News & Events

Cat Releases Updated SpecSizer Generator Set Sizing and Specifying Software Tool

Caterpillar Inc. announced the introduction of a new version of SpecSizer, the popular software tool that helps engineers select a competitively sized generator set for electric power projects.

Available now for PC users, SpecSizer version 2.7.0 features an optimized 20-Step Wizard that automatically calculates the least number of steps for building a load scenario. The 20-Step Wizard collects loads, evaluates voltage dip and load demands, and then organizes the loads into steps to help users select a generator set with an optimal rating and footprint that minimizes costs. Along with voltage dip and skVA, the tool now provides an additional method for sizing based on customer-specific frequency dips.

SpecSizer has been updated with technical specifications on several new Cat® power systems introduced this year, including generator sets, Automatic Transfer Switches (ATS), Switchgear and Uninterruptible Power Systems (UPS). The latest version of SpecSizer also features Olympian™ generator sets for markets outside North America, including open generator sets with improved derate capability as well as enclosed units.

In addition to the generator set sizing analysis, SpecSizer provides a concise, customizable text document or guide specification that is dynamically linked to any program-selected or user-selected generator set. SpecSizer also produces a project sizing report with engine, alternator and generator set technical data and a transient performance report that can be distributed electronically.

First introduced in 2006, SpecSizer has been downloaded by more than 5,300 registered users in 138 countries. SpecSizer provides sizing and support in eight languages, including English, Chinese Mandarin, French, German, Italian, Portuguese, Russian and Spanish.

Current users of SpecSizer will receive prompts to auto-update their software, while new users may request a free download of the SpecSizer software by visiting www.cat.com/powergeneration/specsizer.