Oil-immersed Distribution Transformer Oil Tank leaks oil affect the using of power transformer. This Article stated: Why the Oil-immersed Transformer Tank leaks oil? How to prevent transformer tank leaks oil? Why the Oil-immersed Transformer Oil Tank leaks oil? Distribution Transformer Oil tank and parts mostly use 4-12 mm steel plate. Such as the wall, bottom, hand hole, elevator, oil storage tank, some Transformer Tank Manufacturers use double-sided welding (no groove or no groove), so that there is a gap between the inside and outside welds of the tank. Sometimes this gap extends very long, and there is a micro-pore or other defect leakage point on the inside and outside welds. Some of the two holes are far apart, so it is difficult to find them by using the existing leak test methods. When transformer oil is filled, a narrow and long oil passage is formed, which is difficult to find. In theory, transformer oil tank leakage detection...