When does the normally guaranteed dry type transformer need to be dry-handled? Do you want to pay attention to the problem when the drying transformer is dry? Below, let the baoding dry transformer production factory explain for everyone.
The dry - type transformer is desiccant to the water vapor in the transformer to prevent the transformer from dampness. Generally in baoding dry type transformer maintenance, replacement of windings or insulation, body exposed in air time is too long, baoding dry type transformer winding be affected with damp be affected with damp such cases need to be dry processing. The new machine should also be dry before installation.
The problems to be noticed when the drying transformer is dry are as follows:
1. If there is no vacuum in the drying room, the air hole should be opened on the lid of the box or the throttle hole should be used to release the moisture.
2. When heating with oil, the insulation layer should be set up outside the oil tank, and the insulation material should be used to make fire prevention measures.
3. The drying temperature should be controlled to improve the vacuum degree of the equipment, which is beneficial to improve the drying quality of the winding.
4. Pay attention to the time of vacuum when drying. Usually start in low temperature stage of drying, don't pumping air into vacuum state, until the temperature rise to 70 ~ 80 ℃ and vacuum. This is conducive to the increase of core temperature and the elimination of moisture.
Drying treatment is very important for transformer equipment, not only can effectively prevent transformer dampness, but also improve the service life of transformer and ensure safe operation.
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