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Why is the number of poles of stator and rotor same in induction machine?
The number of poles on stator and rotor is always the same. If they are not equal?æno torque will be produced, thus, the machine will not function.?æ
How many stator poles are used for battery charging when using the 3A stator system?
On a 1.25 A charging Stator it only has 2 poles. Now on a 3A charging Stator it has 4 poles for the charging. And both have 6 poles for Lighting Stator. So always remember that.
Single phase motor speed is determined by the?
Motor's number of poles.
Operation of a stator in an alternator?
the rotor in your alternator causes north and south mag. poles, and the wires in the stator pick up the cutting of the mag. flux and this causes a voltage in the stator leads.
What is squirrel cage in motors?
When the number of rotor and stator poles are equal in the motor and if these rotor poles have opposite polarity with respect to the stator poles magnetic locking occurs. This magnetic locking is know as "Cogging" in 3 phase squirrel cage induction motor. In order to avoid this problem, the rotor slots housing the conductors are skewed by an angle of 5 degrees over the surface.
What are the four main parts of the stator motor?
Four Basic or Main Parts Of Stator : 1. Yoke(Outer Frame) 2.Main Magnetic Poles 3.Main Field Winding 4.Inter Poles
What is stator of the armature?
The 'stator' is the generic term for the stationary parts of a machine, including its frame, magnetic circuit, poles, windings, etc.
Why there is no starting torque for synchronous motor?
The 3 phase supply is provided in the stator of a synchronous motor which produces a rotating magnetic field.The stator has field poles(North and south). Now due to the rotating magnetic field the current is induced in the rotor of the motor as due to ampere's law, so the motor tends to move.Now as the stator poles induces opposite poles on the rotor, after moving the first pole pitch the rotor gets repelled by the opposite stator poles and due to the heavy inertia of the rotor it can't respond and the motor is standstill.Hence the synchronous motor is started with the help of an auxiliary motor or such called a pony motor to overcome this problem.
What is the speed of the hp?
speed of the motor not depending the H P. It depends upon no: of poles in the stator and the supply frequency.
What are the stator of poles?
In an Induction motor synchronous speed is inversely proportion to No. of poles if we increase No. of poles speed will decrease they are derived through formula as under P= 120*f/Ns Where P= No. of Poles f= Rated frequency Ns= Synchronous speed of flux.
What is the speed of 190 hp motor?
speed of the motor not depending the H P. It depends upon no: of poles in the stator and the supply frequency.
What are stationary part of dc motor?
The stationary part of any motor or generator is termed the 'stator', and the rotating part is termed the 'rotor'.The stator comprises the main frame (chassis), the magnetic circuit, and field windings.
