Unit 1- Basic Electrical Engineering | - Ohms & Kirchhoff’s law, star and delta transformation, network theorems, power and energy, heating effects of electric current, magnetic effects, electromagnetic induction, electrostatics, batteries, types of electrical engineering materials (conducting, semi-conducting, magnetic, insulating), dielectric (properties & uses)
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Unit 2- DC Machines, Batteries, and Measuring Instruments | - DC Generators: Construction, operation, types, emf equation, windings, characteristics, efficiency, and parallel operation
- DC Motors: Principles of operation, back emf, torque equation, types, armature reaction, characteristics, starters, speed control, losses, efficiency, and testing
- Measuring Instruments: Classification, principles of operation of moving coil, moving iron, dynamometer type, induction type meters, instrument transformers, induction type energy meter, measurement of resistance, transducers & sensors (types, thermistor, thermocouple, pressure transducers, strain gauges), electronic and digital instruments
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Unit 3- AC Circuits and Transformers | - AC 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
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Unit 4- AC Machines | - Alternators: Construction, operation, emf equation, regulation, testing, and parallel operation
- Synchromous 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
- Single-Phase Induction Motor: Types, principle of operation, applications, single-phase commutator motors (types, principle of operation, and applications)
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Unit 5- Power System Generation and Protection | - Generating Stations: Working, components, comparison of thermal/ hydel/ nuclear/ gas power stations, pollution control, combined working, power stations auxiliaries, characteristics curves and important terms, types of tariffs, power factor correction, and economy
- Power System 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
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Unit 6- Transmission and Distribution | - Transmission and Distribution: Types of supply system, transmission line parameters, inductance and capacitance, performance of short and medium lines, regulations, Ferranti effect, corona, basic concepts of HDVC transmission, advantages 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
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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
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Unit 8- Electrical Estimation | - Electric Wiring: Tools, wires, types of wiring, accessories, lamp circuits, estimating, and costing of domestic/ industrial/ power/ irrigation pump sets, overhead lines, and ii KV sub stations, rural electrification, departmental tests, earthing, maintenance of electrical machines
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Unit 9- Basic Electronics and Digital Electronics | - Semiconductor Devices: N types & P type, zener diode, PNP and NPN transistors, transistor configurations, characterisitcs, power supplies (half and full wave rectifiers), filters, zener diode regulation, special devices (UJT, LED, FET, SCR, Opto Coupler, Photodiode, Photo Transistor, CRO & Timers)
- Amplifiers: Types, principles of operations, characteristics
- Oscillators: Types, operation, and application of each
- Digital Electronics: Different numbering systems, interconversion 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
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Unit 10- Power Electronics and Microcontroller | - Power Electronics Devices: Construction and working of SCR, GTOSCR, DIAC, TRIAC, Volt-ampere characteristics, triggering of SCR using UJT, protection
- Converters, AC regulators, Choppers, Inverters, and Cycloconverters: Types of converters, principles of working, basic principle of working of cyclo converters, speed control of DC motors by using converters and choppers, speed control of induction motor by using AC voltage regulators - V/F control, switched mode power supplies, UPS
- Micro Controllers: Architecture of 8051, instruction set of 8051, programming concepts, peripheral ICS - functions, features
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