Slip Ring Rotor Resistance Calculation

Prity 24 february 2014 at 03 02.

Slip ring rotor resistance calculation.

We saw some of the applications of this motor. Actually a slip ring motor had a rotor which is known as wound rotor. Calculation table for slip ring induction motor used for crane hoisting application. Overhead crane slip ring motor resistance calculation duration.

Slip ring or wound rotor motors. Only for you 32 662 views. As these motors have external resistance connected to its rotor circuit the value of starting current is adjusted or kept minimum by increasing the resistance of the rotor circuit. 7 14 shows how the motor torque speed curve would change if rotor resistance is increased and all other parameters in the motor equivalent circuit stay the same.

The value of starting current is adjusted by adding up external resistance to its rotor circuit. I am a student of electrical enginnering it helped me alot in my electrical paper of chapter slip ring. Rotor resistance starting slip ring induction motor srim. The rotor circuit resistance has significant impact on starting torque the speed at which the breakdown torque occurs and the slip during the normal running operation.

Slip ring i m provides high starting torque. The stator is the same as is used with a standard squirrel cage motor. But in case of slip ring motors the rotor resistance is increased by the addition of external resistance. So at the starting because of the high rotor resistance we get low starting current which helps to start motor without any damage.

Slip ring induction motor speed control the speed control of this motor can be done using two methods which include the following. These motors are usually started with full line voltage applied across its terminals. Rotor resistance starter in three phase induction motor electrical academy. The rotor had a external resistance which is connected to it.

Starting of slip ring induction motors. Incase of a squirrel cage induction motor the value of rotor resistance is very low which leads to heavy starting current requirement. This gives the three phase motor having three sets of resistors each set having resistors about 6 to 8 connected in.