There is little dispute that a three phase motor runs more smoothly than a single phase one, for exactly the same reason that an internal combustion engine runs more smoothly the more cylinders it has.
The Jones and Shipman 540 surface grinder has a specially balanced three phase motor, and it is apparent in the finish if it has been replaced, as some do if they don’t have three phase, with an off the shelf single phase one. Now some of this effect is due to the precision balanced armature, but some definitely is due to the single phase nature of the replacement.
The Jones and Shipman 540 surface grinder has a specially balanced three phase motor, and it is apparent in the finish if it has been replaced, as some do if they don’t have three phase, with an off the shelf single phase one. Now some of this effect is due to the precision balanced armature, but some definitely is due to the single phase nature of the replacement.
Andrew Mawson, proud to be a member of MetalworkingFun Forum since Oct 2013.