Understand Earthing and Grounding in Power System

Earthing & Grounding:

Earthing System or Grounding System in an electrical network work as a safety measure to protect human life as well as equipment, the main objective of the Earthing system is to provide an alternative path for dangerous currents to flow so that accidents due to electric shock and damage to the equipment can be avoided.

1. Going through concept of Grounding Vs Earthing

2. What is it mean by Earthing, what need to be earthed

3. Visual inspection of distribution transformer and identifying the earth connection points in a substation

4. Visual Inspection of Generator and Identifying Grounding

5. Visual Inspection of Gas Insulated Substation and Identifying Earthing

6. Why to Earth or Ground, Advantages of Earthing

7. Maintenance Earthing

8. Earthing for Human and equipment safety, Mechanical forces during sub-transient

9. Definition of Earthing and basic concept

10. Objective of Earthing System

11. Good Earthing Characteristics, Low Impedance

12. Good Earthing System, Standard Earth Resistance Value

13. Good Earthing System, Corrosion Resistant, Mechanical strength

14. Static Charge Grounding

15. Good Earthing and Ground Potential Rise

16. Earthing and lighting protection

17. What Need to Earth

18. What is Bonding and why it is different from Earthing

19. Soil Characteristics, Sphere of influence, Earth Rod, Resistivity

20. Earthing Design Concept

21. Earthing Material and Earthing Base Design

22. How make joints in Earthing, Exothermic Welding

23. Over View of Earthing System

24. Voltage Gradient and Ground Potential Rise

25. Ground Potential Rise

26. Step and touch Voltage

27. Transfer Potential

28. Soil Resistivity

29. How to Measure Soil Resistivity

30. Earthing Grid Conductor Sizing

31. Step and Potential limits

32. Surface Layer Material and why gravel is used

33. Maximum Grid Current

34. Earthing Compound

Best Regards