I. Introduction:

\(\bullet\) 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. A hardcopy data was provided by Iraj Dabbagchi of AEP and entered in IEEE Common Data Format by Rich Christie at the University of Washington in August 1993.
\(\bullet\) This test case consists of 57 buses, 7 generators and 42 loads. The 57 bus test case does not have line limits!
 

II. Single-Line Diagram:

\(\bullet\) The original diagram is available in III.

III. Files:

\(\bullet\) Original Diagram (600dpi, TIFF Format) [Download]
\(\bullet\) Modified Diagram (PDF Format)  [Download]
\(\bullet\) IEEE Common Data Format (CDF Format) [Download]
\(\bullet\) Extended Information A (PDF & TEXT Formats "Russian Language") [Download]
\(\bullet\) PowerWorld Simulator [Download]
\(\bullet\) MATPOWER [Download]
\(\bullet\) Mathworks MATLAB [Download]

IV. Citation Policy:

If you publish material based on databases obtained from this repository, then, in your acknowledgments, please note the assistance you received by using this repository. This will help others to obtain the same data sets and replicate your experiments. We suggest the following pseudo-APA reference format for referring to this repository:

Ali R. Al-Roomi (2015). Power Flow Test Systems Repository [https://al-roomi.org/power-flow]. Halifax, Nova Scotia, Canada: Dalhousie University, Electrical and Computer Engineering.

Here is a BiBTeX citation as well:

@MISC{Al-Roomi2015,
author = {Ali R. Al-Roomi},
title = {{Power Flow Test Systems Repository}},
year = {2015},
address = {Halifax, Nova Scotia, Canada},
institution = {Dalhousie University, Electrical and Computer Engineering},
url = {https://al-roomi.org/power-flow}
}

V. References:

[1] Rich Christie, "Power Systems Test Case Archive," Aug. 1993, [Accessed Feb. 4, 2015]. [Online]. Available: http://www.ee.washington.edu/research/pstca/pf57/pg_tca57bus.htm 
[2] B. Gasbaoui and B. Allaoua, "Ant Colony Optimization Applied on Combinatorial Problem for Optimal Power Flow Solution," Leonardo Journal of Sciences, vol. 24, no. 14, pp. 1-17, Jan.-Jun. 2009. [Online]. Available: http://ljs.academicdirect.org/A14/001_017.pdf
[3] M. V. Khokhlov, "Test Circuit (translated from Russian language: Тестовые схемы)," 2008 [Accessed Mar. 24, 2015]. [Online]. Available: http://energy.komisc.ru/dev/test_cases/ 
[4] The Illinois Center for a Smarter Electric Grid (ICSEG), "Power Cases," [Accessed Feb. 4, 2015]. [Online]. Available: http://publish.illinois.edu/smartergrid/ieee-57-bus-system/
[5] Ray D. Zimmerman, Carlos E. Murillo-Sánchez and others, "MATPOWER: A MATLAB Power System Simulation Package," [Accessed Mar. 21, 2015]. [Online]. Available: http://www.pserc.cornell.edu/matpower/
[6] Saloman Danaraj, "Power Flow Software in Rectangular Coordinates," Mathworks Simulink File Exchange Center, May 2008, [Accessed Mar. 16, 2015]. [Online]. Available: http://www.mathworks.com/matlabcentral/fileexchange/19961-power-flow-software-in-rectangular-coordinates
[7] Ueda, "WebFlow: Web-Based AC Power Flow Calculation Using PHP," [Accessed Mar. 16, 2015]. [Online]. Available: http://sys.elec.kitami-it.ac.jp/ueda/demo/WebPF/testdata.html