0
Just like a transformer, the core losses are a combination of eddy current losses and hysteresis losses.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What is induction motor?
Induction motor is an AC electric motor which uses electromagnetic induction to induce the electric current in the rotor to produce torque.
Why friction and windage loss for an induction motor remain constant with change of stator voltage?
Because the RPM remains same
Why the no load power factor is quite small in case of 3-phase induction motor?
Induction motors are designed for a certain power. If the power demand is lower than that, you still have to setup the magnetic fields as if you were going to supply that maximum power. As a result, the no-load power factor of an induction motor is quite small, i.e. poor.
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.
What is the useful of open end winding of induction motor?
Standard induction motor has a closed squirrel cage rotor, where as open ended induction motor has split phase rotor.
Does slip of induction motor depend upon core loss component?
No,
What are the losses have an induction machines?
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. Regards,,
Does induction motor works on Electromagnetic induction?
Yes the Induction motor works on Electromagnetic induction principle.
What is induction motor?
Induction motor is an AC electric motor which uses electromagnetic induction to induce the electric current in the rotor to produce torque.
Why need of circle diagram in induction motor?
Circle diagram of an induction motor is plotted set of lines , arcs, and angles graphically depicting induction motor performance, derived from simple no-load and locked-rotor tests. A motor's "conventional" efficiency was determined based on four losses only: stator and rotor I2R, core loss, and friction and windage. Each of them could be evaluated with acceptable accuracy from tests without shaft load, through use of a circle diagram. Other than this all operational performances of an induction motor can be calculated by circe diagram without actually loading the machine.You can not count the advantages of the circle diagram only when you use it.
Applications of induction motor?
A single phase induction motor is mainly used in fans.It is capacitor start capacitor run induction motor.In three phase induction motor squirrel cage induction motor is mainly used in elevators,lifts,cranes.slip ring induction motor is mainly used in electrically driven ships.
What is a decripition of Nikola Tesla induction electric motor?
AC Induction Motor
What are the End effects in linear induction motor?
due to the finite length of primary core and windings of linear induction motor, the phenomenon so produced is called as end effect. this can be categorized further as dynamic end effects and exit end effects.
Why friction and windage loss for an induction motor remain constant with change of stator voltage?
Because the RPM remains same
Difference between transformer and induction motor?
1. Induction Motor has an air-gap but transformer has no air gap rather it is mutually link. 2. Induction Motor has high no-load current than transformer. 3. Induction Motor is a dynamic device. 4. Induction Motor has high power factor.
Can a Squirrel Cage Induction motor can be converted to Slip Ring Induction Motor?
yes
Why you are using star connected induction motor and delta connected induction motor?
mnhjjhjjhnbn
