How to calculate the transmission ratio of shaded pole gearbox motor?

The transmission ratio of shaded pole gearbox motor is mainly determined by the following parameters:

1. Number of pole pairs of motor rotor (P)

2. Number of phases of motor stator winding (m)

3. Number of phases of motor stator winding (q)

The transmission ratio (i) is calculated as follows:

i = P / (2*m*q)

For example, for a 4-pole 2-phase motor, the parameters are as follows:

- Number of pole pairs (P) = 4

- Number of phases (m) = 2

- Number of slots (q) = 2

Then the transmission ratio (i) is calculated as follows:

i = P / (2*m*q)

i = 4 / (2*2*2)

i = 1

That is, the transmission ratio of this motor is 1:1, and the input speed and output speed are equal.

I hope this explanation is helpful to you. If you have other questions, please continue to ask.