Installation and Maintenance of Grounding Networks for 30/11 kV Stations

Day 1: Introduction to Grounding Systems

• Purpose and benefits of grounding.

• Types of grounding systems (TN, TT, IT).

• Overview of grounding in 30/11 kV substations.

Day 2: Principles of Electrical Grounding

• Electrical theory related to grounding.

• Ground resistance and its significance.

• Fault currents and their impact on grounding systems.

Day 3: Grounding Network Design for 30/11 kV Stations

• Key design considerations for substations.

• Soil resistivity and its effect on grounding.

• Design tools and software for grounding networks.

Day 4: Standards and Regulations

• International grounding standards (e.g., IEEE, IEC).

• Local regulatory requirements for grounding networks.

• Ensuring compliance with safety codes.

Day 5: Installation Techniques

• Installation of ground rods, grids, and mats.

• Connecting equipment to the grounding network.

• Tools and materials for effective installation.

Day 6: Testing and Inspection

• Methods for measuring ground resistance (e.g., fall-of-potential, clamp meters).

• Testing continuity of grounding systems.

• Ensuring the integrity of connections and conductors.

Day 7: Maintenance of Grounding Networks

• Routine inspections and checks.

• Addressing corrosion and wear in grounding components.

• Upgrading and enhancing existing networks.

Day 8: Troubleshooting Grounding Issues

• Identifying common grounding problems.

• Analyzing and resolving high ground resistance.

• Mitigating step and touch potential hazards.

Day 9: Grounding in Special Conditions

• Grounding in high-resistance soils.

• Techniques for substations in urban and industrial environments.

• Managing grounding in extreme weather conditions.

Day 10: Practical Applications and Case Studies

• Hands-on installation and testing in a simulated environment.

• Real-world case studies on grounding failures and successes.

• Participant project: Designing a grounding system for a 30/11 kV substation.