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)
Torque Development by Alignment of Two Fields : Torque development by alignment of two fields is the fundamental principle behind the operation of most electric motors and many other electromagnetic devices. Essentially, it describes how a rotational force (torque) is generated when two magnetic fields, originating from different sources, interact and attempt to align themselves. This alignment occurs because magnetic fields naturally seek a path of minimum reluctance, pulling objects into positions where magnetic flux lines can pass through most easily. When one magnetic field (e.g., from a stator in a motor) creates a stationary or rotating magnetic field, and another magnetic field (e.g., from a rotor, either a permanent magnet or an electromagnet created by current) is introduced, the interaction between these fields produces a force that tries to bring them into alignment. If the rotor is free to move, this force manifests as torque, causing it to rotate. The magnitude of this torque is directly related to the strength of the interacting fields and the angle between them, typically being maximum when the fields are perpendicular and zero when they are perfectly aligned (or anti-aligned). Important Search Queries in this Topic: How is torque generated in electric motors? Magnetic field interaction and torque Principle of electromagnetic torque Reluctance torque explained Synchronous motor torque principle Magnetic alignment force Torque angle in electrical machines Lorentz force and motor operation Magnetic dipole moment torque #TorqueGeneration #MagneticFields #ElectricMotors #Electromagnetism #MotorPrinciple #ReluctanceTorque #SynchronousMotor #MagneticAlignment #MotorPhysics #ElectricalMachines --- 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