singlelinetoground
Single line-to-ground, often abbreviated as SLG or SLG fault, is a common electrical fault in power systems where exactly one phase conductor makes an unintended conductive connection to the earth while the other phases remain intact. This type of fault occurs in both overhead transmission and distribution lines and in underground cables, and it is one of the most frequent fault types in many networks.
Causes and characteristics. SLG faults typically arise from insulation breakdown due to aging, moisture, contamination, mechanical
Grounding and protection. The behavior of SLG faults is influenced by the system’s grounding scheme, such as
Impact and analysis. SLG faults cause voltage sags and large unbalances, transient overvoltages, and potential equipment