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Transformer Oil Filtration Machine
Vacuum Transformer Oil Filtration & Degassing Machine Manufacturer In China February 28,2019.

Vacuum Transformer Oil Filtration Machine is a kind of equipment that is very effective in oil dehydration, degassing and particle separating. It not only deals with transformer oil, but also can purify other insulating oil. Because the gas content of the insulating oil has special requirements, it also requires the Transformer Oil Filtration Machine to have high performance.

When We choose the vacuum Transformer Oil Degassing & Dehydration Machine to remove the gas content, these basic requirements should be met: all gas can be completely removed from the oil, generally requiring a degassing rate of 97% -99%; the degassing device should be airtight, which has a high degree of vacuum. Generally, the residual pressure of the Vacuum Transformer Oil Degassing & Dehydration Machine is not higher than 0.3mmHg; when degassing, the volume of the degassed test oil and the volume of the gas to be extracted should be accurately measured. It is required that the physical measurement should be accurate to two effective figures; After the medium is removed, the gas should be prevented from being dissolved back to the oil; after degassing, the residual oil and residual gas can be completely drained.

After the Vacuum Transformer Oil Purification System do the fiiltration, the influence of the dissolved gas content on the equipment mainly has such a few points. The gas dissolved in the insulating oil is not significantly affected at low field strength, and under the action of high field strength, the gas is first ionized, and when the temperature and pressure suddenly drop to form bubbles, the bubbles are pulled into the body. It is prone to gas collision and dissociation, which causes breakdown and endangers the safe operation of equipment. The effect of bubbles in the oil on the insulation strength will increase with the voltage level, and the damage will be even worse. To this end, in order to ensure the reliability of transformer insulation, many countries have established specific quantitative standards for the oil in the new injection equipment and the gas content in the operating oil.

The standard for gas content in oils varies with the voltage level of the equipment. For example, for oil equipment of 500kV class, the oil content in the oil is controlled at 0.5% before oiling. The oil content of the oil in operation is 2%~3% according to the index proposed by the International Power Grid Conference.

At the same time, the gas content in the operating oil has a great relationship with the sealing degree of the equipment and has nothing to do with the quality of the oil. That is, the sealing degree of the equipment is good, and the gas content of the oil in operation can be kept within the standard value range. Otherwise, the gas content in the oil will increase with time, even reaching a saturated state, that is, the gas content in the oil can reach about 10%. .

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