MelTran, Inc.

Experts in Electrical Power System Transients

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MelTran generally uses the Alternative Transients Program (ATP), OpenDSS and/or CYMDIST software for power system studies and modeling projects. We are also familiar with other software tools, and can often convert power system models from one tool to another. For custom programming, we are proficient in C/C++, C#, Visual Basic and VBA, Java, and SQL on various Web, Windows, and Linux platforms.

MelTran is an administrator and key contributor for several open-source software projects:

  • IEEE Flash, for estimating lightning flashover rates on overhead transmission and distribution lines.
  • OpenETran, an electromagnetic transients program customized for lightning surges and substation insulation coordination.
  • KLUSolve , a sparse matrix solver for electric power systems, based on the KLU library from University of Florida.
  • OpenDSS , an electric power Distribution System Simulator (DSS) for supporting distributed resource integration and grid modernization efforts.

MelTran staff have also contributed to the development of another widely used free software tool:

  • TOP, for plotting simulation program outputs and recorded instrument data from various sources.

Currently, MelTran is responsible for the following membership-based software tools:

  • UVIG DG Evaluation Toolbox, for evaluation of wind turbines and photovoltaic generation connected to distribution primary feeders.
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