Transformer oil leakage plugging, methods for plugging the causes of transformer oil leakage, treatment of transformer flange oil leakage, welding seam oil leakage, transformer non-stop plugging, analysis of oil leakage plugging methods

There are two main reasons for leakage: on the one hand, there are problems left in the design and manufacturing process of transformers; On the other hand, leakage is caused by improper installation and maintenance of transformers. The main leakage areas of transformers often occur in radiator interfaces, flat disc valve caps, bushings, porcelain bottles, welds, sand holes, flanges, and other parts.

Transformer leakage is mainly concentrated in the following areas: the areas that account for more than 50% of the total leakage points are the radiator interface, flat disc valve cap, radiator cover, and connecting flange seal; 16% is due to leakage of sleeves and porcelain bottles; 12% is due to gas relay interface leakage. In addition, there are some defects in the manufacturing process of transformers, such as welds, sand holes, and so on.

1. The reason for the problem of oil leakage control at the welding point is:

Mainly due to poor welding quality, defects such as virtual welding, desoldering, sand holes, etc. exist in the weld seam. When the transformer leaves the factory, it is covered with welding flux and paint, which exposes hidden dangers after operation. In addition, electromagnetic vibration can cause welding cracking and leakage.

Solution to the problem:

For those that have already experienced leakage, first identify the leakage point and do not miss it. Continuous cleaning is required to identify the source of leakage along the oil stain, seal the leakage point with a water oil compatibility supplement, and cure it to achieve long-term treatment of leakage.

2. Causes of oil leakage in cast iron parts:

The main reason for oil leakage is due to sand holes and cracks in cast iron parts.

Solution to the problem:

Drilling anti crack holes is a method to eliminate stress and avoid extension for crack leakage. During treatment, lead wire can be inserted into the leak point or riveted with a hammer according to the condition of the crack. Then clean the leakage point thoroughly, seal it with water oil compatibility supplement and titanium steel adhesive