Partial discharge inception voltage of twisted pair samples under long-time repetitive bipolar impulses

Author

Kimura, Ken ; Ushirone, Sojiro ; Fukushima, Tadaaki ; Ohtsuka, Shinya ; Hikita, Masayuki

Author_Institution

Kyushu Inst. of Technol., Kitakyushu, Japan

fYear

2004

fDate

19-22 Sept. 2004

Firstpage

192

Lastpage

195

Abstract

The reliability of inverter-fed motors depends on partial discharge (PD) behavior of stator windings. In this paper we discuss partial discharge inception voltage (PDFV) characteristics of twisted-pair samples under long-time repetitive impulses using optical and electrical PD detection methods. For PDIV measurement, we adopted step-by-step and continuous rise of peak voltage of impulse. The repetitive frequency is 500 Hz. The result suggests that PD can occur even after a long period of time of repetitive impulses. We discuss practical importance of test procedure of PDIV under the special voltage waveforms.

Keywords

impulse testing; insulation testing; invertors; machine insulation; machine testing; partial discharge measurement; stators; twisted pair cables; voltage measurement; 500 Hz; PDIV measurement; electrical PD detection method; inverter-fed motor reliability; long-time repetitive impulse; optical PD detection method; partial discharge behavior; partial discharge inception voltage characteristics; repetitive frequency; stator windings; twisted-pair sample; voltage waveform; Character generation; IEC standards; Impulse testing; Insulation; Optical noise; Partial discharges; Pulse generation; Shape; Stator windings; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 2004. Conference Record of the 2004 IEEE International Symposium on

ISSN

1089-084X

Print_ISBN

0-7803-8447-4

Type

conf

DOI

10.1109/ELINSL.2004.1380514

Filename

1380514