Air Cooled Transformer Daily, Weekly, Monthly, preventive maintenance checklists
Daily Maintenance Checklist
- Examine the exterior for any visible fluid leaks.
- Look for signs of rust or corrosion on surfaces.
- Check seals and gaskets for integrity.
- Document any findings for further action.
- Inspect intake grilles for dust or blockages.
- Remove any debris or foreign objects found.
- Ensure exhaust paths are clear and unobstructed.
- Verify that airflow is sufficient for cooling.
- Use a thermometer to measure transformer temperature.
- Record ambient temperature near the transformer.
- Compare readings with manufacturer’s specifications.
- Document any deviations from normal operating parameters.
- Listen for fan operation sounds.
- Check for proper airflow around the fans.
- Inspect fan blades for damage or obstruction.
- Ensure that control signals to fans are functioning.
- Listen for any abnormal sounds during operation.
- Place a hand on the transformer to feel for vibrations.
- Investigate any irregularities immediately.
- Record findings for maintenance review.
- Check that all indicator lights are lit as expected.
- Replace any burned-out bulbs immediately.
- Ensure warning lights display appropriate statuses.
- Document any malfunctioning lights for repairs.
- Check all terminal connections for tightness.
- Look for discoloration or burnt marks indicating overheating.
- Use a torque wrench to ensure proper fastening.
- Document any issues for follow-up maintenance.
- Inspect all display screens for clarity and functionality.
- Check for any error messages or warning indicators.
- Ensure all buttons and switches respond appropriately.
- Report any malfunctions to the maintenance team.
- Locate the oil reservoir and remove the dipstick.
- Check the oil level against the marked indicators.
- Top up oil if levels are below the minimum mark.
- Dispose of any waste oil according to regulations.
- Look for nests, droppings, or other wildlife signs.
- Check for any damage to insulation or wiring.
- Consider installing deterrents if pests are present.
- Report findings to site management.
- Remove any loose debris using a broom or vacuum.
- Wipe down surfaces with a damp cloth if necessary.
- Ensure air vents are clear of obstructions.
- Schedule regular cleaning to maintain airflow.
- Inspect ground wires and connections visually.
- Use a multimeter to check for continuity.
- Clean any corroded connections with a wire brush.
- Apply protective coating if necessary.
- Access the alarm log system on the control panel.
- Note any recent alerts and their timestamps.
- Investigate any unresolved issues immediately.
- File a report summarizing findings.
- Initiate emergency shutdown procedures as per protocol.
- Confirm that all systems respond as expected.
- Reset systems after testing and document results.
- Report any failures to the maintenance team.
- Inspect all safety signs for visibility and readability.
- Replace any damaged or faded signs immediately.
- Ensure that signage is positioned at eye level.
- Confirm compliance with safety regulations.
- Check for standing water or drainage issues.
- Inspect the area for overgrown vegetation.
- Identify any debris that could pose a risk.
- Report hazards to site management for remediation.
- Record the current power output readings.
- Compare readings against manufacturer specifications.
- Identify any discrepancies and investigate causes.
- Document findings and follow up on issues.
- Inspect fences and barriers for any damage.
- Check that gates are functioning and locked.
- Ensure signage is in place around barriers.
- Report any damages for immediate repair.
Weekly Maintenance Checklist
- Examine all terminals and connectors.
- Look for discoloration or oxidation.
- Check for loose connections or fraying wires.
- Ensure that connections are tight and secure.
- Remove air filters carefully.
- Use compressed air or a vacuum to clean.
- Inspect ducts for any obstructions.
- Reinstall filters ensuring a proper fit.
- Activate control panels and monitor responses.
- Check alarm indicators for proper function.
- Simulate fault conditions to test alarms.
- Document any irregularities observed.
- Examine logs for unusual readings.
- Identify any recurring issues or patterns.
- Note deviations from standard operating parameters.
- Discuss findings with maintenance team.
- Inspect grounding rods and connections.
- Look for signs of corrosion or damage.
- Test resistance of grounding system.
- Ensure all connections are tight.
- Use a megohmmeter for testing.
- Record insulation resistance values.
- Look for values below recommended thresholds.
- Address any issues found immediately.
- Check for dents, rust, or corrosion.
- Inspect seals and gaskets for integrity.
- Ensure that the enclosure is securely fastened.
- Document any necessary repairs.
- Observe fan operation visually.
- Listen for irregular sounds like grinding.
- Check for vibrations or excessive heat.
- Test pump operation for flow consistency.
- Locate oil level gauges.
- Ensure levels are within safe operating range.
- Top up fluids as necessary.
- Inspect for leaks around seals.
- Inspect all labels for wear or fading.
- Replace any damaged or illegible labels.
- Verify that all information is current.
- Keep a record of any replacements made.
- Use a thermometer for temperature readings.
- Check humidity levels with a hygrometer.
- Record values in maintenance logs.
- Identify any environmental concerns.
- Test operation of circuit breakers.
