Can a shaded-pole motor be used as a generator?
I just examine my armature and it will be impossible to remove the shading coil because when it was manufacture the shading pole was the first thing installed on the frame, and the coils were wrapped around it. The only thing I can do is to cut a notch on the ring to break it.
my questions are:
(1) Will the armature be more efficient at generating electricity and being a motor with or without the shading coils?
(2) What will breaking the continuity of the shading coil do? Will it make the armature a regular squirrel cage? Will it remain a shaded-pole motor but with a less powerful shading coil? Will it be better or able to be a motor/generator?
Before yesterday I did not know anything on shaded-coil motor, so I will appreciate any knowledge (Yes I have read everything link about the subject on Google!).
Thank You for your answer
As I said I am building a flywheel, thus I have to design the system for three state:
(1) Motor spin the flywheel to its maximum RPM.
(2) Flywheel spin on magnetic bearings to minimize the energy loss over time.
(3) Flywheel spin rotor which generate electricity.
Step (1) the motor:
You said that maybe I should not cut the shading coil because:
“without the shading of the poles, the unit when motoring will have no preferential direction to rotate. It won't be able to "make up its mind" and will just vibrate back and forth. You will have to provide some means of spinning it up close to synchronous frequency, and then it will pull in and act as a motor.”
Also “It will not be better as an induction-generator than a motor without the shaded-coil construction” http://www.control.com/thread/1295664953
My motor “might” not be self starting without the shading coil (I don’t understand the theory if it will or not be self starting after changing th