Modeling of Electric Potential Assessment for Substation Grounding Grid Under Lightning Strikes Using LabVIEW

Disturbances caused by lightning surges cause an abrupt increase in voltage. The substation contains a variety of equipment that are susceptible to disruptions, which reduces the reliability of the distribution of electric power and causes problems in the distribution of electric power. Lightning strikes may cause outages that not only damage the equipment but also reduce the reliability of the power system. Therefore, a security system is required to This study discusses the effects of lightning-surge-induced transient interruptions at substations. The purpose of this study was to determine the effect of the grounding area of the substation on the Ground Potential Rise (GPR) when injection currents of 20 kA, 30 kA, and 50 kA were applied. LabVIEW 2017 was used to investigate the parameters. The results of this study, presented as a calculation application, can be used to assess the variables under investigation and then compared with manual calculations to determine the difference in application values. A comparison of the two revealed that there were very few discrepancies between the findings of the manual calculations and those of the simulation.