From this course, you will learn:
• A wholesome understanding of all concepts related to grounding system design and application
• Enhanced grounding design skills that are market-ready and can be used in the field to protect power systems
• The necessary techniques and methods that are used in ground electrical systems and devices
• Lightning and surge protection
• Analysing and calculating the required grounding systems for power substations and networks
• Evaluating risks and coming up with mitigation techniques as they relate to power systems
• Soil testing and layers classification
• Selection of earthing rods and quality determination
• Examining substations to ensure safety guidelines are followed.
Course Content
Why grounding systems are important?
• Ground electrodes
• Impact of lightning on power networks and devices
• Types of electrical faults
• Arcing in power systems
• Bonding
• Power noise avoidance
• Elimination of static charges by grounding
• Surge protection
• Power lines and lightning relation
• Spark Energy and ignition hazard
• Evaluation and handling static charges
• Ligtning strikes handling
• Grounding design fundamentals
• Static charges build up
• Soil resistivity analysis
• Consequences of power faults
Grounding systems
• TT Systems
• TN Systems
• TN-C Systems
• Protection devices
• Thermal reaction due to resistance
• Shock hazard
• Solidly grounded systems
• Resistance Grounding Systems with NER utilisation
• Impedance Grounding with Neutral Reactor use
• Touch Potential
• Surge protection using Grounding systems
• TN-S System
• TN-S-C Systems
• Earth fault protection
• Metal enclosure for Grounding
• Step potential
• Induced Voltage handling
• EMI Suppression
• Ungrounded Systems
Grounding Protection Methods/Techniques
• Types of circuit breakers
• IDMT O/C & E/F protection
• Overcurrent Protection
• Overvoltage Protection
• Earth Fault Protection
• Per Unit Measure
• Sequence Networks
• Protection Criteria
• Fuse Utilisation
• Relay Systems
• Transformer Protection
• Measuring Transformers
Ligtning Protection
• Electrostatic
• UPS Usage
• Capacitative Coupling
• Electrical Noise categorization
• Equipotential Bonding
• Power system surges
Risk mitigation
• Electrical Noise handling
• Grounding Loop mitigation
• Electrical Harmonics handling
• Lightning Arrestors installation
• Surge Arrestors
• Electrical Principles for surge handling
• Shielded Transformer Isolation
• Grounding Loops as a source of Electrical Noise
Effective Grounding Systems
• Ground Fault Current handling
• HV substation and lines grounding
• LV and MV substation and lines grounding
• Outdoor HV substation grounding
• Soil Resistivity evaluation and calculations
• Lightning probability
• Lightning incidence handling
• Lightning risks mitigation
• Design consideration for Effective Grounding
• Transferred current and voltage
Analysis and Evaluation
• Grounding System approach
• Chemical corrosion of Grounding rods
• Earthing rods resistance measurement
• Multiple earthing rods utilization
• Parallel Grounding
• Dingle rods resistance
• Soil resistance analysis and measuring techniques
• Soil resistance results in interpretations
• Soil resistance concerning Grounding
Resistivity of Surface Materials
• Concrete
• Crusher granite
• Washed granite
• Washed limestone
• Asphalt
• Wet Organic Soils
• Dry Organic Soils
• Sand and Gravel
• Shale’s
• Bentonite
• Clay
• Slates
Grounding System Design
• Grounding System Data Collection Techniques
• Data analysis methods
• Noise Discharge
• Using grounding systems
• Human safety
Methodology
The training methodology integrates lectures, interactive discussions, collaborative group exercises, and illustrative examples. Participants will acquire a blend of theoretical insights and hands-on practical experience, emphasizing the application of learned techniques. This approach ensures that attendees return to their professional environments equipped with both the competence and self-assurance to effectively implement the acquired skills in their responsibilities.
DATE:
1ST BATCH: 4th – 7th Mar, 2025
2ND BATCH: 12th – 15th Aug, 2025
25, Queen street, Alagomeji Bus Stop, Yaba, Lagos