What are the key points of maintenance and maintenance for dry-type transformers?

Dry-type transformers, as a common type of power transformer, are usually used in dry and clean environments, and their maintenance and upkeep are essential to ensure their normal operation and prolong their service life. The following are the key points of dry-type transformer maintenance and maintenance:
1. Cleaning and inspection

    Regular cleaning: Keep the transformer surface clean and remove dust and dirt regularly, especially in a well-ventilated environment.
    Check the ventilation system: ensure that the ventilation system is free of blockage, the air duct is smooth, and the transformer is well ventilated.

2. Insulation inspection and maintenance

    Insulation performance testing: Conduct insulation testing regularly to ensure that insulation performance meets standard requirements and detect insulation aging problems in a timely manner.
    Insulation material inspection: Check the condition of insulating materials (e.g. cardboard, resin, etc.) to ensure that they are not damp, aged, or damaged.

3. Temperature and humidity control

    Temperature monitoring: Regularly monitor the temperature of the transformer to ensure that it operates within the normal range to avoid overheating and insulation aging.
    Humidity control: Keep the surrounding environment of the transformer dry to avoid humid environments affecting the insulation performance.

4. Oil quality inspection and maintenance

    Oil quality monitoring: Regularly test and monitor the insulating oil to ensure that the oil is of good quality and to detect and treat water, impurities or aging conditions in the oil.
    Oil seal inspection: check the fuel tank and seals to prevent oil leakage and dust from entering.

5. Regular maintenance and overhaul

    Periodic maintenance: Develop a regular maintenance plan in accordance with the manufacturer's recommendations or relevant standards, including internal inspections, fastener inspections, and equipment functional testing.
    Parts Replacement: Periodically replace aging, damaged, or failed components, such as insulation materials, connectors, and insulators.

6. Periodic monitoring and recording

    Record maintenance information: Record transformer maintenance, test data, and maintenance dates, and establish maintenance files.
    Periodic inspections: Conduct regular comprehensive inspections and assessments to ensure that the transformer is performing well and detect potential problems in a timely manner.

7. Safety management

    Safe operating procedures: Establish safe operating procedures to avoid accidents caused by operational errors.
    Fire and explosion-proof measures: Regularly check the surrounding environment of the transformer to ensure that there are no fire and explosion hazards.

The maintenance and maintenance of dry-type transformers is the key to ensuring their long-term stable operation. Regular maintenance and inspection can detect potential problems and deal with them in a timely manner, prolong the service life of the transformer, and improve the reliability and safety of the power system. For maintenance and maintenance, it is best to carry out under the guidance of professionals and follow the manufacturer's recommendations and standards.