Introduction :

In this highly dynamic field of transmission and distribution of electrical power, proper functionality of transformers is critical. Transformer oil ensures that transformers work efficiently by acting as an insulating and cooling medium to the transformers.

Transformer oil however undergoes deterioration with time in the course of its service lifetime due to causes such as oxidation, moisture absorption, and physical contaminants such as dirt and metallic debris. These degradation processes can result in a decline in the insulation strength, and increased electrical conductivity up to the point of failure of transformers.

The Transformer Oil Filtration Machine is capable of removing the water contamination from the oil from more than 5% to less than 0.01% in a short time.

The system is well designed with a stage-wise filtration arrangement which can ensure that the contamination level is under control as mentioned in NAS 5 (ISO 15/12.)

The above-mentioned product is GreenPro certified. GreenPro is a Type – 1 Ecolabel which is accredited by the Global Ecolabelling Network (GEN).

Certified for sustainability, this product proudly carries the prestigious GreenPro Certification (Certificate No. [ GPMSP338012 ], ensuring eco-friendly excellence.


What is a Transformer Oil Filtration System? TOFS


Transformer oil filtering is a process that is aimed at the purification of the used transformer oil with the view of regaining its insulating characteristics to increase the useful life of transformers. Through means of a transformer oil filtration system, the condition of the transformers is checked and maintained before it reaches a critical point that will cause a lot of inconvenience and damaging effects on the company’s power source.


Why do We Need Transformer Oil Filtration?


Transformer oil, although vital for the operation of transformers, faces several challenges over time:

  • Contamination:Over time, transformer oil accumulates contaminants such as moisture, dirt, and dissolved gases. These impurities degrade the oil's dielectric strength, making it more prone to electrical breakdowns.
  • Reduced Cooling Efficiency:Contaminants also hinder the oil's ability to dissipate heat effectively, leading to higher operating temperatures and potential damage to the transformer's windings and insulation.
  • Accelerated Aging:The presence of contaminants, coupled with high operating temperatures, accelerates the aging process of the oil, reducing its overall lifespan and necessitating frequent replacement.


Transformer Oil Filtration Systems (TOFS) offer effective solutions to these problems:


  • Removal of Contaminants:TOFS employ various filtration techniques to remove contaminants from the oil, restoring its dielectric strength and improving its overall quality.
  • Improved Cooling Efficiency:By removing contaminants, TOFS enable the oil to circulate more freely and dissipate heat more efficiently, thereby reducing the risk of overheating and extending the transformer's lifespan.
  • Slower Aging:The removal of contaminants and improved heat dissipation contribute to a slower aging process for the oil, reducing the frequency of oil changes and lowering maintenance costs.
  • Enhanced Safety:By maintaining the oil's quality and preventing electrical breakdowns, TOFS contribute to the safe operation of transformers, minimizing the risk of fire or explosion.

In essence, Transformer Oil Filtration Systems play a crucial role in maintaining the health and longevity of transformers by addressing the problems inherent in transformer oil degradation.


Features of Transformer Oil Filtration:


Multi-Stage Filtration: It is an elaborate procedure consisting of steps like heating, degassing, dewatering, and fine filtration.

Portable Units:Easy to transport single units that can be taken to a specific location where filtration is required thereby causing little or no downtime.

High Efficiency:Effective since they can strip off water, gases, and particles to rejuvenate oil freshness.

User-Friendly Interface: These systems boast a user-friendly interface, featuring intuitive controls and automated operation for ease of use.

Durable Construction:Built to last, they are designed to withstand the harsh conditions often found in industrial settings.

Applications across industries:

  • Power generation plants–coal, gas, hydro, nuclear wind and, solar
  • Power utility plants
  • Power substations
  • Metallurgical fields
  • Railway Sector
  • Oil & gas industries CPP plants
  • Steel Plants
  • Coal & metal mines
  • Chemical sector
  • Automobile manufacturing
  • Industries that require an on-site transformer

Benefits of Transformer Oil Filtration:

  • It removes the moisture and impurities from the oil
  • It keeps the breakdown voltage of the transformer oil within the permissible limit
  • It increases the life of transformer oil as well as transformer
  • It can be operated while the transformer is in charged condition
  • It can protect the transformer from unplanned shutdown and heavy monetary losses

Types of oil which can be cleaned:

  • Transformer oil
  • Insulating oil

Key Consideration :


Oil Quality:Regular testing of oil quality to determine the need for filtration.

Equipment Compatibility:Ensuring the filtration system is compatible with the type of oil and transformer specifications.

Filtration Capacity:Selecting a system with adequate capacity to handle the volume of oil.

Operational Downtime:Minimizing downtime by choosing portable and efficient filtration units.

Maintenance:Regular maintenance of the filtration system to ensure optimal performance.


Conclusion:


In conclusion, transformer oil filtration is a vital maintenance practice that significantly enhances the performance, lifespan, and efficiency of transformers. By removing contaminants and revitalizing the oil, filtration ensures the smooth operation of electrical systems across various industries. Investing in a reliable transformer oil filtration system is a proactive step toward preventing costly maintenance, transformer failures, and environmental damage.


FAQs:


Q: How often should transformer oil be filtered?

A: It depends on the operating condition and the quality of the oil.


Q: Can transformer oil filtration be done on-site?

A: Yes, portable filtration units are available for on-site processing, minimizing downtime and logistical challenges.


Q: What contaminants are removed during the filtration process?

A: The filtration process removes moisture, gases, and particulate matter, restoring the oil's dielectric strength and chemical stability.


Q: Is transformer oil filtration cost-effective?

A: Yes, it extends the lifespan of transformers and reduces maintenance costs, making it a cost-effective maintenance practice.


Q: Are there environmental benefits to transformer oil filtration?

A: Proper filtration reduces the risk of oil spills and environmental contamination, promoting sustainability and compliance with regulation.


Q: What is the transformer oil filtration process?

A: Transformer oil filtration is a process that removes impurities from transformer oil to maintain the oil's quality and performance.

The process involves:

  • Raising the oil temperature: The oil temperature is raised to 60°C.
  • Removing sludge and dirt: Sludge and dirt are removed from the oil.
  • Dehydration and degasification: The oil is dehydrated and degasified.


Q When is transformer oil filtration needed?

A: Transformer oil filtration is necessary when the oil becomes contaminated with impurities such as moisture, dirt, gases, or sludge.
These contaminants can degrade the oil's insulating properties, leading to reduced transformer efficiency, increased risk of faults, and even premature failure.