Detection and continuous monitoring of moisture content in transformer oil using fractal-based capacitive sensor
2024

Monitoring Moisture in Transformer Oil with a New Sensor

publication Evidence: high

Author Information

Author(s): Naveed Muhammad Fahad, Amaar Akasha, Khan Saad Saleem, Omar Muhammad, Larkin Stephen

Primary Institution: Frankfurt University of Applied Sciences, Germany

Hypothesis

Can a new fractal-based capacitive sensor accurately detect and monitor moisture content in transformer oil?

Conclusion

The proposed sensor can detect moisture content in transformer oil with a minimum detection limit of 5PPM and achieves a maximum sensitivity of 20.1179 fF per 5PPM.

Supporting Evidence

  • The sensor design increases the contact area by approximately 17.3%.
  • The sensitivity of the sensor is significantly improved with higher fractal stages.
  • A minimum detection limit of 5PPM is achieved with the sensor.
  • The sensor can switch between different modes to enhance sensitivity or contact area.

Takeaway

Scientists created a special sensor that can tell how much water is in transformer oil, which helps keep the power system running smoothly.

Methodology

The sensor design increases the contact area between capacitor plates and the dielectric medium, allowing for accurate moisture detection and continuous monitoring.

Limitations

The study focuses only on moisture detection and does not address other contaminants in transformer oil.

Digital Object Identifier (DOI)

10.1016/j.heliyon.2024.e40995

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