Modeling of Substation Grounding Grid Design Using Lab View Graphical User Interface

Substation design that refers to IEEE Standard 80-2000 can be carried out through manual calculation. Considering that there are lot of data involved used and also repeated calculations, it will be very difficult and requires high accuracy. Therefore, a computer-based computing system is needed to solve this problem. This paper discusses an application modelling of LabVIEW graphical user interface to provide convenience in designing the substation grounding grid. Some options have been developed such as grounding grid resistance calculation method, conductor diameters determination, grounding grid selection with ground rod and without ground rod and weight body. The effect of any changes in design can be known directly and compared with limit of the touch voltage and the step voltage allowed. For validation, the model used data from Std. 802000 and compared with some design model already existed. As a result of this application, grounding grid design process will be easy, more accurate, and faster.