Header Ads

Header ADS

Everything You Need to Know About 3-Phase Induction Motors

March 05, 2024 1

 


Construction of 3-Φ IM

Cross-section of a 3-phase induction motor, depicting its internal structure including the stator windings, rotor bars, and shaft.

Stator

ü  Stator carries a 3-Φ winding (Stator Winding) which is fed from 3-Φ supply
ü  Slots are provided on the inner periphery of the stator which houses the 3 phase winding.
ü  When 3-phase supply is given to the stator winding, a rotating magnetic field (RMF) of constant magnitude is produced.

ü  This RMF induces currents in the rotor by   electromagnetic induction due to RMF.
Stator of a 3-phase induction motor, featuring a cylindrical core with laminated steel and embedded windings.
Stator of a 3-phase induction motor, featuring a cylindrical core with laminated steel and embedded windings.

Stator of a 3-phase induction motor, featuring a cylindrical core with laminated steel and embedded windings.



Stator of a 3-phase induction motor, featuring a cylindrical core with laminated steel and embedded windings.


star connection
                  Rotor
v  Rotor carries a short-circuited winding known as rotor winding which receives power from stator by electromagnetic induction.
Ø  2 types of rotor
1.   1 . Squirrel cage type
2.      Wound type
Squirrel cage type rotor



Close-up view of a squirrel cage rotor, showcasing its cylindrical shape and uniform conductor bars.

Squirrel cage rotor of a 3-phase induction motor, featuring evenly spaced conductor bars resembling a cage.


"Stator (stationary) and rotor (rotating) parts of a 3-phase induction motor, labeled for clarity."












Tags:

1 comment:

Subscribe to: Post Comments ( Atom )
Powered by Blogger.