Some of the changes can be made in the stator if the slip ring motor is rather applied in a cascaded system. Here, the supply of data for the slave motor in balanced or controlled by the supply from the rotor of a slip ring motor with the help of an external resistance that is mounted on the mechanism. The slip ring induction motor comes with a "Phase-Wound" rotor. This rotor type is supplied with a distributed winding which has a three-phase and a double-layer and it consists of a number of coils that are used in the alternators.
The core of the rotor is made up with the steel laminations which have a number of slots to be accommodated and formed into a three single-phase winding. All of these windings are then placed degrees apart electrically. Commutators, on the other hand, are used in DC motors to reverse the polarity of current in the armature windings. The ends of each armature coil are connected to commutator bars located degrees apart.
As the armature spins, brushes supply current to opposing segments of the commutator and, therefore, to opposing armature coils. Slip rings are used in virtually any application that includes a rotating base or platform, from industrial equipment such as index tables, winders, and automated welders, to wind turbines, medical imaging machines CT, MRI , and even amusement park rides that have a turntable-style operation.
Although the traditional application for slip rings was to transmit power, they can also transmit analog and digital signals from devices such as temperature sensors or strain gauges, and even data via Ethernet or other bus networks. You must be logged in to post a comment. When the currents of both the rotor and the stator are more in phase, we obtain a bigger torque. Also, the external resistance, added by the slip rings, lowers the starting current demand. A slip ring is a device that can transmit power, electrical signals or data from a static source to a rotating one.
Slip rings are typically made of conductive materials, such as cooper or gold alloys. Sometimes they are manufactured with silver or coin silver. The machines used to bottle your milk? They use slip rings. And the International Space Station? Squirrel cage induction motor has the problem of low starting torque due to low resistance.
Therefore, they are not suitable for applications like crane or lifts. On the other hand, a slip ring induction motor is also similar to the normal Squirrel cage induction motor.
The only difference is in the construction of the rotor winding. The rotor winding is been connected with the slip rings with the help of carbon brushes. The other end of the slip rings is been attached to the external variable resistances.
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