earth leakage fault - comes when unwanted, unused, waste current flowing from a live conductor or terminal to the ground or earth through the ground conductor or any other conductive path.
Cause : In a standard and proper electrical installation(device or equipment), the current should be flowing through the live conductor, neutral conductor, and load with proper balancing. If any unbalancing happens, then it indicates the leakage current.
These are following steps for fault correction :
1. Check wiring , like input connection and output connection.
2. Check earthing, some time improper earthing cause this fault.
3. Check device hardware like control card or power card.
4. Earth leakage occurs in electrical machines such as transformer, motors, etc.
5. In these cases, earth leakage mainly happens due to insulation failure, improper connection, etc.
