There are many types of transformers, one of which is pad transformer. Since the product does not have oil temperature protection, there is only one thermometer to display the oil temperature. When the oil temperature is too high, the insertion fuse is protected, and there is a pressure release valve to release excessive pressure in the fuel tank. Therefore, the oil should be checked frequently.
The oil filled in the fuel tank is usually FR3 insulating oil, and its burning point can reach 312 ° C. It has excellent electrical characteristics, high insulation strength, good lubrication, strong arc extinguishing ability, non -toxic, can be bio -decomposed, which greatly reduces the right right. Harm of the environment and health.
FR3 insulation oil is different from traditional mineral oil. Insulation oils will form a precipitation, and most American boxes produced in China mostly fill 25#ordinary mineral oil. In addition, the upper part of the fuel tank is usually full of inert gases to prevent water in the air from being exchanged into the oil. Domestic pad transformer may not have this job. Over time, the performance of the oil will be reduced, and its sealing performance is less than 7 PSIG requirements, so it needs to be replaced regularly.
Friendship reminder: Because the fuel tank of pad transformer is exposed to the outside, it should be checked frequently to prevent external force collision damage and oil leakage. Reduce unsafe factors and strengthen safety.
In order to avoid excessive temperature during use, check the insulating oil regularly, pay attention to whether the oil storage equipment is damaged to avoid the risk of oil leakage.