- Check for tripping or overheating.
- Ensure protective devices are securely mounted.
- Document any findings or repairs needed.
- Inspect the area surrounding the transformer.
- Remove any debris or obstructions present.
- Ensure clear access for maintenance personnel.
- Keep the area tidy and organized.
- Manually operate louvers/dampers to test.
- Check for smooth movement without obstruction.
- Ensure they close fully when not needed.
- Document any malfunctions.
- Test each interlock mechanism.
- Ensure they activate during faults.
- Check for any signs of wear or damage.
- Report any failures for immediate attention.
- Run a load test on backup systems.
- Check battery voltage and connections.
- Inspect generator for fuel and oil levels.
- Document performance and any issues.
Monthly Maintenance Checklist
- Inspect for physical damage or signs of wear.
- Look for leaks, rust, or corrosion on surfaces.
- Ensure there are no obstructions around the transformer.
- Check for adequate clearance as per specifications.
- Locate coolant reservoir and check current levels.
- Add coolant to the appropriate fill line using specified type.
- Inspect for leaks in coolant lines or connections.
- Record the coolant level in maintenance logs.
- Use calibrated equipment to measure current temperatures.
- Compare readings with set points and adjust accordingly.
- Check alarm functionality by simulating high/low temperature conditions.
- Document results and any adjustments made.
- Remove dust and debris from the radiator surfaces.
- Use a soft brush or vacuum for delicate areas.
- Check for any physical damage to fins.
- Ensure airflow is not obstructed around the radiators.
- Inspect for cracks, dents, or signs of wear.
- Check seals and gaskets for integrity and proper fit.
- Ensure protective coatings are intact.
- Document any necessary repairs or replacements.
- List all issues found during inspections.
- Prioritize repairs based on urgency and safety.
- Assign tasks to maintenance personnel.
- Record actions taken in the maintenance log.
- Inspect for physical damage or signs of wear.
- Look for leaks, rust, or corrosion on surfaces.
- Ensure there are no obstructions around the transformer.
- Check for adequate clearance as per specifications.
- Locate coolant reservoir and check current levels.
- Add coolant to the appropriate fill line using specified type.
- Inspect for leaks in coolant lines or connections.
- Record the coolant level in maintenance logs.
- Use calibrated equipment to measure current temperatures.
- Compare readings with set points and adjust accordingly.
- Check alarm functionality by simulating high/low temperature conditions.
- Document results and any adjustments made.
- Remove dust and debris from the radiator surfaces.
- Use a soft brush or vacuum for delicate areas.
- Check for any physical damage to fins.
- Ensure airflow is not obstructed around the radiators.
- Inspect for cracks, dents, or signs of wear.
- Check seals and gaskets for integrity and proper fit.
- Ensure protective coatings are intact.
- Document any necessary repairs or replacements.
- List all issues found during inspections.
- Prioritize repairs based on urgency and safety.
- Assign tasks to maintenance personnel.
- Record actions taken in the maintenance log.
- Check all connections for tightness and security.
- Look for discoloration or melting on wires.
- Clean any corroded connections with appropriate tools.
- Document the condition of each connection.
- Check each label for clarity and completeness.
- Replace any missing or damaged labels immediately.
- Ensure labels are compliant with safety standards.
- Document any labels that need replacement.
- Look for oil stains or puddles around the base.
- Inspect seals and gaskets for cracks or splits.
- Tighten or replace any compromised seals.
- Record findings and actions taken.
- Turn on fans and listen for abnormal noises.
- Check airflow direction and velocity.
- Inspect electrical connections to the fans.
- Document fan performance and any issues found.
- Ensure all maintenance activities are recorded accurately.
- Note any changes in performance metrics.
- Verify that logs are signed off by relevant personnel.
- Store logs in a secure and accessible location.
- Check grounding rods and connections for tightness.
- Look for signs of corrosion or damage.
- Clean any corrosion with appropriate methods.
- Document the condition of grounding connections.
- Use an insulation resistance tester for measurements.
- Compare results to manufacturer specifications.
- Record values and any discrepancies noted.
- Schedule follow-up testing if necessary.
- Use a calibrated thermometer and hygrometer.
- Record readings in maintenance logs.
- Compare with operational limits and guidelines.
- Take action if conditions exceed acceptable ranges.
- Inspect for nests or droppings in the area.
- Remove any debris that may attract pests.
- Implement pest control measures as necessary.
- Document findings and actions taken.
- Test the shut-off mechanism to ensure it operates smoothly.
- Check for clear access to the shut-off switch.
- Verify that all personnel are trained on its use.
- Document the functionality check.
- Inspect tools for wear and functionality.
- Ensure all are returned to designated storage areas.
- Clean tools after use to maintain condition.
- Document any tools needing repair or replacement.
- Cross-check completed tasks against the schedule.
- Update any overdue maintenance tasks.
- Discuss scheduling with maintenance personnel.
- Document changes made to the maintenance schedule.
Use in Manifestly