Complete Electrical Machines course for B.Tech EEE and GATE in 80+ video lectures: magnetic circuits, DC machines, single-phase and three-phase transformers, induction motors, alternators and synchronous motors. Watch in order: each lecture builds on the previous one. Modules: 1. Magnetic Circuits & Electromagnetic Induction (Lectures 1A-1R) 2. DC Machines: construction, windings, EMF equation, armature reaction, losses (2A-2J) 3. DC Motors: torque, characteristics, speed control (3A-3C) 4. Single-Phase Transformers: EMF equation, equivalent circuit, OC/SC tests, regulation, efficiency (4A-4H) 5. Three-Phase Transformers: winding connections, vector groups, Scott connection (5A-5D) 6. Three-Phase Induction Motors: rotating magnetic field, torque-slip, equivalent circuit, starting (6A-6K) 8. Alternators (Synchronous Generators): EMF equation, armature reaction, voltage regulation, two-reaction theory (8A-8J) 9. Synchronous Motors: starting, effect of excitation, synchronous condenser, applications (9A-9J) 10. Single-Phase Induction Motors: double revolving field, types, equivalent circuit (10A-10E) Solved problems for every module (Electrical Machines Tutorials): https://www.youtube.com/playlist?list=PL5TKV1tzb09kPh9xyaU8yZC4ph305bTty Notes & more: https://engineeringdevotion.com #ElectricalMachines #ElectricalEngineering #GATEEE
Curated by: Engineering Devotion (81 videos)
A single-phase transformer is a static electrical device that transfers AC electrical energy from one circuit to another through electromagnetic induction, changing voltage levels while maintaining the same frequency. OC - SC Tests: Open-Circuit (OC) Test: Performed on the low-voltage side with the high-voltage side open. It determines core losses (hysteresis and eddy current losses) and magnetizing impedance parameters ($R_c$ and $X_m$). Short-Circuit (SC) Test: Performed on the high-voltage side with the low-voltage side short-circuited. It determines copper losses and equivalent impedance parameters ($R_{eq}$ and $X_{eq}$) of the transformer. Voltage Regulation: Voltage regulation in a transformer is the percentage change in the secondary terminal voltage from no-load to full-load, with respect to the full-load voltage, when the primary voltage is kept constant. It indicates the transformer's ability to maintain a constant secondary voltage under varying load conditions. A lower voltage regulation value signifies better performance. Important Search Queries: Single-phase transformer working principle OC test of transformer procedure SC test of transformer procedure Voltage regulation of transformer formula How to calculate transformer efficiency Transformer equivalent circuit Losses in single-phase transformer Applications of single-phase transformer Transformer testing methods Phasor diagram of transformer #SinglePhaseTransformer #OCTest #SCTest #VoltageRegulation #TransformerLosses #ElectricalEngineering #PowerSystems #TransformerTesting #ElectromagneticInduction #TransformerEfficiency --- Electrical Machines full course (lectures): https://www.youtube.com/playlist?list=PL5TKV1tzb09lbVthPhckKZ7JsnwHkWmFP Electrical Machines solved problems (tutorials): https://www.youtube.com/playlist?list=PL5TKV1tzb09kPh9xyaU8yZC4ph305bTty Notes & more: https://engineeringdevotion.com