Develop a collection of Windows-based software tools to support routine distribution engineering operations. Included are applications for guy tension calculation, transformer loading analysis, cable pulling tensions, overhead line design (sag, blowout, loading), voltage drop and flicker analysis, and others. Stressed are user convenience and ease of customization to individual utility preferences.

Deliverables: Guy Tension Calculator, Excel spreadsheet application, beta version, 2/99.

Develop a graphic-oriented, user-friendly, Windows-based software to support the electrical design of single-phase secondary systems. Program allows user to "draw in" a radial circuit topology with multiple layers of connection nodes, and up to 25 loads. Program assists designer in transformer selection of the appropriate transformer rating. Service voltage regulation, transformer and secondary cable loading, voltage flicker, and service short-circuit currents are easily calculated

Develop a methodology and supporting software to generate decision criteria which can be used by a utility to make a rational, economic-based decision on whether to scrap or repair a transformer which has been removed from service.

Enhance the capabilities of the Cable Electrical Parameters Software (CEPS), developed previously in Project 6-6, to include secondary cables and paper-insulated, lead-covered primary cables.

Develop and deploy a web-based database to gather reports of flashovers of separable connectors (elbows and insulated caps) from the utility industry. Emphasis will be on flashovers occurring during lightly-loaded or unloaded conditions. Data will be gathered describing the equipment, the switching operation, and system characteristics. The gathered data will be periodically analyzed and results presented.

Perform full-scale field testing to confirm the analytical predictions of cable temperature rise (and resulting need for cable derating) due to heat sources, such as other cables, crossing or in parallel to a cable for a short distance. Included are tests of temperature rise in the short tap sections at padmounted equipment where incoming and outgoing cables may be laid in the same trench for the distance between the equipment and the main cable trench. Previous analytical work shows the need for significant derating in this situation.

Provide a tutorial seminar reviewing the significant findings of DSTAR research and development. A portion of this seminar will be open to all utilities, and a portion containing the most critical facts will be limited to participants from the funding utilities.