ORIGINAL: DaveFlynn
It's hard to tell, but there is a big difference when running the motor on DC, wye is better.
Hi Dave -
Could you explain your statement, please? I've built a bunch of brushless motors for R/C use, and while there may be good reasons to select either a Wye or Delta termination, I've never noted that one was always "better" than the other. Doesn't it depend on what you want the power system to do (big prop/small prop, torque/speed, direct drive/gearbox, etc.)?
As for how to determine the termination of a given motor, in some motors terminated as Wye, you can actually see a little stub where the three phases are connected together. Delta won't have that.
- Jeff