A detailed Air Cooled Transformer WEEKLY preventive maintenance checklists

General Safety Precautions

Visual Inspection

  • Look for dents, scratches, or other physical anomalies.
  • Check for any signs of structural compromise.
  • Examine the paint for bubbling or peeling.
  • Assess the condition of mounting points.
  • Inspect the ground beneath the transformer for oil stains.
  • Check seals and gaskets for wear or damage.
  • Look for any wet spots on the transformer body.
  • Ensure all fluid levels are within normal ranges.
  • Remove any visible dirt or debris from fins.
  • Inspect fan blades for buildup that may affect performance.
  • Ensure that air can flow freely through fins.
  • Check for obstructions around fan areas.
  • Inspect metal connections for rust or pitting.
  • Clean any corroded areas with appropriate solutions.
  • Ensure all connections are tight and secure.
  • Use a multimeter to check for proper conductivity.
  • Inspect labels for fading or damage.
  • Replace any illegible or missing labels.
  • Ensure warning signs are positioned correctly.
  • Verify compliance with safety regulations.
  • Check for any visible damage on the enclosure.
  • Look for gaps that may expose internal components.
  • Assess the overall stability of the enclosure.
  • Document any findings for future reference.
  • Verify that the transformer is level.
  • Check for secure fastening to the base.
  • Inspect mounting brackets for wear or damage.
  • Ensure no movement occurs during operation.
  • Inspect hinges and latches for functionality.
  • Ensure panels are not warped or damaged.
  • Check for tight seals to prevent contamination.
  • Document any access issues.
  • Inspect the area around the transformer for nests.
  • Check for droppings or other signs of animals.
  • Ensure that any vegetation is trimmed back.
  • Consider installing deterrents if necessary.
  • Inspect grounding connections for corrosion.
  • Verify that grounding rods are properly driven.
  • Check continuity of grounding system.
  • Assess grounding wire insulation for wear.
  • Check all wire connections for tightness.
  • Inspect insulation on wires for fraying.
  • Look for signs of heat damage on connectors.
  • Replace any damaged components immediately.
  • Inspect insulation for cracks or brittleness.
  • Check for any exposed wiring.
  • Ensure that insulation meets safety standards.
  • Document any issues found.
  • Inspect intake and exhaust for blockages.
  • Ensure adequate space around vents.
  • Clean any debris that may restrict airflow.
  • Check for proper airflow during operation.
  • Inspect surfaces for dust buildup.
  • Use appropriate cleaning methods to remove dust.
  • Ensure that dust does not interfere with operation.
  • Check filters and replace if necessary.
  • Inspect surrounding area for combustible materials.
  • Remove any flammable items found.
  • Ensure compliance with safety regulations.
  • Document the condition of the area.

Electrical Connections

Cooling System Check

Temperature and Performance Monitoring

Documentation and Reporting

Final Checks

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