Induction motors are sometimes called asynchronous motors. They produce torque as alternating current is supplied to the rotor and electromagnetic induction is produced from the stator winding’s magnetic field.
Some of the most prevalent types of induction motors are three-phase induction motors, which feature a squirrel-cage rotor. They are a type of self-starting motor and are used in many industrial applications as drive devices.
Single-phase induction motors are also common but do not provide the higher levels of torque that are gained through three-phase motors. They are used in simpler, lower power applications, including a range of commercial and household appliances. Both types of induction motors are economical and readily available for many purposes.
AC induction motors are capable of meeting many heavy-duty demands. They are sometimes described as the workhorse of motion control, as they are not only versatile but very capable in many different settings, including as pump motors for processing and drilling, and as power devices in aerospace, defense, transportation, and infrastructure settings.
It’s easy to find induction motors as standard, off-the-shelf components but they can also be modified for unique performance and equipment specifications. Some induction motor manufacturers will offer many options with regard to the rotor material, cycle options, and the addition of breaks or gearheads. Building custom induction motors to the individual parameters of an original piece of equipment can help improve performance and longevity. The better suited a motor’s design is to its end application, the more capable it will be of providing optimal performance.
These electric motors can be further customized by modifying the stator assembly, rotor castings, and shaft, as well as the frame and housing. Some motor manufacturers can provide these motors without a frame. This is especially advantageous to OEMs that need to install a motor into a highly specialized or non-standard device.
What Is The Principle Of An Induction Motor?
Induction motors operate on the principle of electromagnetic induction. This force occurs when electricity is introduced to a rotating magnetic field via a conductor. As the stator and rotor interact, electromagnetic torque is created.
What Are The Types Of Induction Motors?
Induction motors are typically categorized by their power supply, which is either single-phase or three-phase. Induction motors may be further categorized by the inclusion of a squirrel cage, wound rotor, or slip ring. Single-phase induction motors also encompass split-phase induction motors, capacitor start induction motors, capacitor run induction motors, and shaded pole induction motors. Self-starting induction motors typically refer to three-phase types.
Where Are Induction Motors Used?
Induction motors are used in many different applications. Because they are self-starting, powerful, and economical, three-phase AC induction motors are a common fixture in a wide range of industrial equipment. Single-phase induction motors are used in many household and commercial applications that do not require reliable operation without high power. Induction motors can be made to operate as heavy-duty components for critical equipment, including that needed for aerospace, drilling and refining, commercial processing, heavy manufacturing, infrastructure, and transportation purposes.
Are Induction Motors AC Or DC?
Induction motors are AC motors. Alternating current in the motor produces torque through electromagnetic induction that’s produced from the magnetic field of the motor’s stator winding.
How Does An Induction Motor Start?
Three-phase induction motors start when the power supply is connected to the motor’s stator. This produces a magnetic field, which caused the rotor to spin and produce torque. This is why a three-phase induction motor is considered a self-starting motor.