DIESEL LOCO - Power Ground
Earth fault occur in power circuit is called power ground.
When earth faults in traction motor, traction motor cables, BKT, REV, power contactors, GR1 operates with indications. Check following items -
1. Traction motor cables are tightened properly.
2. If there are any metal or wire pieces in between BKT/Rev./Power contactors, remove it.
3. Check the wire connection of load meter.
4. If there is smell or smoke from any TM, isolate it.
