By Miszaina Osman. Good substation earthing is essential for safe and reliable power systems. The main objective of this research ... ePrints Soton Show all Grounding (Earthing) Analysis: Evaluates the performance of grounding grids, calculating parameters like earth potential rise (EPR) , step and touch voltages, and grid impedance to ensure personnel safety during faults. Soil Structure Interpretation: Interprets field measurements to create multi-layer or heterogeneous soil models, which are critical for accurate soil resistivity testing . Electromagnetic Interference (EMI): Analyzes the effects of High Voltage (HV) lines on nearby infrastructure, such as pipelines or fences , calculating induced and impressed voltages. Lightning & Transients: Simulates the impact of lightning strikes and other transient events on power lines and substations. Key Software Modules CDEGS is modular, with different packages tailored for specific engineering needs: MALT: Used for steady-state grounding analysis of simple or complex grids buried in stratified soil. MALZ: Analyzes frequency-dependent grounding systems, useful for larger grids where inductive and capacitive effects are significant. HIFREQ: A powerful module for high-frequency electromagnetic field analysis, used for complex EMI and transient studies. RESAP: Specifically for
Short for , CDEGS is a powerful software package developed by Safe Engineering Services & technologies ltd (SES) . It is widely considered the industry benchmark for analyzing grounding systems and electromagnetic interference. By Miszaina Osman
Before a grounding grid is designed, engineers must understand the earth they are working with. CDEGS interprets soil resistivity measurements to create a multilayer soil model (e.g., a top layer of loam over a layer of clay and bedrock). Accurate soil modeling is the foundation of any safe grounding design. Lightning & Transients: Simulates the impact of lightning
Could you please clarify what you're asking? For example: Before a grounding grid is designed