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Syllabus Content
1. Magnetic Fields and Magnetic Circuits (6 Hours)
- Fundamentals: MMF, flux, reluctance, and inductance
- Field visualization with bar magnets and coils through air or combined mediums
- Core laws: Ampere’s Law and Biot-Savart Law
2. Principles of Electromechanical Energy Conversion (6 Hours)
- Characteristics of magnetic circuits: B-H curves, linear vs. nonlinear circuits
- Energy and force relationships in magnetic fields
- Torque derivation for rotating elements
3. DC Machines (15 Hours)
- Construction, components, and working principles
- Topics covered include:
- Armature winding, commutators, and EMF generation
- Torque equation derivation
- Armature reaction and speed-torque characteristics
- Types of DC machines: Shunt, Series, and Separately excited machines
- Testing and performance analysis: Swinburn’s, Hopkinson’s, and Field tests
4. Transformers (15 Hours)
- Single-phase and three-phase transformers: Construction, working, and equivalent circuits
- Voltage regulation, losses, and efficiency analysis
- Advanced topics:
- Parallel operation and tap-changing
- Scott connections for phase conversion
- Harmonic behavior and magnetizing currents