Slip rings are also referred to as electric swivels, rotary electrical joints as well as collector rings. It is a device which has the capacity to transmit power or data between a stationary and rotating component. The slip ring design depends on its applications. For example for transmitting data, the slip ring must have high bandwidth and better electromagnetic interference mitigation than the transmit power. Basically, the slip rings have two components such as a rotating ring and stationary brushes.

Why Slip rings are used in motors?
Slip rings are not used for transferring power. It is mostly used for fighting into the rotor windings. The rotor motor generally uses three slip rings which are basically made up of copper. Each and every slip ring is associated with one of the three phases of rotor windings. The brushes of the slip ring are made up of graphite and connected to the resistive mechanism. Thus the slip rings turn with the rotor, the brushes maintain constant contact with rings and then transfer the resistance to rotor windings.

Including resistance to rotor windings transports the rotor current in phase with stator current. By doing this, the result has superior torque manufacture with low current. The slip rings are only utilized at the start-up due to their lower efficiency. If the motor attains its operating speed then the slip rings are shorted out as well as brushes drop contact. Then the motor acts as a standard induction motor. Slip rings provide a constant convey of power, data or signals mainly in AC motors. It is because they transfer resistance to the rotor windings. It is mainly used in many applications which add a rotating platform or base. Slip rings are also used in a traditional application in order to transmit power.

Slip rings come with numerous types but in this article, we are going to discuss Pancakes Slips. Therefore read this article and get more information about Pancakes to slip rings.

About Pancake slip rings

Pancake Slip Rings are particularly designed when the length is restricted but the length is obtainable. It makes sure consistent with Low friction. Generally, the rings are concentric in a plane. The Pancake design provides a large track capacity than the other one in a reduced height package. They are specially designed for space grave applications. It is similar to bore slip rings with a particular focal point on least height. An individual can choose a cable with minimum height. 

Pancake slip ring is designed as innovation in order to make an authoritative space application about the height dimension. Its flat shape is similar to platter slips. It is mainly designed for housing. They are regarded as the electromechanical devices which enable power transmission as well as electrical signals from stationary to turning structures. The slip rings can be utilized in any systems which needs rotation while transmitting signals or power.

Importance of Pancake slip rings
Pancake slips enhance mechanical performance, simply work with eliminating prone from changeable joints. It is mainly found in motors, an electrical generator for modifying the current system as well as in the machinery package, wind turbines, and cable reels. These are used on any kind of rotating object in order to transfer power, control circuits, and many others. Pancake is a high-speed slip range which is multiple usages. Its fine brass rings are used for signals and plating with gold & silver which contains low resistance and noise level when needed. When these valuable metal surfaces are used in conjunction, it provides the best result. Moreover, Pancake slips units are regularly appropriate for slow speed.

Parts of Pancake slips
The pancake slips have the best parts which are mentioned below:
·         Spring – Pancake springs are well manufactured with high-speed slip ring which is for limited height situations. This one does not have any limitation. The slip rings have unique features such as thickness, large OD and minimum height.  This one looks like a plate so it is called a plate slip ring. By using the precious metal contacts, it is a table, low free maintenance, torque,and long life. Its minimum thickness is 18mm.

·         Slop rings – The pancake slips slop rings uses the vacuum supporter infusion process. By using it, it is stable with low contact resistance as well as high performance

This pancake slip ring is utilized in applications where the slip ring has restricted space in height direction. These are used in various application such as medical, test, print, measure, and textile industry. Its high-quality parts make large pancake slip rings for declaimers in the bulk substance handling industries. These slip rings have naturally born between 500mm to 1000mm. As well as made of numerous pieces with larger diameters. Hence it is considered as the split pancake slip rings. The pancake slip rings are manufactured with extreme care for space significant applications regarding the height dimensions. This one is used at multiple places in order to aid with a proper recovery as well as provide a perfect solution to each & every use. Overall it is one of the amazing devices with component style setup. The superlative appliance setup can be prepared with the pancake slip ring.

The advantage of slip rings:
Slip rings permit the transmission of power and signals among fixed and turning systems. Below are the benefits of slip rings:
v  It provides high initial torque with the low starting current. Maximum height can be achieved in the slip ring motor when compared to saver cage motor. It inserts an external resistance in each & every phase of the rotor circuit and cutting the fighting at the initial process.
v  High speed slip ring motors have high loading capacity, no irregular heating and even speeding under deep loads when compared to others. So it is said to be the best device.

v  Speeds can be attuned in the case of slip ring induction motor by including a resistance. Hence slip ring motors are considered and well known as changeable speed motors.