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Partial Discharge Detection Using a Spherical Electromagnetic Sensor.

Pietro Romano1, Antonino Imburgia2, Guido Ala3

  • 1L.E.PR.E. H.V. Laboratory, Department of Engineering, University of Palermo, 90128 Palermo, Italy. pietro.romano@unipa.it.

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|March 2, 2019
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Summary

This study introduces a novel, non-intrusive antenna sensor for measuring partial discharge (PD) in electrical equipment. The instrument enables rapid and accurate diagnosis of insulation system health, preventing potential failures.

Keywords:
PD measurementsantenna sensorpartial discharge (PD)wireless sensor

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Area of Science:

  • Electrical Engineering
  • Materials Science

Background:

  • Partial discharge (PD) indicates potential insulation failure in electrical apparatus.
  • Early detection of PD is crucial for preventing equipment and network service termination.

Purpose of the Study:

  • To present and analyze an innovative, non-intrusive partial discharge measurement instrument.
  • To detail the frequency response and recognition features of the antenna sensor.
  • To demonstrate automatic synchronization with supply voltage for PD source identification.

Main Methods:

  • Development of a novel antenna sensor for non-intrusive PD measurement.
  • Analysis of the antenna sensor's frequency response.
  • Implementation of features for PD source recognition and voltage synchronization.

Main Results:

  • The developed instrument effectively measures partial discharge.
  • The antenna sensor exhibits favorable frequency response characteristics.
  • The system successfully recognizes different PD sources and synchronizes with the supply voltage.

Conclusions:

  • The innovative PD measurement instrument provides a fast and correct diagnosis of insulation system health.
  • Non-intrusive PD monitoring enhances electrical apparatus reliability.
  • This technology aids in preventing service interruptions due to insulation failure.