Difference between Transformer and Induction Motor

Transformer
Induction Motor
  1. It is a Static device.
  1. It is a Rotating device.(Rotating Transformer)
      2. It is a constant Flux device.        2. It is a variable flux device.
      3. It is a constant frequency device.       3. It is a variable frequency device i.e., stator frequency=50HZ, Rotor frequency=s.f
      4. It can operate at any power factor                            (lag,lead,upf)       4. It can operate at lagging power factor                            (only lag)
      5. It has continuous magnetic circuit.       5. It has discontinuous magnetic circuit.          (due to air gap)
      6. It is a electromagnetic Energy                      conversion device.       6. It is a electromechanical Energy                    conversion  device.
      7.Magnetising Current Iμ = 4% to 5% of IFL       7.Magnetising Current Iμ = 25% to 35% of          IFL
       8.Efficiency of Transformer is high.
        (90% to 95%)		       8.Efficiency of Induction Motor is low.
      (70% to 88%)