Urgent help required with transformer vector grouping?
Urgent help required with transformer vector grouping?
(OP)
Hi,
I am currently attempting to obtain details in relation to Dy7 transformer. However I am struggling to find any information with regards to the phasing. I appreciate there is 150 degree phase shift, but how is this achieved?
Are there any vector diagrams to illustrate a Dy7 transformer?
Any help would be greatly appreciated.
I am currently attempting to obtain details in relation to Dy7 transformer. However I am struggling to find any information with regards to the phasing. I appreciate there is 150 degree phase shift, but how is this achieved?
Are there any vector diagrams to illustrate a Dy7 transformer?
Any help would be greatly appreciated.






RE: Urgent help required with transformer vector grouping?
xnuke
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RE: Urgent help required with transformer vector grouping?
Starting with a Dy11, you can get a Dy11, Dy7, and Dy3 just by rolling all three phases on one side and by changing the rotation order on both sides and rolling on one side you can also get the Dy1, Dy5, and Dy9.
I think there's a FAQ here about converting the Dy1 to a Dy11 or vice versa. The Basler web site has had a technical paper going into all the various vector combinations, I haven't looked for it for quite a while.
RE: Urgent help required with transformer vector grouping?
Here's a pdf on doing it that I've posted to this forum a few times.
RE: Urgent help required with transformer vector grouping?
Regards
Marmite
RE: Urgent help required with transformer vector grouping?