SHORT CIRCUIT ANALYSIS

4 days
3.2 CEUs
Hands-on
8:00am-4:30pm

Tuition USD $1500

All electrical systems are susceptible to short circuits and the abnormal current levels they create. These currents can produce considerable thermal and mechanical stresses in electrical distribution equipment. Therefore, it's important to protect personnel and equipment by calculating short-circuit currents during system upgrade and design. Because these calculations are life-safety related, they're mandated by 110.9 of the NEC, which states: "Equipment intended to interrupt current at fault levels shall have an interrupting rating sufficient for the nominal circuit voltage and the current that is available at the line terminals of the equipment. Equipment intended to interrupt current at other than fault levels shall have an interrupting rating at nominal circuit voltage sufficient for the current that must be interrupted."

Learning Objectives
• Review vector math and complex numbers

• Review applicable IEEE/ANSI recommended practices

• Symmetrical components theory and application

• Impedence diagram development

• Short circuit model development including three-phase, SLG, L-L and LLG fault

• Calculation methods for symmetrical and asymmetrical short circuit currents

• Manual point-to-point balanced and unbalanced short circuit analysis

• Build computer-based short circuit analysis using SKM System Analysis, Inc.^TM A-FAULT^TM demo software

Who Should Attend
Designed for engineers and supervisors responsible for power system fault analysis.

Requirements
Requires working knowledge of basic electricity and math skills. Bring a scientific calculator and laptop with Windows^reg; XP, NT or Vista, Pentium II 300+ Mhz, 140+ MB hard drive space, 64+ MB of RAM, CD-ROM drive and administrative privileg

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