I think I'm just missing something here, but this is puzzling me. It has to do with the current draw from an electrical motor. Say you have a 12V DC motor hooked up to a 12V power supply that supplies an infinate amount of current just for arguments case. Now, wouldn't a 12V motor hooked up with MORE stator windings produce more power, and therefore draw more current based on common sense?? However, looking at it by equations i get this. Increasing the windings would increase the total resistance of the load the the power supply sees. And V=IR so I=12/R. This means that if i increase the windings, and get more resistance, it will draw LESS current??? How can this be.

And also, when the motor is under max load, why does it draw more current if the static resitance of the stator is not changed, does it have to do with the EMF in the motor increasing resitance???

Thanks

 

Remember that each length of wire has a given resistance. The longer the wire the more resistance. Notice when you buy an extension cord, for a given load as the length of cord is longer, the gage of the wire must get bigger. The more windings there are, the longer the wire on the armature is.

Load or apposing the rotation of a motor causes essentially a shorter path for current and therefore higher current draw. Hope this very simplified explanation helps.

 

What is the question? I am so confused.... What the heck is a stator? Wow I feel dumb......