What should be done if the temperature rise of a dry-type transformer exceeds the standard?

We all know that dry-type transformers are crucial components in electrical systems, capable of performing voltage conversion and not requiring the use of liquid insulation materials. However, these transformers may encounter serious operational problems due to overheating of the windings. Therefore, our technicians have compiled some effective measures in an attempt to help everyone solve this issue.                

One of the main reasons for overheating of dry-type transformers is poor heat dissipation. Our technicians usually adopt a forced air cooling system to maintain the optimal operating temperature of the transformers. This is because the system enables the fans to circulate air around the transformers, thereby discharging the heat generated during operation. Therefore, we hope that everyone will remember that if the temperature exceeds the standard value, the first step is to assess the performance of the forced air cooling system, and the second step is to ensure that the fans are operating normally and there are no obstacles hindering the air flow. Of course, having employees perform regular maintenance and cleaning of the cooling components can also significantly improve their efficiency.

At the same time, it is particularly important for everyone to note that if the cooling system is operating normally but the temperature remains high, it might be necessary to reduce the load on the transformer. This is because overloading leads to excessive heat generation, so evaluating the load condition and redistributing the power load can alleviate the problem. Of course, we recommend that customers adopt a temperature monitoring system that can provide real-time data on the operating status of the transformer.

However, we hope that the customers can understand that in extreme cases, even if these measures are taken, if the temperature continues to exceed the acceptable range, it might be necessary to shut down the transformer to prevent damage. Because in such situations, continuing to operate would lead to insulation failure and a shorter lifespan of the equipment.