This is a crucial topic for line maintenance. Faults are typically classified into two main categories:

• Symmetrical Faults: These are three-phase faults where all phases are short-circuited together. These are the most severe but least common type of fault.

• Asymmetrical Faults: These are more common and include:

  • Single Line-to-Ground (LG) Fault: The most frequent type, where one conductor makes contact with the ground.

  • Line-to-Line (LL) Fault: A short circuit between two conductors.

  • Double Line-to-Ground (LLG) Fault: A short circuit between two conductors and the ground.

Understanding these classifications is vital for our customers who use our products for the maintenance and repair of these power lines.