An ac motor uses alternating current in other words the direction of current flow changes periodically. An induction motor can therefore be made without electrical connections to the rotor.
image source http://www.directindustry.com/prod/mini-motor/product-19783-55414.html
image source https://www.facebook.com/pages/Bangla-Motorac-Market/1634649536848319
image source http://electriciantraining.tpub.com/14177/css/Split-Phase-Induction-Motors-96.htm
In some instances you might find a need to reverse the direction of a single phase ac motor.
Ac motor illustration. In all cases if youre unsure about how the motor should be connected consult an expert as incorrectly wiring a motor can lead to a. Reveal answer hide answer. Wiring an ac electric motor is not particularly difficult if the manufacturers manual is available.
An ac motor converts electric energy into mechanical energy. In an ac motor theres a ring of electromagnets arranged around the outside making up the stator which are designed to produce a rotating magnetic field. An ac motor is an electric motor driven by an alternating current ac.
If you want to run a motor from your household ac electricity supply instead of from a dc battery you need a different design of motor. The armature or rotor is an electromagnet while the field magnet is a permanent magnet the field magnet could be an electromagnet as well but in most small motors it isnt in order to save power. In the above diagram you can see two magnets in the motor.
At high speed this motor provides more power than a same size induction motor but is not maintenance free. But if the manual cannot be found the job becomes tougher. A popular strategy for ac induction motor control is the use of variable frequency drive units or vfds.
Most ac commutator motors are this type. In the case of common ac that is used throughout most of the united states the current flow changes direction 120 times every second. This is known as a universal motor.
It is possible to produce small appliance motors powered by either ac or dc. The ac motor commonly consists of two basic parts an outside stator having coils supplied with alternating current to produce a rotating magnetic field. Explain what varying the frequency of power to an ac induction motor accomplishes and why this might be advantageous.
Fortunately this is a fairly simple task because most single phase induction motors go in forward and reverse depending on their wiring and the resulting magnetic field. Three phase wiring diagrams always use wiring diagram supplied on motor nameplate colored leads are only applicable on the new rolled steel motor lines single phase wiring diagrams always use wiring diagram supplied on motor nameplate for motors with thermal protection. An induction motor or asynchronous motor is an ac electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding.
image source https://www.sciencedirect.com/topics/engineering/synchronous-motor
image source https://www.allaboutcircuits.com/worksheets/ac-motor-control-circuits/
image source https://www.indiamart.com/proddetail/oriental-nx410aa-1-tuning-free-ac-servo-motor-unit-19231777588.html
image source https://en.wikipedia.org/wiki/Wound_rotor_motor
image source https://www.extremepsi.com/store/OEM-A-C-Condenser-Fan-Motor-Mitsubishi-EVOLUTION-VIII-and-IX-2003-2006.html
image source https://www.slideshare.net/mhmdenab/basics-of-ac-motors-siemens-cources
image source http://ffden-2.phys.uaf.edu/211_fall2013.web.dir/clay_allen/AC_CURRENT.html
image source https://www.tes.com/lessons/FxEMhKUhZo-B3Q/starting-and-speed-control-of-3-phase-induction-motor
image source https://www.motioncontroltips.com/category/motors/ac/
image source https://imgbin.com/png/uLrCvKhK/synchronous-motor-electric-motor-gif-craft-magnets-diagram-png
image source https://www.motioncontroltips.com/category/motors/ac/
image source https://electrical-engineering-portal.com/4-types-of-dc-motors-and-their-characteristics
Tidak ada komentar:
Posting Komentar