12 lead electrical motor wiring confirmation 2

[IzInBloOm]

Most 3 phase motors I work with are 6 lead, but I have this 12 I'd like confirmation on the wiring.

I think I already know the answer to this, but I'd just like a sanity check.

I'm trying to wire this motor for 220.
Image

https://ibb.co/4ps2GZV

I have the jumper plates configured property for the 220 (double delta), but on a pigtail coming off of it there are six leads at U1, V1, W1, and at U4, V4, W4. I believe I bind U1+U4, V1+V4, W1+W4. And those becoming my L1,L2,L3.

Am I correct? Thanks guys.

 

[waross]

I would guess U1 to W4, V1 to U4 and W1 to V4, but I wouldn't trust my guess.
I can't find anyone else using U3, U4, V3, V4, W3 and W4.
Standard is U1, U2, U5, U6, V1, V2, V5, etc.
Standard is also to connect W6 to U1, not U6 to U1.
Before connecting I would identify the windings with the -3 and -4 numbers, including the polarity.
The -3, -4 numbers probably translate to -5 and -6 numbers, but may translate to -6 and -5.
I would check first.
How would I check?
That depends on what I had to check with.

Bill
--------------------
"Why not the best?"
Jimmy Carter

 

[xnuke]

You'll short each phase like that, OP. Connect U1 and W4, V1 and U4, and W1 and V4 like waross wrote, then those become L1, L2, L3. See page 18 of https://law.resource.org/pub/in/bis/S05/is.iec.60034.8.2002.pdf&sa=U&ved=2ahUKEwjEo57F_IPuAhXHs54KHbSxBvwQFjASegQIBBAB&usg=AOvVaw2wP-cqpPjtLZ4lGjRQRd_Y]Link[/url]

xnuke
"Live and act within the limit of your knowledge and keep expanding it to the limit of your life." Ayn Rand, Atlas Shrugged.
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.

 

[IzInBloOm]

Thanks guys, I went and checked the coils with the bars off for continuity with the meter and you are right. The coil pairs are
U1&U2
U3&U4
V1&V2
V3&V4
W1&W2
W3&W4

So I will bind U1 to W4, V1 to U4 and W1 to V4

I really appreciate the quick and accurate feedback and reference documents

 

[waross]

Nice find on that document, xnuke.
lps

Bill
--------------------
"Why not the best?"
Jimmy Carter