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DVTP Double Stages Vacuum Transformer Oil Filtration Machine

July 9,2017.

DVTP Double Stages High Vacuum Transformer Oil Filtration Machine is mainly used for oil-filled electrical equipment, the installation stage of the installation of new transformer oil or equipment after the replacement of new transformer oil replacement process, the main removal of oil in the water, impurities and hydrogen, acetylene, methane , Ethane and other gases to improve the transformer oil flash point, pressure and insulation strength, and within the specified time to meet the standard transformer oil technical indicators, shorten the processing time and improve processing efficiency.

Efficiency of Transformer Oil Filtration Machine depends mainly on the vacuum and oil temperature. This is necessary for deep dehydration, degassing treatment of ultra-high pressure equipment with transformer oil is essential, appropriate to improve the oil temperature and reduce the oil level, can accelerate the mass transfer process, improve the efficiency of purification. But the oil temperature should not be too high, generally controlled below 60 , the maximum does not exceed 60 , to prevent oxidation of oil or oil in the antioxidant caused by the loss of volatile.

500kV voltage level of ultra-high voltage transformers uses standard ultra-high voltage transformer oil. With the development of ultra-high voltage power transmission technology, transformer oil must meet the ultra-high voltage conditions, this need to be equipped with better performance Transformer Oil Filtration Machine, to ensure that ultra-high pressure equipment transformer oil index to meet the requirements.

Vacuum Transformer Oil Purifier adopts precision filtration and efficient dehydration. The degree of removal of particulate impurities in the oil after purification is represented by the NAS level. The dehydration and degassing are mainly the use of the saturated vapor pressure of the oil is much lower than the saturated vapor pressure of water and other gases. Under certain temperature and vacuum, So that the oil contained in the water, gas vaporization, through the vacuum pump discharge. To maintain the evaporation process, must also have the following two conditions: continuously discharged from the water generated by evaporation of water vapor, which is to make the system to maintain a certain degree of vacuum. must be a certain implementation of the transformer oil

At present, Vacuum Transformer Oil Purifier has single and two vacuum-based, although there are three vacuum products, but the work of vacuum are designed according to 133Pa positioning, and thus get the equipment configuration of the vacuum unreasonable and can’t adapt to high pressure equipment transformer oil high index operation requirements. Not to mention the vacuum target value of 133Pa test point is located in the oil separator's own vacuum separation chamber, when the vacuum test point to the volume of several tens of cubic meters or even larger large main transformer body, the vacuum on the fundamental can’t meet the technical requirements.

According to the current technological development and practical application of the international level to ultra-high voltage power grid of large-scale power equipment for the service object, the vacuum transformer oil purifier should be the following requirements: to avoid the oil pump or oil solenoid valve frequent start and stop, resulting in frequent off Flow and overshoot, oil pump frequent lack of oil, friction intensified, local overheating and produce acetylene, in addition to too fast oil flow will also produce a flow phenomenon. Therefore, oil recycling of the high-quality transformer oil filtration machine is no longer fully open the pump or valve, should be used to automatically track the frequency control technology. has a vacuum filter oil and oiling function; has a good vacuum lifting capacity to meet the power transformer body large volume, high vacuum requirements, are generally three vacuum; should have recycling function to facilitate the adjustment of oil flow rate; with automatic operation function, to adapt to long-term continuous operation requirements.

DVTP Vacuum Transformer Oil Filtration Machine uses imported pumps, motors, heaters, filters, vacuum systems and electrical control systems and other components. Temperature adjustment and control of the sensor ensure that the temperature of the transformer oil is not more than 60 .

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