Slip (S): It is defined as the difference between the synchronous Speed [Ns] of the rotating stator field and the actual rotor speed [N] .
Mathematically,
%Slip (s) = [(Ns - N)/N] *100
where
Ns - N : Slip Speed.
To note:
When
( i) Rotor is stationary ( i . e .) s=1
At this condition Voltage induced in rotor conductors is maximum.
(ii) rotor rotates @ Synchronous Speed ( i e ) Ns = N
At this condition Voltage induced in rotor conductors is zero.
In an induction motor
0.1% < s < 3% an essential need for a constant speed motor.
Rotor resistance is independent of slip [S].
slip power is a power which is develop by the induced voltage and current in an induction motor
short the rotor terminals.
induction motor is AC motor also synchronic motors are AC motors but second one has not slip but first one has slip . shut motor is DC motor
A slip ring induction motor can operate similarly to a squirrel cage induction motor, but they are designed for different applications. The slip ring motor has external resistors connected to the rotor through slip rings, allowing for better control of torque and speed, especially during startup. In contrast, a squirrel cage motor has a fixed rotor design, which makes it simpler and more robust but limits its ability to handle variable loads. Thus, while they can share some operational characteristics, their designs and applications differ significantly.
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slip power is a power which is develop by the induced voltage and current in an induction motor
yes
They are the same thing: (Nsync - N)/Nsync, or 1 - N/Nsync
Slip Ring Induction Motor and Squirrel Cage Indution Motor
short the rotor terminals.
induction motor is AC motor also synchronic motors are AC motors but second one has not slip but first one has slip . shut motor is DC motor
No,
in case of induction motor the rotor speed is less than synchronous speed giving positive slip but in case of generator the rptor speed is greater than synchronous speed giving negative slip.......
DOL(Direct Online starting) Star Delta starting Auto transformer starting Above methods are for squirrel cage induction motor Rotor resistance starting is used for wound rotor or slip ring induction motor
it is the difference between the synchronous and asynchronous speed of a induction motor
According to types ofrotors....Induction motors are classified into two types. They are1.sqirrel guage induction motor2.slip ring induction motor/...........
When you do a load test on a 3-phase induction motor you are checking the power factor, viz slip, and efficiency of the motor. You can test various loads with this test.