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oil filled transformer data

oil filled transformer data

oil filled transformer data

(OP)
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

RE: oil filled transformer data

IEEE Red Book.

RE: oil filled transformer data

(OP)
thanks, but any free sources?

RE: oil filled transformer data

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

RE: oil filled transformer data

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.

RE: oil filled transformer data

(OP)
thanks for the info, very helpful

RE: oil filled transformer data

Venture here:
Eaton Info
And go to page 105 in the pdf.

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