This tutorial shows how to use the Fault Current Distribution module in ELEK SafeGrid Earthing Software to model an earth fault on an overhead transmission line with an underground cable link.

With the Fall of Potential Test, the resistance of an earthing system is measured using a remote earth electrode. There is a theoretical position of 61.8 % of the separation distance between the measured grid and the remote electrode, which is the correct position for measuring the exact grid impedance for uniform soil resistivity but not for multilayer soils. This tutorial shows ELEK SafeGrid Earthing Software users how to simulate an FOP test.

This video tutorial focuses on the design and modelling of Earthing Systems for Wind Farms and Solar PV Farms. Real-world examples are provided and are explained.

ELEK SafeGrid Earthing Software can perform calculations in the time domain such as for lightning currents. Transient waveforms are composed of many frequency components and Fourier transforms are used. The transient waveform types include IEC 62305, CIGRE, Heidler, Double-exponential, and Custom. The time-domain response of an earthing system can be analysed.

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.

This video (25 min) tutorial shows the main features of SafeGrid Earthing Software for performing an earthing designs and explains the design process.

Example Rolling Sphere Method calculation which shows how to overlay protection systems such as lightning masts and earth wires on a site drawing.

This tutorial shows you step-by-step how to use SafeGrid Earthing Software to perform an earthing design which will show you the design process.

Learn how to calculate the fault currents returning to remote sources via the cable screens or overhead earth wires of substation feeders for an earthing design.