How To Do Oil Filtration Of Transformer

After the transformer runs for a period of time, if the transformer oil electrical index test is not qualified because of short circuit and other reasons, it is necessary to carry out oil filter treatment to improve its purity.Its main unqualified reason is the water content and particulate matters contained exceed the standards. Water, gas and impurities must be removed from transformer oil to ensure its reliable insulating and cooling function in operating transformers.

Operation precautions for vacuum transformer oil filtration plant:

1. When used on site, the oil filtration plant should be as close as possible to the transformer or oil tank, and the oil suction pipeline should not be too long to minimize the pipeline resistance.

2. The connecting pipes (including the oil tank) must be thoroughly cleaned beforehand, and have good airtightness.

3. Strictly follow the operating procedures. When starting the oil filtration plant, before recycling the transformer oil, must ensure the vacuum pump, oil pump and heater are running normally and the internal circulation is good.

4. The purified oil contains a lot of mechanical impurities and free water. It is necessary to remove the bottom water and impurities in advance, and then use other filtering equipment (such as pressure oil filter, portable oil filter cart, centrifugal oil filter) to fully filter out to meet the crude oil standard required by the vacuum oil filter before it can be carried out by the vacuum oil purifier. In this way, the service life of vacuum oil purifier can be extended.

5. During operation, the working conditions of the oil filtration plant should be strictly monitored (such as vacuum, flow, temperature, etc.), and the quality of the oil before and after treatment (breakdown voltage, etc.) should be checked regularly. To monitor the purification effect of the oil filtration plant.

6. In the winter season, the pipelines, vacuum tanks and other components should be insulated. When filtering oil in the substation, they must also comply with the relevant regulations in the electrical safety work regulations issued by the power industry.

General attention to equipment precautions:

1. The equipment should be checked every 240 hours of operation:

1) whether the electrical control system is safe and reliable;

2) whether the thermostat controller is sensitive, reliable and accurate;

3) whether the shaft seal of each pump is damaged or leaking;

4) each Whether there is air leakage or oil leakage in the piping system and seals;

5) Whether the liquid level control is reliable;

6) Whether the working pressure is normal, and if there is any abnormality, troubleshoot immediately;

2. Pay attention to adding a vacuum pump (Roots pump) at any time Lubricant):

1) The oil level should be kept on the oil mark line;

2) The pump oil should be replaced according to the vacuum pump company's oil standard, generally #100 vacuum pump oil;

3) The pump oil should be used for more than 240 hours, it should be completely replaced;

4) The pump oil is seriously emulsified and should be replaced;

3. If the machine is shut down for more than one month, the machine should be placed in a dry place.

More information about Transformer Oil Filtration Machine, please contact us freely. PureTech is a professional manufacturer of industrial oil filtration machines based in China, with our own R&D team, we accept customization in designing your machines.

Generally we supply below products of transformer oil filtration plants: