Can you outline the Drying Transformer Steps involved when using an Air Drying System?

Certainly! The drying process of a transformer using an Air Drying System involves several systematic steps to ensure effective moisture removal and restore oil quality.

Preparation: Begin by safely disconnecting the transformer from the power supply and ensuring it is cool. Inspect for any existing leaks or damage that may affect the drying process.

Oil Sampling: Collect oil samples to assess initial moisture content and other quality parameters, establishing a baseline for the drying process.

Heating the Oil: Use heating elements within the Air Drying System to raise the temperature of the transformer oil, reducing its viscosity and facilitating moisture evaporation.

Air Circulation: Activate the air circulation units to circulate dry, heated air through the transformer oil. This airflow absorbs and carries away moisture from the oil.

Humidity Monitoring: Continuously monitor the humidity levels of the circulating air using sensors, adjusting airflow and temperature as needed to maintain optimal drying conditions.

Filtration: Pass the circulating air through filters to remove particulates and prevent recontamination of the oil, ensuring only clean air interacts with the oil.

Moisture Removal: As the dry air absorbs moisture, it is expelled from the system, effectively reducing the overall moisture content in the transformer oil.

Quality Testing: Periodically test the oil to measure moisture content and dielectric strength, ensuring the drying process is achieving desired results.

Completion: Once the oil reaches the specified moisture levels, gradually reduce airflow and cooling the oil to return it to normal operating temperatures.

Documentation: Record all measurements and adjustments made during the drying process for future reference and maintenance planning.

Reconnection: Safely reconnect the transformer to the power supply, ensuring all systems are functioning correctly and the transformer is ready for operation.

By following these steps, the Air Drying System effectively removes moisture from transformer oil, enhancing insulation properties and extending the transformer’s operational lifespan.