Transformer oil dehydration importance & process
-
Upload
transfo-tech-engineering -
Category
Engineering
-
view
294 -
download
9
Transcript of Transformer oil dehydration importance & process
![Page 1: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/1.jpg)
Transformer Oil Purification / Filtration Process /
Procedure
![Page 2: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/2.jpg)
In this article you will understand
transformer oil purification
process, steps and methods
involved in oil purification process.
![Page 3: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/3.jpg)
Transformer oils are important for the
running of transformers winding and are
the dielectric substance that helps in
maintaining their temperature.
Transformer oils are vital for the
proper running and functioning
of the transformers.
![Page 4: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/4.jpg)
Transformers require filtered and dried oil.
During its usage, the insulating oil absorbs moisture and
gets polluted by sopping fibers, dirty particles, aging
products, and soot.
Even unused oil is not clean enough as it may have absorbed
moisture from the air or may have got polluted in the barrel it
was stored in.
The efficiency of the oil as an insulating material is highly
reduced as the moisture level increases. Hence, transformer
oil filtering is an important process which eliminates solid
particles, dissolved gasses, and dissolved water.
The electrical properties of the oil can be enhanced by
filtering, dehydration, and degassing. Oil Filtering keeps the
transformer in good condition and increases its life.
![Page 5: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/5.jpg)
Almost 75 percent of the transformer
failures happen due to contaminated and
deteriorated oil.
It is important to filter the transformer oil.
Regular maintenance (each 6 months) is
of utmost significance as it is a great
financial burden to replace or repair the
transformer.
![Page 6: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/6.jpg)
![Page 7: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/7.jpg)
●Arcing
●Overheating, which reduces electrical
efficiency as well as the life of the
transformer.
●Corona Discharges
●Decrease in insulating strength of the
transformer oil
![Page 8: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/8.jpg)
![Page 9: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/9.jpg)
An alternate method used for dirt
separation from oil is centrifuge.
Routine transformer oil filtration or transformer oil
conditioning is often confused with transformer oil
centrifuging.
Transformer oil centrifuging is all together a different
technology and has a little impact on improving the oil
parameters.
Centrifuges used for separation of dirt from the
transformer oil can be slow speed type centrifuges
that do not require additional electric motor to spin the centrifuge cone at high speed.
![Page 10: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/10.jpg)
●Dielectric Strength
●Voltage Breakdown
●Color
●Visual Inspection
●Moisture Content
●Acidity
●Flash Point
●Interfacial Tension and,
●Particles Contamination
![Page 11: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/11.jpg)
•Improved insulation properties of the oil and hence the other media like paper/cellulose insulation. •Better the insulation of transformer, longer the life of the transformer and lesser the breakdown of the transformer. •Longer the life of the transformer asset, good returns on investment of the asset. •Lesser breakdowns and failure of the transformer results in uninterrupted power supply.
![Page 12: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/12.jpg)
![Page 13: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/13.jpg)
At Transfo Tech. Engineering, we use Oil purification machines with International prescribed Standards (BIS, NEMA, IEEE, IEE, ASTM, ASME, IEC) for good performance of transformer.
![Page 14: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/14.jpg)
Mainly there are three types
of oil treatment processes:
●Filtering
●Purification with Drying Process
●Regeneration or Reclamation
with Degassing
![Page 15: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/15.jpg)
The Filtering Process involves
transformer oil filtering at a temperature
of about 60 degree Celsius. The process
filters fine contaminated particles with
the help of a filtering device.
The Purification with Drying Process
heats the oil to a maximum temperature
of 90 degree Celsius and removes acidic
& polar components from the transformer
oil. A process of degassing under
vacuum follows.
![Page 16: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/16.jpg)
The Regeneration or Reclamation with
Degassing is similar to the Purification with
Drying Process but uses extra oxidant
additives.
This is the most effective method by which
the oil can be regenerated in a cost
effective manner.
However, the safety of the environment
must be considered before undertaking this
process.
![Page 17: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/17.jpg)
The traditional filters like the mechanical ones are the
most commonly used filters. These filters are
successful in removing dirt, debris, soot, and large
contaminants.
![Page 18: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/18.jpg)
At Transfo Tech. Engineering,
we understand the requirements of the
oil filtration and are committed for
resulting a good transformer
performance. Feel free to contact
us, we shall be happy to help you and provide you a quick response.
![Page 19: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/19.jpg)
Transformer oil purification is a
process to remove sludge,
dissolved moisture and dissolved
gases from the oil.
![Page 20: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/20.jpg)
![Page 21: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/21.jpg)
![Page 22: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/22.jpg)
![Page 23: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/23.jpg)
![Page 24: Transformer oil dehydration importance & process](https://reader034.fdocuments.in/reader034/viewer/2022042517/5888f2101a28ab87728b6921/html5/thumbnails/24.jpg)
PEC Registration No: 56810
NTN No: 2691105-1
021-35069031-35055416
+923212234135-03218217382
B-542, SECTOR 35/A, ZAMAN TOWN KORANGI : 4
KARACHI
www.transfotech.com.pk
/transfotech