Human factors aspects of power system voltage contour visualizations

Thomas J. Overbye, Douglas A. Wiegmann, Aaron M. Rich, Yan Sun

Research output: Contribution to journalArticlepeer-review


This paper presents experimental results associated with human factors aspects of using color contours to visualize electric power system bus voltage magnitude information. Participants were divided into three groups: the first group saw only one-line numeric data, the second only one-line contour data, while the third saw both. The purpose of the experiment was to determine how quickly participants could acknowledge low-voltage violations and perform corrective control actions. Results indicated the contour only visualization resulted in the quickest voltage violation acknowledgment, while the numeric data only visualization resulted in the quickest solution times. Testing was done using a t modified version of the IEEE 118-bus system.

Original languageEnglish (US)
Pages (from-to)76-82
Number of pages7
JournalIEEE Transactions on Power Systems
Issue number1
StatePublished - Feb 2003


  • Contouring
  • Human factors
  • Power system operations and planning
  • Voltage visualization

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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