PROPERTY SQUIRREL CAGE MOTOR SLIP RING MOTOR Rotor Construction Bars are used in rotor. Squirrel cage motor is very simple, rugged and long lasting. No slip rings and brushes Winding wire is to be used. Wound rotor required attention. Slip ring and brushes are needed also need frequent maintenance.

One of the major difference between the slip ring and the squirrel cage motor is that. Wound rotor is known as a slip ring induction motor or phase wound motor. A squirrel-cage rotor is the rotating part (rotor) used in the most common form of AC induction motor. It consists of a cylinder of steel with aluminum or copper conductors embedded in its surface. An electric motor with a squirrel-cage rotor is termed a squirrel-cage motor.

Starting Can be started by D.O.L., star-delta, auto transformer starters Rotor resistance starter is required. Starting torque Low Very high Starting Current High Low Speed variation Not easy, but could be varied in large steps by pole changing or through smaller incremental steps through thyristors or by frequency variation. Easy to vary speed. Speed change is possible by inserting rotor resistance using thyristors or by using frequency variation injecting emf in the rotor circuit cascading. Maintenance Almost ZERO maintenance Requires frequent maintenance Cost Low High. Related Articles: • • • • • • Engineering Tutorial Keywords: • yhsm-inucbr_001 • difference between squirrel cage and slip ring induction motor • what is the different between cage motor and slip ring • slip ring motor • different between slip ring motor and squaral cage motor • difference between induction and slip ring motors • difference between a slip ring and cage motor • difference between squral gauge and slipe ring motor • difference wound rotor motor vs squirrel cage motor • differenciate between squirel cage induction motor and slip ring induction motor.

Download prince hits b sides zip codes. Schematic symbol of a slip ring motor A wound-rotor motor is a type of where the windings are connected through to external resistance. Adjusting the resistance allows control of the speed/torque characteristic of the motor. Wound-rotor motors can be started with low inrush current, by inserting high resistance into the rotor circuit; as the motor accelerates, the resistance can be decreased.

Compared to a, the rotor of the slip ring motor has more winding turns; the induced voltage is then higher, and the current lower, than for a squirrel-cage rotor. During the start-up a typical rotor has 3 poles connected to the slip ring.

Each pole is wired in series with a variable power resistor. When the motor reaches full speed the rotor poles are switched to short circuit. During start-up the resistors reduce the field strength at the stator. As a result the is reduced. Another important advantage over squirrel-cage motors is higher starting torque. The construction of slip ring induction motor is quite different compared to other induction motor.

Slip rings Induction motor provides some advantages like provides high starting torque, low starting current and it improves the power factor. We can add external variable resistance to the rotor of this type of motor.

So, we are able to control the speed of this type of motor easily. A wound-rotor motor can be used in several forms of.

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Certain types of variable-speed drives recover slip-frequency power from the rotor circuit and feed it back to the supply, allowing wide speed range with high energy efficiency. Use the slip rings to supply external power to the rotor circuit, allowing wide-range speed control. Today speed control by use of slip ring motor is mostly superseded by induction motors with. References [ ].