Circuit Frequency's effect on electric motors

[IrvinShepherd]

What is the effect of the Circuit Frequency on the Electrical Motors which runs the production line!

For example if we had like 3 - 4 Motors!

Effect on:

Efficiency of the motors!

Speed of the motors!

What about if we had a " Servo Motor " which runs one of the machine!

 

[madmike159]

It is hard to tell what you are talking about from the information provided. Do you mean what effect will electric motors have on electronic circuits near by?

 

[Redbelly98]

I think the question is, if the AC mains frequency changes, how would that affect the motors that are plugged into an AC mains outlet.

But it would be good if Irvin could clarify this.