Power Systems Test Case Archive

57 Bus Power Flow Test Case

The IEEE 57 Bus Test Case represents a portion of the American Electric Power System (in the Midwestern US) as it was in the early 1960's. The data was kindly provided by Iraj Dabbagchi of AEP and entered IEEE Common Data Format by Rich Christie at the University of Washington in August 1993. Please call any typos to my attention.

The line impedances were a bit hard to read on the (much Xeroxed) printed data and may be incorrect. The data has not been run through a power flow to check the answers. Caveat emptor! And please let me know of any corrections you find necessary.

The 57 bus test case does not have line limits!

Rich Christie - August, 1993