The basic work of dry-type transformer is to be carried out continuously. Once the dry-type transformer works, its basic temperature will rise. The rising temperature depends on many reasons to rise together. However, the temperature of dry-type transformer does not rise endlessly. It has a lot of ranges. The range of temperature is also continuous and can not exceed many ranges. Once it exceeds a lot, Changde dry-type transformer will have a variety of problems. The following is the temperature range of dry-type transformer in operation:
1. For the coil of dry-type transformer, when class a insulation material is used, the maximum temperature rise should be less than 60K when the limiting working temperature is 105 ℃;
2. When class E insulating material is used, the maximum temperature rise should be less than 75K when the limiting working temperature is 120 ℃;
3. When class B insulating material is used, the maximum temperature rise should be less than 80K when the limiting working temperature is 130 ℃;
4. When class F insulating material is used, the maximum temperature rise should be less than 100k when the limiting working temperature is 155 ℃;
5. When H-class insulating material is used, the maximum temperature rise should be less than 125k when the limiting working temperature is 180 ℃;
6. When class C insulation material is used, the maximum temperature rise should be less than 150k when the limiting working temperature is 220 ℃.
No matter what kind of dry-type transformer equipment, in order to use safety and avoid equipment damage due to high temperature, we must grasp the above temperature principle in the use process. We must pay attention to the best temperature of dry-type transformer, also pay attention to the basic performance and various advantages of dry-type transformer, so that dry-type transformer will have better use and operation!
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