The only time that a capacitor and a three phase motor are combined is for power factor correction. For individual motor correction the capacitor is connected usually at the load side of the motor...
If it is a three lead 3-phase motor, it is easy:
connect the incoming three leads randomly to the three leads on the motor (one to one) so that there are a total of three splices. The motor will run...
A typical 2 speed three phase motor will have 6 leads on the motor windings which will require 3 contactors to incorperate both the "high" and the "low" speeps.Inorder for the motor to run on "low"...