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Date：05-11-2022
Oil-immersed transformers occupy a large market share in my country, but the oil leakage problem of transformers is a big problem and hidden danger in the power industry, especially the oil leakage of transformer high-voltage bushings is a relatively common problem in the power industry, and For transformer equipment, oil leakage is a more dangerous thing.
Transformer high-voltage bushing oil leakage treatment process:
1. Clean up the oil stains on the leaking part, and polish around the leaking part to expose the primary metal color;
2. Clean up, after surface treatment, it is required to be clean, dry, firm and rough;
3. Reconcile the carbon nano-polymer material and block the leakage part until there is no leakage;
4. Block other parts. After the material is cured, the repair is completed.
After the oil seeps out of the oil-immersed transformer, serious dirt will appear around the seepage point. If this point is relatively close to the live part, especially when oil seeps into the casing of the oil-immersed transformer inlet and outlet, the casing will be damaged. Accumulation of a layer of dirt can easily cause a “pollution flashover” accident when exposed to moisture, that is, discharge along the outer surface of the oil-immersed transformer bushing. Replacing the oil-immersed transformer bushing is more complicated, even if there are bushing spare parts, professionals also need Affect the power supply for a day.
Oil leakage of oil-immersed transformers occurs from time to time. Serious oil leakage not only reduces the service life of the transformer, but also affects the safe and stable operation of the system. It also plagues the availability of electrical equipment for a long time. In recent years, we have summed up the main reasons for transformer oil leakage through the maintenance of transformers: aging and cracking of transformer rubber pads. Transformer manufacturing process quality problems. Accidental oil discharge: improper installation and consignment methods.
In view of the oil leakage of the high-voltage bushing of the transformer, the general enterprise will maintain the seal by replacing the rubber pad with good quality, and tighten the fastening bolts to make the bushing leak-free. Or use copper-aluminum transition to silver-copper contact to reduce oxidation. However, these methods cannot guarantee the effect, and the current Soleil carbon nanopolymer material can effectively solve the problem of oil leakage. The material technology can realize rapid treatment without stopping online, and make full use of the comprehensive properties of the material such as oil resistance, high adhesion and corrosion resistance.
