Title :
Characteristics of electromagnetic wave radiated from corona discharge
Author :
Shixiu, Chen ; Youlin, Sun ; Hengkun, Xie
Author_Institution :
Dept. of Electr. Eng., Wuhan Univ., China
Abstract :
EMI radiated from corona discharge is a serious problem in both EMC and insulation condition monitoring of electric power apparatus. In order to take effective measures to decrease the EMI from corona discharge, the characteristics of electromagnetic (EM) wave radiated from corona discharge should be investigated. The reasons why this problem is complicated are mentioned. A physical model on corona discharge for needle-plate electrode in a closed loop has been presented; polarization pattern and orientation pattern of its EM wave have been analyzed. To verify the correctness of the physical model, a series of experiments have been carried out. Both experiment results and its analysis are reported in this paper
Keywords :
condition monitoring; corona; electrodes; electromagnetic compatibility; electromagnetic interference; electromagnetic wave polarisation; insulation testing; power apparatus; EM wave orientation pattern; EM wave polarization pattern; EMC; EMI; biconic antenna; circular antenna; closed loop; corona discharge; electric power apparatus; electromagnetic wave radiation; insulation condition monitoring; needle-plate electrode; Condition monitoring; Corona; Dielectrics and electrical insulation; Electrodes; Electromagnetic compatibility; Electromagnetic interference; Electromagnetic measurements; Electromagnetic radiation; Electromagnetic scattering; Electromagnetic wave polarization;
Conference_Titel :
Electromagnetic Compatibility, 2001. EMC. 2001 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-6569-0
DOI :
10.1109/ISEMC.2001.950630
