Basic Electrical Engineering Lab

P 2 C 1

Internal Evaluation: as per university examination norms. End Term Practical Examination: as per university examination norms.

Practical component of Basic Electrical Engineering (AR111). The document publishes no separate unit-wise syllabus for this lab; the practical list is notified by the teacher, and the units below are the theory paper's.

Course outcomes (same as AR111)

• Ability of students to understand the fundamental concepts of core electrical engineering especially direct current and circuit theory with network theorems. [K1, K2, K3]
• Ability of students to provide knowledge about single phase and three phase electrical circuits. [K2, K3, K4]
• Ability of students to understand the basics of magnetic circuits and electrical transformers. [K1, K2]
• Ability of students to basic understanding of electrical rotating DC and AC machines. [K1, K2]

Unit I

D.C. Circuits: Active and passive elements, Voltage and current sources, dependent and independent sources, Source conversion, Ohm’s Law, Kirchhoff’s Law, Superposition theorem, Thevenin’s theorem, Norton theorem, Maximum Power Transfer Theorem and their application for analysis of series and parallel resistive circuits, Power & Energy in such circuits. Mesh & nodal analysis, Star-Delta transformation & circuits.

Unit II

AC Circuits: 1- phase AC Circuits: Generation of sinusoidal AC voltage, definition of average value, R.M.S. value, form factor and peak factor of AC quantity, Concept of phasor, Concept of Power factor, Concept of impedance and admittance, Active, reactive and apparent power, analysis of R-L, R-C, R-L-C series & parallel circuit. 3-phase AC Circuits: Necessity and advantages of three phase systems, Relationship between line and phase values for balanced star and delta connections, Power in balanced & unbalanced three-phase system.

Unit III

Magnetic Circuits: Basic definitions, magnetization characteristics of Ferromagnetic materials, self-inductance and mutual inductance, energy in linear magnetic systems, coils connected in series, AC excitation in magnetic circuits, magnetic field produced by current carrying conductor, Force on a current carrying conductor. Induced voltage, laws of electromagnetic Induction, direction of induced E.M.F. Single phase transformer: General construction, working principle, e.m.f. equation, equivalent circuits, phasor diagram, voltage regulation, losses and efficiency, open circuit and short circuit test.

Unit IV

Electrical Machines: Construction, Classification & Working Principle of DC machine and 1-Phase induction machine. Working principle of 3-Phase induction motor, Concept of slip in 3- Phase induction motor, Torque-slip characteristics of 3-Phase induction motor. Types of losses occurring in electrical machines. Applications of DC machine and induction machine.