Draw and explain power flow diagram of induction motor.
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Power flow diagram of induction motor: 1) Energy flow diagram is a graphical representation of the different power flow paths in which the width of the arrows are proportional to quantity of energy. Lengths of the arrows have no bearings with the quantities of energies. 2) These diagrams indicate the flow of energy in a process and help identifying the quality and quantity of energy. 3) The input of energy begins from top of the diagram. The outputs (useful and leakages/losses of energy are shown on the diagram. 4) The Input is provided to stator. Two losses takes place in stator: Copper loss in stator winding and Core loss in stator core. 5) The remaining power is then transferred to rotor through air-gap and torque is produced on the rotor. 6) The rotor losses include: Rotor copper loss in rotor winding and negligibly small core loss in rotor core. 7) After supplying rotor losses, the remaining power appears as gross rotor output. 8) The frictional and windage losses take place at rotor body and bearings. The remaining power then appears as net rotor output mechanical power.

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asked Oct 3, 2018 by anonymous1 | 17 views