Tutorials

The Lightning Protection Module in SafeGridTM allows the user to overlay lightning protection systems (LPS) such as lightning masts and earth wires over a PDF schematic. Using the Rolling Sphere Method (RSM), the Lightning Protection Module calculates the area protected by the masts and wires based on factors such as mast height, placement and the protection level used which determines the sphere radius. To access this module, open the SafeGridTM Earthing Software and select the Add-ons tab. Then, select the Lightning Protection Module.

Earthing design plays a vital role in providing safety of personnel and equipment in power system.

The touch and step voltages associated with an earthing system are directly proportional to the magnitude of the fault current flowing into and directly discharges into the soil by the earthing system. Therefore, it is important to determine how much of the fault current returns to remote sources via the cable screens or the overhead earth wires of the lines feeding the substation.

SafeGrid can model custom earthing arrangements of any size or shape in 2D or 3D. You can specify the grid using the in-built editor tools or you can import grids drawn in AutoCAD.

The PDF underlay tool is an addon to the Display Results module of SafeGrid. This tool allows you to overlay the surface, touch or step voltage plots on your site drawings.