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| Transformer underWhether the transformer leak was due to the poor quality of rubber gasket caused? |
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The poor quality of rubber gasket will soon, if cracking, which led to transformer oil spill. <br>Transformer leakage occurred in the seal pad Multi-Service, mainly by the gasket cracks caused by aging. Sealing pad quality is good or bad depends largely on its oil properties, oil resistance poor, the aging speed of the faster, especially in the high temperature, the faster the speed of aging, vulnerable to cracking caused by aging seals, resulting in transformer leakage of oil. Therefore, before purchasing any transformer manufacturers should pay special attention to whether the use of transformer gasket production of large enterprises are quality assurance products. <br> Leakage of transformer oil leakage causes and location of the point, take the following control measures.
Select oil heat sealing pads, transformer repair and treatment of leakage, they should choose high-temperature, oil gasket with good performance. The domestic transformer industry's most commonly used sealing material for acrylonitrile-butadiene rubber, the oil resistance depends on the content of acrylonitrile in acrylonitrile-butadiene rubber, acrylonitrile content the higher the better the oil resistance, hardness, the more easily deformed. In general should be chosen Shore hardness of 70 to 80 between the nitrile rubber. Identification of gasket oil resistance, generally should be done gasket aging test, as well as compatibility with the transformer oil testing, be soaked in hot oil at 120 ℃ in 168 hours, and then measure its weight, volume and hardness of the rate of change, choose the deformation is not in line with the standard gasket. |
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