IEEE Transformer Loading Capability Tables
IEEE Transformer Loading Capability Tables
(OP)
Has anyone delt with Transforming Loading Capability Tables recently?
The IEEE standard C57.91-1981 has tables for these values already formed. However, in the revised standard, the tables are removed and they recommend writing a computer program to calculate the values. I'm confortable with the programming side but am not sure about the calculation. Any help would be appreciated. Thanks.
The IEEE standard C57.91-1981 has tables for these values already formed. However, in the revised standard, the tables are removed and they recommend writing a computer program to calculate the values. I'm confortable with the programming side but am not sure about the calculation. Any help would be appreciated. Thanks.






RE: IEEE Transformer Loading Capability Tables
It could be that changes in insulating (and core) materials made tables impractical. Long Shot — C57.91 working group has an online macro-based temp-rise spreadsheet at http://grouper.ieee.org/groups/transformers/subcommittees/insulation_life/c57.91/C57_91_Calc_13Oct03.xls
RE: IEEE Transformer Loading Capability Tables
http://standards.ieee.org/cgi-bin/status?c57.91
http://www.cooperpower.com/Library/pdf/R210906.pdf
for more info