The stator is the stationary part of the motor, while the rotor is the rotating part.
AC motors
are electric motors that use alternating current to convert electrical current into mechanical energy. They can be single-phase or three-phase, with three-phase motors being the most common for mass energy conversion. Single-phase AC motors are used for small power conversions.Standard frame sizes are available in a variety of powers to facilitate interchangeability. Enclosures can range from simple open designs to explosion-proof and unventilated designs, with fully enclosed and fan-cooled (TEFC) being common. An international classification system also prescribes cooling and protection levels. AC motors make up a large part of the motors used today and drive pumps, fans, compressors, etc. Sizes range from subfractional power machines to large 20,000 HP units, with similar metric sized units available. Our technicians and engineers service, repair, and replace electric motors and generators, rotating machinery, and power distribution equipment.
IPS service centers in North America provide you with a standard of safety, quality, service and value. Synchronous and AC induction motors are optimized to operate with single-phase or multi-phase sinusoidal or quasi-sinusoidal energy, such as that supplied by the AC power grid for fixed speed applications or for variable speed applications from variable speed controllers (VFD).As the magnetic field of the rotor rotates inside the stator, alternating voltage and armature current are induced in the stator windings, producing alternating energy. Another synchronous motor, the so-called permanent magnet AC motor, uses the same permanent magnet technology as brushless DC designs to create synchronous AC motors that are available in fractional and integral HP sizes. This is the most common of the AC motors, as it depends on the alternating current that is connected to the stator for its power supply. An AC motor is the best choice for driving a pump; a DC motor is a good choice for driving a crane drum when variable speed is important; gearmotors serve the same functions as simple DC and DC motors, except that they come with integrated gear reducers; and pneumatic and hydraulic motors meet similar needs in situations where electricity is not practical or adequate. A synchronous AC motor is one in which the rotation of the shaft occurs at the same frequency as the current supply, the rotation period being equal to the integer number of cycles of alternating current.
