Design of a 7.5 MVA Automated Substation with Fault Analysis Using ETAP Software

Substations are undeniably risk prone environments with a distinctive set of hazards often concealed from the eyes of general people. One footstep in the erroneous direction can lead people too near to functioning equipment, and even an accidental movement of an arm touching a control switch can put the entire area to a grinding halt. So, the study of safety factor is needed in establishing a substation. ETAP is the most extensive analysis tool for the design, automation, simulation, and operation of generation, distribution, and industrial power systems. The study of this work comprises the designing of 7.5 MVA (33/11kV) substation, selection of components, substation base plant with standard simulation – Load flow analysis, Short circuit calculation, Circuit breaker coordination, Protection device coordination.