![]() Results will be used to make recommendations for mitigation of arc flash hazards. Protective device coordination should be performed to ensure selection and arrangement of protective devices limits the effects of an over-current situation to the smallest area. We perform this study in accordance with ANSI Std. Comparison of equipment ratings with calculated short circuit and operating conditions will identify underrated equipment. These calculations will be used to determine the bolted fault current, which is essential for the calculation of incident energy and interrupting ratings of your equipment. Wells Engineering utilizes SKM Power Tools for Windows for system modeling & Analysis.Ī short circuit study is required to determine the magnitude of current flowing throughout the power system at critical points at various time intervals after a “fault” occurs. If you already have one-line diagrams, we will update the data and work from them, if possible. Accurate electrical system drawings are necessary to identify power sources, voltage levels, electrical equipment and protective devices. One-line diagrams must be developed or updated to show the current configuration and modes of operation for the power system.
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