Transformer HT And LT Panel Annual Maintenance

Annual maintenance of transformer HT (high tension) and LT (low tension) panels is essential to ensure their efficient and safe operation. The following are some of the key steps involved in the annual maintenance of transformer HT and LT panels:

1. Visual Inspection: The panels should be visually inspected to identify any visible signs of damage or wear and tear, such as cracks, loose connections, or corroded terminals. Any damaged or worn parts should be replaced.

2. Cleaning: The panels should be cleaned to remove any dust, debris, or other contaminants that may have accumulated. Cleaning can be done using a soft brush or a vacuum cleaner.

3. Lubrication: Any moving parts of the panels, such as hinges or switches, should be lubricated to ensure their smooth operation. Use only the recommended lubricant.

4. Electrical Testing: The electrical components of the panels should be tested to ensure that they are functioning properly. This includes testing the insulation resistance, checking for any abnormal heating, and verifying the voltage and current ratings.

5. Calibration: The panels should be calibrated to ensure that they are accurately measuring and controlling the electrical parameters. This includes checking the accuracy of meters, relays, and other instruments.

6. Tightening Connections: All connections should be checked and tightened to ensure they are secure and have a proper contact.

7. Replacement of Faulty Parts: Any faulty parts should be replaced with new parts of the same or better quality.

8. Checking Protection Systems: Protection systems such as circuit breakers, fuses, and protective relays should be checked to ensure that they are functioning correctly.