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When the transformer skeleton is in use, it may get damp, so how do we solve these problems? Let's take a look at the relevant solutions.
1. use the air drying generator to finish the body. for products with complex structure that require a long body finishing process, a closed room can be used, and the dry air treated by the air drying generator (dew point is below–40℃) is introduced inward. the dry air is introduced, and the positive pressure is always kept in the closed room to prevent wet air from entering. there are still insulation materials that need to be assembled in the oil tank or connected internally for a long time, so dry air should also be introduced into the oil tank to keep the positive pressure, so as to protect the body from insulation and dilute the moisture exhaled by the operator ...
2. Shorten the assembly time and keep the height and temperature. This requires operators to have skilled operation techniques and standardized procedures, prepare for prenatal technology and be familiar with drawings; At the same time, the production organizer is required to invest necessary personnel to form a production situation of quickly finishing and putting into boxes without delay or extra work. 3. After vapor-phase drying and vacuum oil immersion treatment, the machine body is reorganized. Vacuum oil immersion makes the transformer oil immerse into the fiber of insulating material, which hinders the entry of moisture, slows down the moisture absorption speed and increases the assembly time. However, the oil immersion time is short and can not completely soak the insulating material. The oil also has water absorption when contacting with the atmosphere, and the production efficiency is low, and the machine body is vulnerable to dust pollution.
4. Re-enter the drying tank for heating, so as to raise the temperature of the body. Some products with complex structure can not finish finishing the casing within the specified time, but can not let the temperature of the body drop. Re-enter the tank for heating to raise the temperature of the body, so that the water vapor partial pressure of the insulation material is always higher than the ambient water vapor partial pressure, so that the insulation material will not absorb moisture. It is a common method adopted by enterprises to arrange during the day and heat and keep the products in the furnace at night.