That was the basic structure of stator now lets talk about rotor. In wound rotor induction motor the rotor has a 3 phase winding similar to stator winding.
Double Inverter Fed Wound Rotor Induction Motor Drive
Wound rotor motor diagram. Three phase wound rotor induction motor. The self excited motors are further classified as shunt wound or shunt motor series wound or series motor and compound wound or compound motor. Are connected to 3 slip rings. 7 however under subsynchronous motor and generator modes all are feasible with adequate control. The three phase induction motor is the most widely used electrical motoralmost 80 of the mechanical power used by industries is provided by three phase induction motors because of its simple and rugged construction low cost good operating characteristics the absence of commutator and good speed regulation. It consists laminated cylindrical core which has a semi closed slot at the outer periphery and carries three phase insulated winding.
First one is separately excited dc motor and self excited dc motor. In the above figure i 2 is the reflected rotor current in the stator and this current flows through all the components r 1 r 2 x 1 and x 2 the r 2 1 ss is an electrical equivalent of mechanical load. Their sole purpose is to allow resistance to be placed in series with the rotor windings while starting figure below. In three phase induction motor the power is transferred from stator to rotor. The rotor is wound for the same number of poles as that of the stator. Wound rotor motors can be started with low inrush current by inserting high resistance into the rotor circuit.
Type of induction motor for ac in which the rotor has wire winding. However no power is applied to the slip rings. Rotor of wound rotor induction motor. Another type is squirrel cage motor that has no wire winding and has no slip rings. A wound rotor motor also known as slip ring rotor motor is a type of induction motor where the rotor windings are connected through slip rings to external resistance. Wound rotor induction motor wrim.
Rotor is also cylindrical in shape and has slots to carry winding. This is true for voltage control. A different behavior is obtained for constant rotor current control. Adjusting the resistance allows control of the speedtorque characteristic of the motor. Example 84 doubly fed im an im with wound rotor has the data. A wound rotor induction motor has a stator like a squirrel cage induction motor but a rotor with insulated windings brought out via slip rings and brushes.
The windings are accessible through slip rings. Types of dc motor a direct current motor dc is named according to the connection of the field winding with the armaturemainly there are two types of dc motors. At the no load condition of three phase induction motor nn s when ns is equal to zero and slip s is. The winding is placed evenly on slots of the rotor. The motor which employing the wound rotor is known as a slip ring induction motor or phase wound motor. V sn 220 vphase f 1 50 hz r s.
As the motor accelerates.
Gallery of Wound Rotor Motor Diagram
