A slip ring motor contains a slip ring, which is a mechanical device that transmits power and electrical signals from a stationary to a rotating structure. They are commonly found in engines used in cable reels, wind turbines, packaging machinery and radio telescopes.
in a three phase induction motor the if the case is wound rotor then slip ring are used. The winding of rotor is 3phase winding one end is shorted to form the nutral point, it can be star or delta, however star is preffered. The other end is connected by the help of slip ring for completing the circuit.generaly rehosted are connected after slip ring to vary the current and control the speed of motor.
salil prasad
electric enng
In an induction motor, slip rings provide a means for connecting external resistance in the rotor circuit. Inserting external resistance increases the slip of the motor and reduces the operating speed at any given load torque. Slip rings are provided with wound rotor induction motors, not squirrel cage induction motors. There are control schemes in which energy is returned to the power source rather than dissipated as heat in external resistors. Other schemes have also been used. Applications formerly served by wound rotor induction motors are today usually served by squirrel cage induction motors and variable frequency drives.
to transfer power from the stator to the rotor. there are similar to the commutators but not segmented; they are continuous.
slip rings generally allow the induced current that is produced by the motion of the motor to flow though the external circuit, hence generating a continuous alternating current.
To electrically couple the rotor to a stationary power source.
Slip rings offer a means of connecting a rotating winding to an external circuit. Slip rings are used when an a.c. output is desired.
Slip rings are needed to connect a rotating armature to external fixed circuits.
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
The split rings cause the direction of the magnetic field in the armature to change direction as the motor rotates. If this didn't happen the motor would not rotate. Slip rings can be used for an AC motor which causes the direction of the magnetic field to change with the AC waveform.
Your question can not be answered as it is. Reword the question - is it about induction motors or synchronous motors, for example?
If slip rings are used, a dc field current fed to the rotor through the slip rings causes a magnetic field that rotates with the rotor. This is used in synchronous motors and also in alternators in cars and power plants. In a car alternator the dc current supplied to the rotor is used to control the votage generated in the stator, which is connected through diodes directly to the battery.
If the synchronous motor is single phase then there are two slip rings & if this motor is three phase so the slip rings are three in number. Correction; I have never seen a single phase synchronous motor. It would cost more that it was worth. A synchronous motor has a separately excited field. If the excitation comes from a stationary DC source it has 2 slip (collector) rings. A brushless induction motor has no slip rings because the exciter armature rotates and so do the rectifiers. A permanent magnet motor, used with variable frequency drives, is another type of synchronous motor that has no slip rings. A three phase motor with 3 slip rings is a Wound Rotor motor. Wound rotor motors are variable speed motors that were used for such applications as bridges and cranes before variable speed drives.
larger synchronous motors start with a squirrel cage and run when dc is applied thru the slip rings small motors can have magnets in the rotor these can accelerate from rest to synchronous speed in a few seconds
Slip rings are used in AC while split rings are used in DC generators
Slip rings offer a means of connecting a rotating winding to an external circuit. Slip rings are used when an a.c. output is desired.
slip ring motors are one in which the rotor is connected to the slip ring directly in which the slip ring also connected with the shaft so that it rotates with the rotor simultaneously..
Electrical slip rings can be purchased from a number of online sources. Some of these stores, include Mercotac (www.mercotac.com) and Lucas Alternator slip rings (at www.tradekey.com).
Split rings are in AC generators ( alternating current) while slip rings are in DC current (direct current).
Slip rings are needed to connect a rotating armature to external fixed circuits.
No. Just the opposite. An AC alternator uses slip rings, a DC generator uses a commutator. Most modern auto alternators are in fact AC alternators that rectify the AC output to DC using a diode bridge.
Electrical slip rings are available from Sibley.com and Mercotac.com. You can also find them at local electrical supply stores.
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