What Is The Maintenance Of Oil Filled Transformer?

What Is The Maintenance Of Oil Filled Transformer?

Oil-filled transformer maintenance involves de-energizing the unit before performing inspections for dirt, leaks, and loose hardware, checking oil levels and temperatures, cleaning bushings and the transformer shell, listening for abnormal noises, and periodically conducting more in-depth tests like oil quality analysis and insulation checks. Regular record-keeping of all activities is essential for tracking the transformer's condition and ensuring its reliable operation over its lifespan.

 

 

Daily Maintenance

Monitor Temperatures: Check ambient, winding, and oil temperatures to ensure they are within normal operating ranges.

Check Oil Level & Gauge: Verify the oil level gauge and ensure it moves with temperature changes.

Listen for Noise: Listen for any abnormal vibrations or noise, which could indicate issues with the core, cooling system, or coils.

Monitor Load: Compare the load voltage and current to the rated statistics.

 

Weekly/Monthly Maintenance

Visual Inspection: Look for dirt accumulation on the shell and other components.

Clean Bushings: Clean the transformer's bushings to remove dust and debris.

Check for Leaks: Inspect the unit for signs of leaks, particularly around gaskets and weld points, and address them immediately.

 

General Maintenance Practices

Safety First: Always de-energize the transformer before performing any maintenance work.

Record Keeping: Maintain detailed records of all maintenance activities, including dates, observations, and actions taken.

Environmental Control: Keep the environment around the transformer clean and free from excessive humidity or high temperatures.