This risk assessment analysis complements the scopes of the Protection Coordination Study. It evaluates the conditions of the power plant in accordance with NFPA 70E-2018.
In order to perform the Arc flash study, it is necessary to have previously performed the short circuit study. In turn, for the coordination of protections it is necessary to know the short circuit level.
We perform three-phase fault simulations, line to ground fault, line to line fault and line to line to ground fault. This allows us to know the short circuit currents at each point of the system, for half-cycle and 5-cycle asymmetrical currents, as well as initial and steady-state symmetrical currents.
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When starting an installation it is necessary to perform a short-circuit evaluation to know the capacities of the equipment to be installed. In addition to determine the fuses and thermomagnetic switches required for proper operation.
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This risk assessment analysis complements the scopes of the Protection Coordination Study. It evaluates the conditions of the power plant according to NFPA 70E-2018 standards.
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This study includes indications of the arcing characteristics produced by a fault in the highest incident energy operating condition for all buses in the plant.
These characteristics include:
Arc-Flash boundary results: distance to be maintained according to the level of personnel training and protective equipment.
Incident energy results: Results obtained through the software of the level of energy that could be released in case of an event.
Personal protective equipment according to incident energy levels.
