Short circuit analysis is performed so that existing and new equipment ratings were sufficient to with stand the available short circuit current. This short circuit analysis can be done either through hand calculations or through known software like NEPLAN.
Using NEPLAN we can perform short circuit studies on electrical systems in a quick time and effective manner in four steps.
These short circuit studies are performed using power system software as per IEEE standards. For larger systems, these short circuit calculations to be performed for both switch gear ratings and relay settings. Knowledge of the computational methods of power system analysis is essential to engineers responsible for planning, design, operation, and troubleshooting of distribution systems. A short-circuit study is an analysis of an electrical system that determines the magnitude of the currents that flow during an electrical fault. Comparing these calculated values against the equipment ratings is the first step to ensuring that the power system is safely protected. Once the expected short-circuit currents are known, a protection coordination study is performed to determine the optimum characteristics, ratings and settings of the power system protective devices.
These short circuit calculations must be maintained and periodically updated in order to protect people and equipment.
Short circuit studies are performed in NEPLAN by introducing different faults like three phase fault, single phase to ground etc.
We build the network drawing by collecting the data from facility and performing short circuit studies using network analysis software.