Grounding, Bonding, Lightning &Amp; Surge Protection Of Utilities And Industries
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COURSE DATES AND LOCATIONS
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INTRODUCTION
Earthling is an integral part of any electrical system. Properly selected earthing equipment will accomplish many desirable objectives, such as:
- Improving the system operating characteristics.
- Providing a source of earth fault current relaying.
- Reducing personnel hazards.
Equipment earthing should be differentiated from system earthing since the functions of the two are often confused. A “system earth” is a connection to ground from one of the current carrying conductors of a distribution or wiring system.
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COURSE OBJECTIVES
By the end of the course, you‘ll be able to:
- Learn fundamental principles in the design of grounding systems in substations.
- Solve static electricity-related hazards by grounding and bonding.
- Learn the role of grounding in surge protection of power distribution equipment and sensitive systems.
- How to test and maintain earth electrode & Earthing grid
- Learn the basic principles & importance of earthing of electrical systems.
- Learn the function of power system earthing and the various options available.
- Learn the role of protective grounding in ensuring safety; sizing of grounding conductors.
- Learn the importance of equipotential bonding in ensuring safety.
- Design of ground electrodes, measurement of soil resistivity and ground electrode resistance.
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COURSE AUDIENCE
This course is made for
- Power Systems Engineer
- Project Engineer
- Test Engineer
- illuminating engineer
- Technician, semiconductor development
- Power-distribution engineer
- Controls design engineer
- Circuits Engineer
- Design Engineer
- Electrical Controls Engineer
- Electrical Design Engineer
- Electrical Engineer
- Electrical Project Engineer
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COURSE OUTLINE
Day One
- What is System Earthing.
- Why Use System Earthing.
- Basics of grounding/earthing & Bonding.
- Objectives of equipotential bonding.
- Different types of functional & Protective earthing.
- Electricity shock & hazards & Equipment earthing
- Static charges and the need for bonding.
Day Two
- Systems with an isolated neutral-point.
- Reactance earthed systems.
- Resistance earthed systems.
- Earthed system:
- Effectively earthed system.
- Not effectively earthed system.
- Zigzag earthing transformer.
- Sizing of Earthing resistors & Zigzag transformers.
- To Choose System’s Earthing Point.
- Practice of Earthing.
- Comparison of Different system Earthing Principles
- Earthing & Earth fault protection.
- Different earhing of distribution system arrangements (TT, TN-C, TN-S & IT) as per BS 7671 & IEC 60364.
Day Three
- Static electricity and protection.
- Lightning & surge arresters.
- Transient overvoltages.
- PQ problems & triplen harmonics (Zero phase sequence).
- Ground electrode system.
Day Four
- Substation earthing grid.
- Touch & Step voltages.
- Grounding regulations from various national codes.
- BS 7430 & IEEE 80 Standards.
- Maintenance & testing (3 pin method, 61.8% and slope method).
- Finite Element Method (FEM).
Day Five
- Methods of designing Grounding systems.
- Ground faults.
- Design cases (Grounding module) & Reporting.
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