Electromagnetic waves from partial discharges in windings and their detection by patch antenna

Author

Shibuya, Yoshikazu ; Matsumoto, Satoshi ; Konno, Tatsuya ; Umezu, Kiyoshi

Author_Institution

Shibaura Inst. of Technol., Tokyo, Japan

Volume

18

Issue

6

fYear

2011

fDate

12/1/2011 12:00:00 AM

Firstpage

2013

Lastpage

2023

Abstract

The electromagnetic (EM) radiation accompanying partial discharges (PDs) in enameled-wire winding is analyzed assuming the Gaussian currents in the basic PD model. A simplified procedure is proposed to evaluate the response of patch antenna or microstrip antenna to the EM wave based on the transient circuit calculus. Analyses on the twisted pair specimen show that EM radiation from the wire currents contribute to patch antenna output much more than that from the PD itself. The analytical results are verified by an experiment on the twisted pair. It is confirmed that the patch-antenna sensor is potentially capable of detecting PDs in actual motor winding.

Keywords

Gaussian processes; electromagnetic wave transmission; microstrip antennas; windings; EM radiation; EM wave; Gaussian current; PD model; electromagnetic radiation; electromagnetic wave; enameled-wire winding; microstrip antenna; partial discharge; patch antenna; transient circuit calculus; wire current; Equations; Lead; Magnetic fields; Partial discharges; Patch antennas; Windings; Wires; Partial discharge; UHF measurement; electromagnetic measurement; insulation testing; microstrip antenna; patch antenna;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/TDEI.2011.6118639

Filename

6118639