In fact, compared with oil-immersed transformers,Cast Resin Transformer basically do not require maintenance. You only need to pay attention to temperature and regular cleaning. However, in order to extend its service life and eliminate safety hazards caused by aging or overload, it is still recommended that you perform maintenance work.
The maintenance methods of Epoxy Resin Cast Dry-type Transformer are as follows:
1. Clean the surface: Clean the outer surface of the transformer regularly to remove dust and dirt. You can use a vacuum cleaner or a soft brush for cleaning, and avoid using water and chemical cleaners. Regularly cleaning the dust and debris on the surface of the transformer can prevent poor heat dissipation and insulation breakdown caused by dust accumulation.
2. Check the insulation: The insulation status is crucial to the operating stability and safety of the SC(B)Epoxy-resin filled Dry-type electric transformer. Regularly testing the insulation can early detect problems such as insulation aging and damage to avoid accidents.
3. Temperature detection: Temperature is an important indicator of the operating status of the dry type transformer. Excessive temperature will accelerate the aging of the insulation material and reduce the service life of the transformer. Therefore, the temperature of the transformer should be checked regularly, especially the temperature of the winding and core. If the temperature exceeds the rated value, the cooling system may need to be repaired or replaced.
4. Check the ventilation system: Check the ventilation system of the transformer to ensure that the fan and vents are not blocked or damaged. If any problems are found, clean or replace the fan and vents in time. The normal operation of the ventilation system can ensure the heat dissipation effect of the transformer.
5. Check the wiring: Check the wiring of the transformer regularly to ensure that the wiring is no looseness or corrosion. For rusted connectors, clean them and apply anti rust agent; for loose connectors, tighten them.
6. Check the maintenance equipment: Check the maintenance equipment of the transformer, such as lightning arrester, lightning arrester and disconnector, to ensure their normal operation. If any problems are found, they should be repaired or replaced in time.
7. Regular maintenance: Perform regular maintenance, such as replacing insulating oil, checking insulation resistance and current distribution, etc. According to the use of the transformer, make a detailed maintenance plan.
Other precautions
Avoid overload operation: Dry-type transformers should avoid long-term overload operation to prevent overheating and insulation aging.
Check the paint layer regularly: Check whether the paint layer on the transformer shell is peeling or damaged, and repair and repaint it in time to maintain the integrity and protective performance of the appearance.
Set up protective railings: Set up appropriate protective railings near the transformer to prevent people from accidentally touching or debris from entering the transformer.
Please note that the above are common maintenance methods for dry type transformers. Specific maintenance and care measures need to be determined according to the model, specifications and use conditions of the transformer. It is recommended to refer to the transformer’s instruction manual and relevant technical standards to ensure correct maintenance and care operations.
