Do oil filled distribution transformers need to change the oil frequently

The low-voltage winding of the oil filled distribution transformers generally adopts a cylindrical structure with copper foil around the shaft, except for the small-capacity copper wire; the high-voltage winding adopts a multi-layer cylindrical structure, so that the ampere-turn distribution of the winding is balanced and the magnetic flux leakage is small. , high mechanical strength, strong short-circuit resistance. Generally speaking, whether the oil-immersed transformer needs to change oil needs to be checked regularly:

1. Check oil temperature of oil filled distribution transformers

Under normal circumstances, due to the operation of the transformer, the oil temperature of the transformer will inevitably rise, but there will be a certain range, which cannot exceed 85 degrees Celsius. When the oil temperature is too high, it is necessary to check whether the transformer is overloaded. If it is to reduce the load current, Indoor ventilation and heat dissipation should be strengthened.

2. Check oil quality of oil filled distribution transformers

The main thing is to see if there are impurities, sediments, etc. in the transformer oil, which will cause the quality of the transformer oil to deteriorate and affect its use effect.

3. Check the oil level of oil filled distribution transformers

The oil level mainly reflects the oil volume of the transformer. The oil volume of the transformer should not be too low. Once the oil volume is too low, the performance of all aspects will inevitably decline, and the overall loss of the transformer will increase, which has a very adverse effect on the transformer.

In order to ensure that the transformer oil plays an important role, it is best to regularly check the three major aspects of oil filled distribution transformers oil level, oil temperature and oil quality. Once problems are found, they should be solved in a targeted manner.