maxwell’s equations – Time varying fields – Plane wave propagating in dielectric and conducting media – Pointing theorem – Transmission lines and Waveguides.
Unit –IV Measurements and Instrumentation
Units and Standards – Error analysis – Measurement of Current, Voltage, Power, Power-factor and Energy – Indicating instruments – Measurement of Resistance, Inductance, Capacitance and Frequency – Bridge measurements – Electronic measuring instruments – Digital Voltmeter and Frequency counter – Transducers and their applications to the measurement of non-electrical quantities like temperature, pressure, flow-rate displacement, acceleration, noise level – Telemetry system – Data acquisition systems – A/D and D/A converters.
Unit –V Control Systems
Mathematical modeling of physical systems – Block diagrams and signal flow graphs and their reduction – Time domain and frequency domain analysis of linear dynamical system – Errors for different type of inputs and stability criteria for feedback systems – Stability analysis using Routh-Hurwitz array – Nyquist plot and Bode plot – Root locus and Nicols chart – Estimation of gain and phase margin – Basic concepts of compensator design – State variable matrix – System modeling and design – Sampled data system – Stability of sampled data system – Elements of non-linear control analysis – Control system components, electromechanical, hydraulic, pneumatic components – Programmable logic controllers – Distributed control systems.
Unit –VI Power Apparatus
D.C. Machines – Construction, Excitation methods – Armature reaction and commutation – Characteristics and performance analysis – Generators and motors – Starting and speed control – Testing – Losses and efficiency. Analysis and Design of Power transformers – Construction and testing – Equivalent circuits – Losses and efficiency – Regulation – Parallel operation – Three- phase transformers – Auto-transformer. Induction Machines – Construction, Principle of operation – Rotating fields – Characteristics and Performance analysis – Circle diagram – Starting and speed control – Single-phase Induction motors – Linear Induction motors – Hysteresis motors – Reluctance motors – Stepper motors. Synchronous Machines – Construction – Operating characteristics and Performance analysis – Efficiency and Voltage regulation – Parallel operation – V and inverted V curves of synchronous motors – Power factor improvement.
Unit –VII Power systems
Types of Power Stations – Hydro, Thermal and Nuclear Stations – Pumped storage plants – Economic and operating factors – Power transmission lines – Modeling and performance characteristics – Voltage control – Load flow studies – Optimal power system operation – Load frequency control – Symmetrical short circuit analysis – ZBus formulation – Symmetrical Components – Per Unit representation – Fault analysis – Transient and steady-state stability of power systems – Equal area criterion – Power system Transients – Power system Protection – Circuit breakers – Relays – HVDC transmission.
Unit –VIII Analog and Digital Electronics
Semiconductor devices – PN junctions – Transistors – FET – Zener, Tunnel, Schottky, Photo diodes and their applications – Rectifier circuits – Voltage regulators – Multipliers – switching behavior of Diodes, Transistors, UJT, SCR, IGBT.
Biasing circuits – Small signal amplifiers – frequency response – Multistage amplifiers – Coupling methods – Large signal amplifiers – Push-pull amplifiers – Feed- back amplifiers – Oscillators – Operational amplifiers – Precision rectifiers – Wave shaping circuits.
Digital logic gate families – Universal gates – Combination circuits for arithmetic and logic operations – Flip-flops – Multivibrators and their applications – Sequential logic circuits – Counters – Registers – Memories.
Power Semiconductor devices – Thyristors – Power transistor – GTOs – Single and three phase AC to DC Converters – Single and three phase AC to AC converters – MOSFET and IGBT based DC to DC Converters and single and three phase inverters. Pulse width modulation – Sinusoidal modulation with uniform sampling – Switched mode power supplies – Speed control of DC and AC motors – Reactive power compensation – Power factor improvement.
Unit –IX Microprocessors and Microcontrollers
Architecture of 8085, 8086, 8088, 8051 and 8097 – Instruction sets – Assembly language programming – Interfacing for memory and I/O – Applications.
Unit –X Communication Systems
Types of modulation – AM, FM and PM – Demodulators – Noise and bandwidth considerations – Digital communication systems – Pulse code modulation and demodulation – Frequency division and time division multiplexing – Satellite Communication – Fibre optic communication – Cellular mobile communication (Block diagram treatment).
REFERENCE BOOKS for TNPSC Combined Engineering Service (Electrical):
- Dekker.A.J, “Electrical Engineering Materials”, Prentice Hall of India.
- Sudhakar.A, Shyammohan.S.P, “Circuits, Network Analysis and Synthesis”, TMH.
- William H. Hayt.Jr, “Engineering Electro Magnetics”, TMH.
- Sawhney.A.K, “A Course in Electrical and Electronic Measurements and Instrumentation”, Wiley Eastern Limited.
- Nagrath.J, Gopal.M, “Control System Engineering”, New Age International Publishers Limited.
- Nagrath.I.J, Kothari.D.P, “Electrical Machines”, TMH.
- Nagrath.I.J, Kothari.D.P, “Power System Engineering”, TMH.
- Jacob Milmann, Arvin Gravel, “Micro Electronics”, McGrawHill.
- RoyChoudhry, Shall Jain, “Linear Integrated Circuits”, Wiley Eastern Limited.
- Rashid.M.H, “Power Electronics”, Prentice Hall of India.
- Ramesh G. Gaonkar, “Micro processor Architecture, Programming and Applications”, Wiley Eastern Limited.
- Kenneth.J.Ayala, “The 8051 Microcontroller Architecture, Programming and Applications”, Pentam International Publishers (India).
- Simon Haykin, “Communication Systems”, JohnWiley.
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