1. Improve mechanical strength
A transformer is a loose body composed of various accessories, such as a tripod, coil, various pads, pads, end pads, and the number of turns of the coil itself. If the transformers are not impregnated, they will operate. Under the action of electromagnetic stress, electromagnetic vibration and mechanical stress caused by Thermal expansion, each turn of wire is very easy to wear, loosen, and damage the insulation of all parts, especially when the current is large, the damage speed is faster. However, after being impregnated with insulation paint, all insulation components, appearance of insulation materials, and pores of the transformer are immersed in the insulation paint and bonded together, improving the mechanical strength of the winding and increasing its resistance to various stresses.
2. Improve the thermal conductivity, heat resistance, and electrical strength of the winding
Before impregnating the transformer coil, various insulation materials in the insulation structure have micropores, and there is also an air gap between the group and the insulation components. These micropores and air gaps are filled with air, which is not conducive to heat conduction. Body, affecting the heat dissipation of the transformer. If the transformer is impregnated and the insulation paint is filled into the micropores and capillaries of each insulation material, as well as all air gaps, the thermal conductivity will be greatly improved, because the thermal conductivity of the insulation paint is 5 times that of air The temperature rise of ordinary immersion motors is 10K lower than that of non immersion motors, and the temperature rise of vacuum immersion motors is 5K lower than that of ordinary immersion motors.
3. Improve insulation strength
Transformers typically operate in environments with harmful gases such as moisture, alkali, and salt, leading to accelerated degradation of insulation performance and even insulation breakdown. After the transformer winding is immersed, it can slow down the corrosion rate of the external environment.