(Autumn Semester)

B Tech (Electrical Engineering): 1st Semester

**EL 101: Basic Electrical Engineering
2 1 1 4 5**

*This course covers basic elements of circuit knowledge, AC fundamentals and basic measuring instruments. The course is aimed at teaching
the students about the basic and fundamental theorems and devices of Electrical Engineering so that the students can take up higher
courses in Electrical, Electronics, Computer engineering, etc. The course includes the topics:*

Engineering Circuit Analysis : Current, Voltage, Power, Circuit elements, Ohm's law, Kirchoff's law, Nodal Analysis, Mesh Analysis, Source transformations, Linearity and Superposition, Thevenin's and Norton's Theorems, Maximum power transfer theorem, Star-Delta and Delta-Star Conversion, Simple RL and RC Circuits, Unit Step Forcing Function, source free RLC Circuits, Sinusoidal Forcing Function, Complex Forcing Function, Phasor Concept, Impedance and Admittance, Phasor diagrams, Response as a Function of w, Instantaneous Power, Average Power, RMS values of Current and Voltage, Apparent Power and Power Factor, Complex Power, Introduction to Three Phase Circuits. Two port n/w, Z-parameter, Y-parameter, Transmission (ABCD) parameter, Hybrid (H) Parameter, Interconnection of two port n/ws, T and representation.

**AC Machines:** Transformer: Working principle, Ideal Transformer, Equivalent Circuit, Transformer tests, Voltage regulation, Efficiency.
Three Phase Induction Motor: working Principle, Single Phase induction motor, Principle of Operation, Application, Stepper motor.

**DC Machines:** Principle of DC Generator, Methods of excitation, Characteristics and Applications, Principle of DC Motor.

**Electrical Measuring Instruments:** Basic Characteristics of Measuring Devices, Error Analysis, Standards and Calibration, Moving Coil,
Moving Iron and Electrodynamic Meters, AC/DC ammeters and voltmeters, Ohmmeters, Watt meter, Watt-hour meter, AC bridges, Q.meter,
Cathode Ray Oscilloscope.

Topic | No. of Lectures |
---|---|

Current/Voltage/Power/Ohm's Law Theorems: Kirchoff's Laws/Nodal analysis/Mesh analysis/Thevenin's theorem/Norton's theorem/ Maximum power transfer Theorem/Linearity & Superposition Source transformation/ Star-Delta, Delta-Star conversion | 1-12 |

AC circuit: RL/RC/RLC/Forcing functions/Phasor/Z-Y/ Phasor diagram/Power/RMS values | 12-18 |

Complex power/Three phase/ Two port network/Z-parameter/Y-parameter/Transmission parameter/H-parameter / Interconnection /T-π representation | 19-24 |

DC machine: Generator/Motor, their principle/application/characteristics | 25-29 |

AC machines: Transformer/ Three phase induction motor/Single phase induction motor/Stepper motor | 30-34 |

Electrical measuring instruments: Basic characteristics/ MI/MC/Electrodynamic instruments/All types of meters/AC bridges/ CRO | 35-40 |

Teaching-learning methods to be used

- Lecture and Discussion
- Tutorials
- Quiz and class tests
- Assignments
- Laboratory classes

**Experiments on circuits:** Verification of Network Theorems, Design and Study on circuits using R, L and C, Power measurement in
single phase A.C. Circuits.

**Transformer:** Open circuit and Short Circuit Tests

**D.C machines:** Open Circuit Characteristic of Generator, Speed Control of D.C. motors.

**Electrical Measuring Instruments:**Calibration of meters, Power measurement in 3-phase circuit, AC bridges.

**Power System:** Design and Physical model of domestic wiring.

Basic Electrical Engineering is one of the important subjects in the field of Engineering and technology. After completing the course EL 101, students

- will have a basic overview on the field of Electrical Engineering.
- will be able to explain and apply the basic circuit theorems of Electrical Engineering
- will be able to analyze D.C, A.C (both single phase and three phase) circuits
- will be able to explain the basics of electrical machines (Generator, motor and transformer)
- will be able to explain the principle and working of the basic measuring instruments in Electrical Engineering.

- . B. L. Theraja & A. K. Theraja, A Textbook of Electrical Technology, Vol I, S. Chand Publishers
- A. Chakrabarti, Nath, Chandra, Basic Electrical Engineering, Tata Mcgraw Hill Publishers
- D. P. Kothari, I. J. Nagrath, Basic Electrical Engineering, 2nd Ed., McGraw Hill, 2002.
- W. H. Hayt and J. E. Kemmerly, Engineering Circuit Analysis, McGraw Hill, 1993
- R J Smith and R C Dorf, Circuits, Devices and Systems, John Wiley & Sons, 1992

** For B. Tech 1st Semester (both ECE and EE), the courses MS101, PH101, CH101, ME101, ME103, EG 101 are offered by other departments. For course plan, the students are advised to visit the respective departmental websites; however syllabi are available*