6533b835fe1ef96bd129ff29

RESEARCH PRODUCT

Performances of a PCB-based Loop Antenna Inductive Sensor for Partial Discharges Detection

Sinda KazizAntonino ImburgiaDenis FlandreGiuseppe RizzoPietro RomanoFabio ViolaGuido AlaFares Tounsi

subject

Settore ING-IND/31 - ElettrotecnicaHFCT sensorInductive spiral loop; PCB-based sensor; Partial discharge detection; HFCT sensorpartial discharge detectionPCB-based sensorInductive spiral loop

description

This paper presents the test results of an electrically small loop antenna sensor towards detecting the radiated magnetic field due to partial discharge (PD) activities. The loop antenna prototype was printed on an FR-4 substrate with a thickness of 1.6 mm, featuring a compact size of 20 mm times20 mm times1.7 mm. The proposed sensor, initially simulated with Ansys HFSS software, has a resonant frequency of about 100 MHz. Its detection capability for three types of partial discharges (i.e., corona, surface and internal PDs) has been evaluated. Laboratory experiments showed that the evaluated loop spiral antenna is appropriate for the detection of the three types of PDs. Indeed, the results show a peak-to-peak voltage equal to 22.87 mV, 74.8 mV, and 79.72 mV, respectively, for corona, surface, and internal PDs, with a frequency spectrum showing a maximum at 42.19 MHz, 16.41 MHz, and 35.1 MHz, respectively. Lastly, the performance of the proposed small loop sensor was compared to that of the commercial HFT sensor. The results show that the two sensors present comparative sensitivity for the three types of PD.

yearjournalcountryeditionlanguage
2022-07-03
10.1109/icd53806.2022.9863503https://hdl.handle.net/2078.1/267421