At their most fundamental level, electrical machines rely on the interplay between , magnetic fields , and mechanical motion .
: Convert electrical energy into mechanical motion.
: Run on alternating current and are further divided into:
: While static (no moving parts), they are considered electrical machines because they use magnetic fields to change voltage levels. 2. By Power Supply
: The rotor rotates slower than the magnetic field (known as slip ). These are the most common industrial motors. Modern Trends in Technology
: Run on direct current. They often use a commutator to periodically reverse the current flow in rotor windings to maintain rotation.
(electrical machines) are electromechanical energy converters that use magnetic fields to transform mechanical energy into electrical energy (generators) or electrical energy into mechanical motion (motors). Core Principles and Components
: For motors, current in a wire creates a magnetic field that interacts with a second field (usually from a permanent magnet or electromagnet), producing a Lorentz force that turns the rotor.