Transcription of Introduction to Short Circuit Analysis
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Introduction to Short Circuit Analysis
PDH Course E204 Page 1 of 40 Introduction to Short Circuit Analysis Course Content A Short Circuit is a low-resistance connection established by accident or intention between two points in an electric Circuit . This excessive electric current potentially causes Circuit damage, overheating, magnetic stress, arcing, fire or explosion. The amount of current that is available in a Short Circuit is determined by the capacity of the system voltage sources and the impedances of the system, including the fault.
heat energy. This heat is transferred to the plasma, which rapidly expands away from the source of supply. Tests have shown that heat densities at typical working distances can exceed 40cal/cm² and the temperatures can exceed 20,000°F. At typical arc fault durations of less than one second, a heat
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