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SYLLABUS

Unit - 1

Basic Electrical Engineering Ohms and Kirchhoff’s Laws, Star/delta transformation, Network theorems, Power and energy, Heating effects of electric current, Magnetic effects, Electromagnetic induction, Electrostatics, Types of electrical engineering materials – Conducting, Semi-conducting, Magnetic, Insulating, Di-electric – Properties and uses.

Unit - 2

D.C. Machines, Batteries & Measuring Instruments D.C Generators: Construction, Operation, Types, EMF equation, Windings, Characteristics, Efficiency and parallel operation. D.C Motors: Principle of operation, Back EMF, Torque equation, Types, Armature reaction. Characteristics, Starters, Speed Control, Losses, Efficiency and testing, Batteries. Measuring Instruments: Classification, Principle of operation of moving coil, Moving iron, Dynamometer type, Induction type meters, Instrument transformers, Induction type energy meter, M.D indicator, TRI VECTOR meter, PF meter, Frequency meter, Measurement of resistance, Transducers and sensors – Types, Thermistor, Thermocouple, Pressure transducers and strain gauges.

Unit - 3

A.C Circuits and Transformers A.C Circuits: Fundamentals, Series and parallel R-L-C circuits, Resonant circuits, Polyphase circuits, Measurement of power by 2 wattmeters. Transformer: Single-phase transformer, Construction, Operation, Equivalent circuit, Regulation, Efficiency, Testing and parallel operation, Accessories of transformers and cooling. Three-phase transformers, Auto-Transformers.

Unit - 4

A.C Machines Alternators: Construction, Operation, EMF equation, regulation, Testing and parallel operation. Synchronous Motors: Operation and performance, Effects of excitation, ‘V’-curve and inverted ‘V’- curve, Methods of starting and uses. Three-Phase Induction Motors: Construction, Principle of Operation, Torque equation, Slip-torque characteristics, Losses, Efficiency, Speed control, Starters, Double-cage motor. Single-phase Induction Motor: Types, Principle of operation, Applications. Single-phase commutator motors: Types, Principle of operation and applications.

Unit - 5

Power System Generation & Protection Generating Stations: Working, Components, Comparison of Thermal, Hydel, Nuclear and gas power stations. Pollution control, Combined working, Power stations auxiliaries, Characteristic curves and important terms, Types of tariffs, Power factor correction and economy. Power Systems Protection: Circuit breakers – Types, Principles of operation and uses, Current limiting reactors, Relays – Classification, Principle of operation of induction type over current relay, Directional and non directional relays, Differential relays and distance relays, Protection of alternators, Transformers, Bus-bars, Transmission lines, Lightening arrestors, Neutral grounding.

Unit - 6

Transmission and Distribution Transmission and Distribution: Types of supply systems, Transmission line parameters, Inductance and capacitance, Performance of short and medium lines, Regulation, Ferranti effect, Corona, Basic concepts of HVDC transmission, Advantage and disadvantages of HVDC Transmission. Components of lines, Supports, Conductor spacing, Ground clearance and sag, Insulators, Voltage distribution across the string, String efficiency, Methods of improving string efficiency. Earthing and layout of sub-stations. Cables – Classification, Insulation resistance, Specifications. Distribution – Radial and ring distributors, Variation of load voltage.

Unit - 7

Electric Traction Electric Traction: Systems of train electrification, Speed-time curves for different services, Schedule speed, Tractive effort, Specific energy consumption, Traction system auxiliaries, Traction motor.

Unit - 8

Electrical Estimation Electric Wiring: Tools, Wires, Types of wiring, Accessories, Lamp circuits, Estimating and costing of domestic, Industrial, Power, Irrigation pump sets, Over head lines and 11 kV sub stations, Rural electrification, Departmental tests, Earthing, Maintenance of electrical machines.

Unit - 9

Basic Electronics and Digital Electronics Semi-conductor Devices: N type & P type, Zener diode, PNP and NPN Transistors, Transistor configurations, Characteristics, Power supplies – Half and full wave rectifiers, Filters, Zener diode regulation, Special devices – UJT, FET, LED, SCR, Opto Coupler, Photo diode, Photo Transistor, CRO and Timers. Amplifiers: Types, Principles of operation, Characteristics. Oscillators: Types, Operation and application of each. Digital Electronics: Different numbering systems, Inter conversions Boolean algebra, Logic families, Performance of AND, OR, NOT, NOR, NAND gates, Combinational logic circuits, Sequential logic circuits, Resistors and Memories, A/D and D/A converters.

Unit - 10

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