Squirrel Cage Induction Motor vs Slip Ring Induction Motor Comparison of Squirrel cage induction motor with slip ring induction motor (Wound Rotor Induction Motor) is listed in the below table: Squirrel Cage Induction Motor Slip ring (wound rotor) Induction Motor In Squirrel cage induction motors the rotor is simplest and most rugged in construction In slip ring induction motors the rotor is wound type. In the motor the slip rings, brushes are provided.
Compared to squirrel cage rotor the rotor construction is not simple. Cylindrical laminated core rotor with heavy bars or copper or aluminium or alloys are used for conductors. Cylindrical laminated core rotor is wound for as the number of poles of the stator. Rotor conductors or rotor bars are short circuited with end rings. At starting the 3 phase windings are connected to a star connected rheostat and during running condition, the windings is short circuited at the slip rings. Rotor bars are permanently short circuited and hence it is not possible to connect external resistance in the circuit in series with the rotor conductors.
It is possible to insert additional resistance in the rotor circuit. Therefore it is possible to increase the torque ( the additional series resistance is used for starting purposes) Cheaper cost Cost is slightly higher.
Slip ring induction motor is made up from wound rotor and squirrel cage induction motor is made up from the squirrel cage rotor. Stator The stator is the outer component of the motor which can be seen. Mar 7, 2018 - These motors are having the difference in rotor construction. In Squirrel cage induction motors the rotor is simplest and most rugged in construction. Carbon brushes, slip rings, etc. Are provided in the rotor circuit. Note: In Slip ring Induction Motor, Stator is wound for 3 phase winding.
Descargar Super Smash Bros Brawl Wii Iso Utorrent. Descargar Super Smash Bros Brawl Wii Iso Utorrent. Super smash bros brawl download.
No moving contacts in the rotor. Carbon brushes, slip rings etc are provided in the rotor circuit. Higher efficiency. Comparatively less efficiency. Low starting torque. It is 1.5 time full load torque.
High starting torque. It can be obtained by adding external resistance in the rotor circuit. Speed control by rotor resistance is not possible. Speed control by rotor resistance is possible.
Starting current is 5 to 7 times the full load. Less starting current. Advantages of Squirrel-Cage Induction Motors The advantages of squirrel-cage motors compared with the slip ring induction motors are given below (i) They are more robust and cheaper (ii) Comparatively they have higher efficiency and power factor (iii) Since the risk of sparking is eliminated by the absence of slip rings and brushes, they are explosion-proof. Advantages of Slip ring Induction Motors The advantages of the wound rotor (Slip ring) Induction motors compared with the squirrel-cage motors are given below (i) They have very high starting torque (ii) They have very low starting current (iii) They have a means of varying speed by use of external rotor resistance.
- Author: admin
- Category: Category