7Insulation Oil Filtration Machine for 30 MVA Power Transformer,
High Voltage Transformer Oil Dehydration

I. Application of Transformer Oil Purifier
The double-stage vacuum oil filter is more suitable for 110KV power system and above transformer oil filtration purification treatment, of course, it is also suitable for 10KV or 35KV power system insulation oil filtration.The insulation strength value of the double-stage vacuum oil filter is higher, generally ranging from 70KV to 85KV depending on the oil condition.

The doubleo-stage vacuum transformer oil purifier with double-stage vacuum system adds a Roots booster pump to achieve a higher ultimate vacuum, not only improve the vacuum pumping speed but also the faster dehydration rate.
II. Benefits of Transformer Oil Purifier
1. Removes Dissolved Moisture Transformer Oil
2. Reduces combustible gases and oxygen
3. Improves oil dielectric values
4. Improves transformer power factor
5. Extends oil service life
6. Extends transformer service life and reliability
7. With electrical control inter-lock design. Vacuum pump system, oil transfer system and heating system are interlocked in control.
8. Precise filtration system to remove impurities at a maximum extent.
9. Multi Safety operation devices. Phase-sequence, phase lost, emergency stop, etc.
III. Options of Transformer Oil Purifier
1. Weather-proof enclosure for outdoor application.
2. Trailer-mounted to increase mobility.
3. Transformer evacuation as optional function.
4. PLC control with Fully Touch Screen make the machine a fully-automatic plant.
5. Customized design is also acceptable.
IV.Oil Data After Purification

V. Working Flow of Transformer Oil Purifier
1. The insulating oil is conveyed into the plant by means of pressure difference. Oil will firstly flow through a coarse filter, which can filter out large particles and mechanical impurities from insulating oil.
2. Oil is heated uniformly by electric heater with less specific heat transfer of 1.7w/cm², thus the deterioration of the oil caused by overheating is avoided during this process.
3. The special vacuum tank create a large oil surface and a resulting thin film, where the oil flows track and static water evaporation area were expanded to the largest extent, so that the effect of dehydration and degassing is maximized effectively. The particular double-stage vacuum pump system and pressure-boost technical make vacuum degree in vacuum tank higher than that in common oil purifier plant. Specially-designed oil level controller in the vacuum tank assures a continuous oil flow-through in the plant, thus resulting in an optimised dehydration and degassing of the oil. With the double-stage vacuum oil purifier, the installation period and maintenance period can both be shortened effectively.
4. After degassing and dehydration under vacuum, the oil is conveyed by through the fine filter and out of the plant.
5. Oil Circulation is recommended to achieve better effect of purification and filtration.
VI.Machine Specification

VII. Available Style of Transformer Oil Purifier
1. Fixing type,mobile type with four wheels and mobile type with trailer.
2. Normal appearance type,shelf-covering type and explosion-proof type.
3. Avaliable in different color.


About us:
►We are the leading manufacture near 25 years experience and supply best quality and highest cost performance oil purification machines. Our oil purifier equipment are built by high quality raw materials with newest advanced technology by many skilled technicians and professional workers. We are honest to every customer and responsible for every machine we sold, we offer great after sales service, anytime when customer need us, no matter before or after purchase, we are available online or calling, to make a fast and instant response to customer.
►we practiced in this industry during all these years, and have rich on-site experiences too. Any on-site cases, please contact us for a solution.
►For detailed product specifications, please leave us your email or mobile no. To send you the catalog. Thank you.

Sino-NSH Oil Purifier Manufacture Co., Ltd. is a high-tech company which is engaged in researching, developing and manufacturing purification equipments. Its parent company, Sino-NSH High-Tech Company, was established in 1992.

NSH regards technical innovation and all-round service as its philosophy. Taking advantage of human resources capital and absorbing domestic and foreign advanced purification technology, NSH is committed in making purification equipments. NSH has been authorized the ISO9001 Quality Management System Certificate and European CE Certificate, now NSH becomes the main manufacture base of purification machines in China. 　

NSH oil purification equipment series are extensively used in the fields of electric power, petroleum, natural gas, mechanical manufacture, steel, metallurgy, railway and aviation, etc. The main products covering 100 kinds of products can meet different needs of customers. For special demands of customers, we offer particular solutions.

Nowadays, the company’s sales network covers all the provinces in China and exports to more than twenty countries around the world.

NSH products earn its fame on high quality, advanced technology and excellent service in both domestic and foreign markets.

NSH products are not only able to lower customers' cost and secure risk effectively, but also solve the problem of the waste-oil-contaminate environment.

Join hands with NSH, and get accomplishments for you and us.