Electrical Science

Course Objectives:

1. To impart knowledge of the basics electrical engineering.
2. To impart knowledge of the working of RLC circuits.
3. To impart basic knowledge about filters and magnetic circuits.
4. To impart basic knowledge about electrical machines.

Course Outcomes (CO):

• CO1 Ability to understand and use Kirchpff’s Laws to solve resistive circuit problems.
• CO2 Ability to analyse resistive, inductive and capacitive circuits for transient and steady state sinusoidal solutions.
• CO3 Understand the first order filters and magnetic circuits.
• CO4 Understand the design of electrical machines.

Unit - I

DC Circuits: Passive circuit components, Basic laws of Electrical Engineering, Temperature Resistance Coefficients. voltage and current sources, Series and parallel circuits, power and energy, Kirchhoff’s Laws, Nodal & Mesh Analysis, delta-star transformation, superposition theorem, Thevenin’s theorem, Norton’s theorem, maximum power transfer theorem. Time domain analysis of first Order RC & LC circuits.

Unit – II

AC Circuits: Representation of sinusoidal waveforms, peak and rms values, phasor representation, real power, reactive power, apparent power, power factor. Analysis of single-phase ac circuits consisting of R, L, C, RL, RC, RLC combinations (series and parallel), resonance. Three phase balanced circuits, voltage and current relations in star and delta connections.

Unit - III

D. C. Generators & Motors: Principle of operation of Generators & Motors, Speed Control of shunt motors, Flux control, Rheostatic control, voltage control, Speed control of series motors.

A. C. Generators & Motors: Principle of operation, Revolving Magnetic field, Squirrel cage and phase wound rotor, Starting of Induction motors, Direct on line and Star Delta starters, Synchronous machines.

Unit - IV:

Transformers: Construction and principle of operation, equivalent circuit, losses in transformers, regulation and efficiency. Auto-transformer and three-phase transformer connections.

Measuring Instruments: Electromagnetism, Different Torques in Indicating instruments, Moving Iron Instruments: Construction & Principle, Attraction and Repulsion type; Moving Coil instruments: Permanent Magnet type; Dynamometer type Instruments.

Textbooks:

1. Electrical Engineering Fundamentals by Vincent Del Toro, PHI (India), 1989

References:

1. An Introduction to Electrical Science by Adrian Waygood, Routledge, 2nd Ed. 2019.
2. Electrical Circuit Theory and Technology by John Bird, Elsevier, 2007.
3. Principles and Applications of Electrical Engineering by Giorgio Rizzoni, MacGraw-Hill, 2007.
4. Electrical Engineering by Allan R. Hambley, Prentice-Hall, 2011.
5. Hughes Electical & Electronic Technology by Edward Hughes revised by Hohn Wiley, Keith Brown and Ian McKenzie Smith, Pearson, 2016.
6. Electrical and Electronics Technology by E. Hughes, Pearson, 2010.
7. Basic Electrical Engineering by D.C. Kulshrestha, McGraw-Hill, 2009.
8. Basic Electrical Engineering by D. P. Kothai and I.J. Nagrath, McGraw-Hill, 2010