DKirkham
Automotive
- Dec 2, 2006
- 65
Dear Gods of Electrical Motor Theory,
I am just a lowly automotive/manufacturing guy most humbly petitioning you, the Gods of Electrical Motor Theory, to grace me with your knowledge on how the delta wye switch works.
Yes, I have searched Google. I have searched this site (you guys understandably gloss over it). I have searched high and low but can not find the answer to my question. I recognize my own electrical stupidity is probably hindering me.
If anyone had a few minutes, I would be most grateful.
I just read this
My question is, does the delta/wye extend the torque range in a VFD 3 phase motor? How? and most importantly, why?
From the Haas website:
On-The-Fly WYE-DELTA Switching
Many Haas VMCs feature the Haas Dual-Drive
system, which consists of a dual-winding motor –
Wye and Delta – and an electronic switch to change
between the two windings. Selecting the best
winding for low-rpm cutting and the best winding
for high-rpm cutting yields higher torque over a
wider rpm range. The Haas Dual-Drive system also
provides constant horsepower over a much wider
rpm range, and on-the-fly winding change
provides the wide power range necessary for
constant surface speed cuts.
David
I am just a lowly automotive/manufacturing guy most humbly petitioning you, the Gods of Electrical Motor Theory, to grace me with your knowledge on how the delta wye switch works.
Yes, I have searched Google. I have searched this site (you guys understandably gloss over it). I have searched high and low but can not find the answer to my question. I recognize my own electrical stupidity is probably hindering me.
If anyone had a few minutes, I would be most grateful.
I just read this
My question is, does the delta/wye extend the torque range in a VFD 3 phase motor? How? and most importantly, why?
From the Haas website:
On-The-Fly WYE-DELTA Switching
Many Haas VMCs feature the Haas Dual-Drive
system, which consists of a dual-winding motor –
Wye and Delta – and an electronic switch to change
between the two windings. Selecting the best
winding for low-rpm cutting and the best winding
for high-rpm cutting yields higher torque over a
wider rpm range. The Haas Dual-Drive system also
provides constant horsepower over a much wider
rpm range, and on-the-fly winding change
provides the wide power range necessary for
constant surface speed cuts.
David