Title :
Study of partial discharge induced electromagnetic wave propagation property in power transformer model
Author :
Morita, Nobutomo ; Kozako, Masahiro ; Hikita, Masayuki ; Yoshida, Sigeru ; Uchiyama, Masaru ; Yamada, Shigeru
Author_Institution :
Dept. of Electr. Eng. & Electron., Kyushu Inst. of Technol., Kitakyushu, Japan
Abstract :
This paper investigates the electromagnetic wave propagation properties in a transformer tank model with coil by experiment and finite difference time domain (FDTD) analysis. Especially, this paper deals with the effects of the windings and PD source on the EM wave propagation and frequency characteristics. As a result, it is found that the coil acts as a loop antenna. It is also indicated that the behavior as the loop antenna causes the frequency giving the best detection sensitivity of PD radiated electromagnetic waves to shift to the lower frequency.
Keywords :
electromagnetic wave propagation; loop antennas; partial discharges; power transformers; transformer windings; EM wave propagation; FDTD analysis; PD radiated electromagnetic wave detection sensitivity; PD source; coil; finite difference time domain analysis; frequency characteristics; loop antenna; partial discharge induced electromagnetic wave propagation property; power transformer tank model; Atmospheric modeling; Coils; Partial discharges; Power transformer insulation; Sensitivity; Windings; EM wave propagation; Partial discharge; Power transformer; UHF method;
Conference_Titel :
Condition Monitoring and Diagnosis (CMD), 2012 International Conference on
Conference_Location :
Bali
Print_ISBN :
978-1-4673-1019-2
DOI :
10.1109/CMD.2012.6416457
