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 An electrical short circuit analysis verifies that protective equipment in your electrical system is adequate to clear any fault that could develop during equipment or wiring failure.
DYMAX's analysis determines the maximum electrical short circuit current in any of your circuits. It includes the let-through current from the incoming power source as well as current contributions from rotating machinery connected in adjacent circuits. Rotating equipment not only introduces significantly higher currents during starting periods, but also can produce short circuit currents in addition to those of primary source let-through currents.
When a rotating machine finds its terminals suddenly connected to an external fault, it will briefly act as a generator and feed the fault. This knowledge is necessary to correctly apply overcurrent devices and other protective relaying, because it dictates what interrupting capacities are needed and what instantaneous current trips must be applied. It is also needed for the coordination study . One-line diagrams are necessary references while doing this work.
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