1. DC Circuits: Electrical circuit elements (R, L and C), voltage and cuπent sources, Kirchoffs current and voltage \aws, analysis of simple circuits with dc excitation. Superposition, Thevenin and Norton Theorems. Time-domain analysis of first-order RL and RC circuits. (Chapter - 1) 2. AC Circuits : Representation of sinusoidal wavefonns, peak and RMS values, Phasor representation of AC quantities, real power, reactive power, apparent power, power factor. Analysis of single-phase ac circuits consisting ofR, L, C, RL, RC, RLC combinations (series and parallel), Series and parallel resonance. Three phase balanced circuits, voltage and current relations ίη star and delta connections, Power measurement ίη three phase circuits. (Chapters - 2, 3, 4) 3. Transformers : Magnetic materials, ΒΗ characteristics. Construction and working principle of single phase and three phase transformers. Ideal and practical transformer. Auto-transfonner and its applications. (Chapter - 5) 4. Electrical Machines : Generation of rotating magnetic fields. Construction and working of following machines : • Three-phase induction motor. • Single-phase induction motor. • Separately excited DC motor. • Synchronous generators. (Chapter - 6) 5. Electrical Installations : Components of LT Switchgear : Switch Fuse Unit (SFU), MCB, ELCB, MCCB. Types of Wires and Cables. Earthing - Types of earthing and its importance. Safety precautions for electrical appliances. Types of Batteries, Important Characteristics for Batteries. Elementary calculations for energy consumption. Basics ofpower factor improvement. (Chapter - 7)
