Earthling of Utility and Industrial Distribution System Training

• The basic principles of grounding of electrical systems
• The function of power system grounding and the various options available
• Role of protective grounding in ensuring safety; sizing of grounding conductors
• Importance of equipotential bonding in ensuring safety
• Design of ground electrodes, measurement of soil resistivity and ground electrode resistance
• Fundamental principles in the design of grounding systems in substations
• Solving static electricity-related hazards by grounding and bonding
• Role of grounding in protecting substation structures from lightning hazard
• Role of grounding in surge protection of power distribution equipment and sensitive systems
• Noise in electrical systems and the role of grounding in noise mitigation

COURSE CONTENT  

Basics of grounding

• Bonding
• Role of grounding in lightning protection
• Ground electrodes and factors affecting their efficiency
• Grounding issues in outdoor substations
• Grounding for static charges
• Surge Protection
• Importance of grounding in mitigation of noise in sensitive circuits
• Importance of Local Codes

Power Supply System Grounding

• Types of system grounding
• Ungrounded systems
• Solidly grounded systems
• Impedance grounding using neutral reactor
• Resonant grounding using neutral reactor
• Impedance grounding through neutral resistance
• Classification of supply systems based on grounding
• Point of grounding
• Other challenges

Protective Grounding

• Electric shock, its cause and effects
• Direct and indirect contact
• Touch and step potential
• Role of protective grounding in minimizing the shock hazards
• Equipotential bonding
• Protective grounding conductors and installation
• Ground fault protection
• System classification based on system/protective grounding

Ground Electrode Systems

• Soil resistance and factors affecting soil resistivity
• Measurement of soil resistivity
• Resistance of ground electrode and distribution of resistance in surrounding soil layers
• Electrode current capacity
• Ground electrode configurations
• Parallel electrodes
• Ground electrode resistance measurement
• Chemical electrodes
• Concrete encased electrodes and splicing methods
• Corrosion of buried electrodes
• Grounding system maintenance

FOR WHOM:

Works, Services and Maintenance Personnel

TRAINING METHODOLOGY

The training methodology combines lectures, discussions, group exercises and illustrations. Participants will gain both theoretical and practical knowledge of the topics. The emphasis is on the practical application of the topics and as a result participant will go back to the workplace with both the ability and the confidence to apply the techniques learned to their duties.

This course is available in the following locations:

Nigeria - $5500
Rwanda - $7500
UK - $8500
USA - $8500