whit3rd wrote:

On Wednesday, April 11, 2018 at 10:05:22 AM UTC-7, Bob La Londe wrote:
Is there any significant advantage to an 800hz 4 pole spindle/motor over
a 400hz 2 pole spindle motor?


Two/four pole? Surely that's FOUR/eight pole, how would a two-pole motor
know which way to turn?
Two poles PER PHASE. So a "two pole" 3-phase motor would actuallly have SIX
pole windings.

Jon