RFSquirrel Cage vs. Slip Ring Induction Motors: Key Differences
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This page compares squirrel cage induction motors and slip ring induction motors, highlighting the key differences between them.
| Feature | Squirrel Cage Induction Motor | Slip Ring Induction Motor |
|---|---|---|
| Copper Losses | Low | High |
| Starting Torque | Low, but running torque is good | High |
| Efficiency | High (low rotor resistance) | Low |
| Speed Variation | Varied by changing poles | Varied slightly by changing rotor resistance |
| Speed Stability | Nearly constant, slight fall with load | More speed falls with load |
| Starting Current | High | Low |
| Application | Low power, speed control not required | High starting torque required |
| Use Cases | Printing machinery, saw mill, flour mill, lathe, blower mills | Rolling mills, flour mills, lifts, cranes etc. |
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