Answer:
Step-by-step explanation:
To find the slip of the motor, we need to first calculate the synchronous speed of the motor. The synchronous speed is given by:
Synchronous speed = (120 * Frequency) / Number of poles
Where Frequency is the supply frequency in Hz and Number of poles is the number of poles in the motor.
In this case, we have a 12 pole motor. Assuming a supply frequency of 50 Hz, we can calculate the synchronous speed as follows:
Synchronous speed = (120 * 50) / 12 = 500 rpm
The full load speed of the motor is given as 1440 rpm. The slip of the motor can be calculated using the following formula:
Slip = (Synchronous speed - Full load speed) / Synchronous speed
Substituting the values we get:
Slip = (500 - 1440) / 500 = -0.88 or 88% .
Therefore, the slip of the motor is 88%.
I hope this helps! Let me know if you have any other questions or if there is anything else I can help you with.