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A three phase induction machine have the Following losses:-
1. Stator core loss
2.Stator Ohmic loss
3.Rotor core loss
4.Rotor ohmic loss
5.Friction losses
6.windage losses
7.Stray losses
8.Also it'll depends upon the types of motor as if it is a slip ring type IM then it will have sparking losses at slip contact etc etc which are very small in comparison to above losses.
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∙ 11y ago
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Are the friction losses of the machine linear in induction motor electrical machines?
yes
Output line drawn in circle diagram of induction motor used to find variable losses and is variable loss change with rotor current?
Yes, the output line used to find the losses, usually for smaller machines we take copper losses equal to the iron losses.
What is the minimum windings an induction machines has?
Two.
What are the various losses occurring in induction motors?
what are the various losses occurring in the motors
The output line drawn in circle diagram of induction motor is used to find the variable losses and what are other uses of circle diagram?
the circle diagram of induction motor is used to find the losses and efficiency of induction motor
What is the combination of winding losses and self induction is referred to as?
Impedence
Core loss of an induction motor?
Just like a transformer, the core losses are a combination of eddy current losses and hysteresis losses.
What is the principles of DC machines?
All DC machines are works based on the principle of FARADAY'S LAW OF ELECTROMAGNETIC INDUCTION.
What did means by the stray losses in induction motors or transformer or generator?
Stray losses refer to secondary voltage to be inappropriately distributed to transformers, induction motors and generators. Stray losses essentially mean that there is leakage that causes a weakening of the voltage being delivered to the motor.
Application of induction motor in industry?
Induction motor used in industries for variable speed machines . Induction motor has always lagging power factor. Less cost compared to syn. Motor.
Why the efficiency of induction motor is less than that of transformer?
Because, the losses of IM is more due to the contribution of friction losses at shaft bearings and wind age losses in rotor air gap, this reduces the efficiency of the equipment, Since transforms is a static equipment zero mechanical loss so efficiency of the equipments in high .
What are the different kinds of losses in machines?
stray losses,armature copper losses,iron losses(Hysteresis and eddy current losses),mechanical losses(friction and windage losses)
