oil filled transformer data

[deltawhy]

Hi, I am starting to do some coordination work and I require some data. Does anyone know if you can get general oil-filled transformer data (%z, x/r, etc.) for units less than 5MVA without having to contact a specific manufacturer? This is for early design stage, which is why the exact transformer name plate info is not required. I've looked on google for a while without luck.

Thanks

 

[davidbeach]

IEEE Red Book.

 

[deltawhy]

thanks, but any free sources?

 

[dpc]

Google for GE GET-3550F. Or contact a transformer manufacturer for typical data.

 

[magoo2]

In the North American market, the standard impedance is 5.75% for kVA ratings greater than or equal to 500. The X/R is highly varible with values between 10 and 20. These values apply to 208 V and 480 V secondaries. See ANSI C57.12 for more details.

 

[deltawhy]

thanks for the info, very helpful

 

[majesus]

Venture here:
http://www.eaton.com/Electrical/Consultants/ConsultingApplicationGuide/idcplg?IdcService=GET_FILE&RevisionSelectionMethod=LatestReleased&Rendition=Primary&dDocName=TB08104003E]Eaton Info[/url]
And go to page 105 in the pdf.