Transformers are among the most critical and expensive assets in any electrical distribution network. Proper maintenance can significantly extend their service life and prevent costly failures.
1. Regular Oil Testing
Conduct dissolved gas analysis (DGA) every 6-12 months to detect early signs of internal faults.
2. Monitor Temperature
Keep winding and oil temperatures within rated limits using thermal monitoring systems.
3. Check Bushings and Gaskets
Inspect for oil leaks, cracks and signs of deterioration regularly.
4. Cooling System Maintenance
Clean radiators and fans to ensure efficient heat dissipation.
5. Buchholz Relay Testing
Test protection relays periodically to ensure they trip correctly during faults.
Following a structured maintenance schedule as recommended by RRR Electricals engineers can add years to your transformer fleet lifespan.
Very informative article. We follow a similar DGA schedule for our substation transformers.
Great tips, thank you for sharing this checklist.