Question

1-Select one of the DC motor type belonging to any company and specify the motor parameters from its catalog/datasheet.

2-Calculate the maximum inertia value of the load to be driven according to the motor inertia specified from catalog, use given rule below to specify gear ratio plugged between load and DC motor If your student id is 12568013, then

u=(1+2+5+6+8+0+1+3)/5
u = = 5.2

3-The speed measured from the rotor of an asynchronous motor with 12-pole,
80 Hz is K * rev / min. Accordingly, calculate the synchronous speed and the shift in%.

If your student id is 12568013, then

K = [(1 + 2+ 5 + 6+ 8 +3 + 0 +1) ∗ 20] = 520

4-Asynchronous slip-ring motor with 50 Hz frequency, 380/220 V with full load values
Pn = 50 BG, nn = 987 rpm, per phase;
- rotor circuit resistance 0.2 ohm,
- the stationary reactance is 0.5 ohm,
- the loadability coefficient is 2.1,
- the number of pole pairs is 8.

Calculate the motor's full load torque, tipping torque and idle speed and number of revolutions
under maximum load.

Answer 1