Scheduled (Preventive) Maintenance
Routine checks to prevent failures
- Visual inspections: Check for corrosion, oil leaks, unusual noise, cracks in insulators.
- Cleaning: Dust, salt, or bird droppings can cause tracking and flashovers.
- Tightening connections: Prevent overheating and arcing at busbars, terminals, and grounding points.
- Testing protective relays: Ensuring protection systems (overcurrent, differential, distance relays) work correctly.
- Lubrication: Moving parts of disconnectors and circuit breakers.
