Title :
Partial discharge characteristics of twisted magnet wire under high frequency AC voltage
Author :
Matsumoto, Shinichi ; Nguyen Nhat Nam ; Nagaba, Daichi ; Ogiya, Takahiro
Author_Institution :
Shibaura Inst. of Technol., Tokyo, Japan
Abstract :
This paper describes the partial discharge characteristics of magnet wire under high frequency AC voltage. At first, high frequency harmonics of the inverter surges are analyzed by Fourier analysis in the pulse modulation width control system of the 5 levels and 11 levels. Analytical result shows that the higher harmonic spectra contain higher AC frequency up to several hundreds kHz. Next, partial discharge inception voltage and partial discharge characteristics of the magnet wires were studied under high frequency AC voltages from 20 kHz to 200 kHz. Lastly, humidity effect for partial discharge under high frequency voltage is also clarified in the paper.
Keywords :
Fourier analysis; insulated wires; partial discharges; Fourier analysis; frequency 20 kHz to 200 kHz; high frequency AC voltage; high frequency harmonics; higher harmonic spectra; inverter surges; partial discharge characteristics; partial discharge inception voltage; pulse modulation width control system; twisted magnet wire; Cable insulation; Partial discharges; high frequency AC voltage; humidity effect; inverter surge; magnet wire; partial discharge inception voltage;
Conference_Titel :
Electrical Insulating Materials (ISEIM), Proceedings of 2014 International Symposium on
Conference_Location :
Niigata
DOI :
10.1109/ISEIM.2014.6870719
