AP ECET 2020 is a Common Entrance Test for Diploma Holders and for B.Sc.(with Mathematics as one of the optional subjects) to get admission into B.Tech & Pharmacy. APECET 2020 will be conducted by JNTUA on behalf of the Andhra Pradesh State Council of Higher Education for the academic year 2020-2021
The submission of online applications for ECET Andhra Pradesh started on February 2020
AP ECET 2020 Syllabus for Diploma Holders in Engineering, Diploma Holders in Pharmacy and B.Sc.(Mathematics) Graduates.
AP ECET 2020 Exam will be on 30th April 2020 (Thursday)
AP ECET 2020 Syllabus For Electrical & Electronics Engineering
AP ECET 2020 Syllabus in diploma holders in engineering, diploma holders in pharmacy, B.Sc.(Mathematics) graduates, Common Subjects given in detail.
Electrical & Electronics Engineering Syllabus is for Diploma Holders
UNIT I:- 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, Batteries, Types of Electrical Engineering Materials – Conducting, Semiconducting, Magnetic, Insulating, Di-electric – Properties and Uses.
UNIT II:- D.C. MACHINES, BATTERIES & MEASURING INSTRUMENTS:
D.C. Generators: Construction, Operation, types, EMF Equation, Windings, Characteristics, Efficiency and Parallel operation. DC Motors: Principle of operation, Back EMF, Torque Equation, Types, armature reaction. Characteristics, Starters, Speed Control, Losses, Efficiency and Testing, Battries. 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 III:- 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 IV:- 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 V:-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 VI:- 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 VII: – 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 VIII:- 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 ii KV Sub Stations, Rural electrification, departmental tests, earthing, maintenance of electrical machines.
UNIT IX: 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 X:- POWER ELECTRONICS AND MICRO CONTROLLER Power Electronic 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, working of AC regulators and Choppers. Types of inverters, Principles of working, Basic principle of working of Cyclo converters. Speed control of D.C. Motors by using converters and choppers, Speed control of induction motor by using AC Voltage regulators – V/F Control, Switched mode power supplies (SMPS), UPS. Micro Controllers: Architecture of 8051, instruction set of 8051, programming concepts, peripheral ICS – Function, features.
NUMBER OF QUESTIONS TO BE SET
Electrical & Electronics Engineering
| Unit no | Topics | Marks |
| I | Basic Electrical Engineering | 7 |
| II | D.C. Machines, Batteries & Measuring instruments | _ |
| II | D.C. Generators | 4 |
| II | D.C. Motors | 4 |
| II | Measurements Instruments | 4 |
| II | A.C. Circuits and Transformers | _ |
| III | A.C. Circuits | 5 |
| III | Transformers | 7 |
| IV | A.C . Machines | _ |
| IV | Alternators | 3 |
| IV | Sychronous Motors | 3 |
| IV | Three-Phase Induction Motors | 4 |
| IV | Single Phase Induction Motors | 2 |
| V | Power System generation & Protection | _ |
| V | Generating Stations | 5 |
| V | Power System | 5 |
| VI | Transmission and Distribution | 10 |
| VII | Electrictraction | 8 |
| VIII | Electrical Estimation | 4 |
| IX | Basic electronics and digital electronics | _ |
| IX | Semi-Conductor devices | 3 |
| IX | Amplifiers | 2 |
| IX | Oscillators | 2 |
| IX | Digital Electronics | 4 |
| X | Power Electronics and Micro Controller | _ |
| X | Power Electronics Devices | 4 |
| X | Converters, AC regulators, Choppers, Inverters and Cycloconvertors | 6 |
| X | Micro Controllers | 4 |
| _ | Total | 100 |
MODEL QUESTIONS FOR ELECTRICAL AND ELECTRONICS ENGINEERING
The period during which the power to the traction motor is cut-off is known as
1) Cut-off period
2) Coasting
3) Free running
4) Braking
The slow but continuous rotation of the energy meter even under no load is known as
1) Rotation error
2) creeping error
3) Jumping error
4) free run error
Which of the following is known as Universal gate?
1) AND
2) OR
3) NAND
4) NOT
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