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Transformer Oil Filteration

Importance Of Transformer Oil Filtration

It is a well-known fact that as the transformer ages the oil inside degrades over time. The oil is exposed to unwanted elements like acids, moisture, metal, dust and sometimes dissolved gases too which makes it important for us to consider filtration of transformer oil in order to maintain a good quality and clean oil for the transformer to give efficient and reliable performance.

Roles Of Transformer Oil

Before we get into the detailed process of oil filtration it is important for us to understand the job of the transformer oil. So basically it has two main tasks:

·As Coolant: When the transformer voltage fluctuates because of the change in load conditions it produces heat inside the body, the oil inside helps to cool down the condition and facilitates to dissipation of heat through the radiators.

·As Insulator: The oil inside also acts as a insulation medium and provides insulation between the coils which helps to avoid arcing, short circuit, corona discharges etc

When Is Oil Filtration Required

As the part of your preventive maintenance program, transformer oil testing should be conducted periodically. Below is a list of test which we do in order to determine the condition of the oil:

  • Dielectric Strength or Breakdown Voltage (BDV)
  • Colour and appearance

If any of the above test are outside the safe and acceptable value, then transformer oil filtration should be done immediately.

Our Mobile Filtration Facilities

We have heavily invested in state of Art Transformer Oil Mobile Machine.

Our Transformer Oil Testing Labs

Ishaan Engineering Solution have recently invested in the most sophisticated Transformer Oil Test Lab and is proud to be the first and only lab with 7 test capabilities in the whole of the United Republic of Tanzania. The following are the test that we carry out at our Lab.

The following are the test that we carry out at our Lab:

  • DGA
  • BDV
  • Furans
  • Water Content
  • Acidity
  • Calculated DP Value

Further than Oil test we also conduct on site various Transformer checks which include:

  • Winding Ratio Test
  • Winding Resistance Test
  • Winding IR value Test