How to deal with dry power transformer after wet?
In rainy weather or hot weather, transformers are more likely to get wet, and damped transformers and computers are prone to short-circuit and other problems. We must focus on dealing with damped transformers and have methods to deal with them. In this way, transformers can Can reduce failure and reduce damage. How should we deal with the actual transformer wet treatment process? The following are two common treatment methods for your reference:
The heating method of the dry power transformer is mainly to place the entire body of the power transformer in the oil tank, and the external winding coil can pass the current of the power frequency, and then use the loss of the eddy current on the wall of the oil tank to dry and heat the power transformer. At this time, the temperature on the box wall cannot exceed 115°C-120°C, and the temperature of the body cannot exceed 90°C-95°C, but in order to facilitate the winding of the coil, the number of turns of the coil should be as much as possible. Less, or the current is smaller, etc. Under normal circumstances, the current should be 150A, and the wire is 35-50mm2, you can pad multiple asbestos strips on the tank wall, and then wrap the wire around the asbestos strips. The method of hot air drying is to place the body of the power transformer outdoors, or to dry it with hot air, and the temperature of the imported hot air should gradually rise, but the temperature should not exceed 95 ℃, and it should be A filter is installed at the air inlet of the hot air, mainly to prevent dust and sparks from entering the power transformer, and the hot air cannot be blown directly against the body of the power transformer. Blow in different directions, so that the moisture can go out from the vent hole of the box cover.
The above are the common solutions for dry power transformer that are affected by moisture for your reference. If there are other faults in the transformer, please consult our manufacturers or get in touch with our technicians for solutions.
