Partial discharge resistant mechanism of newly developed enameled wire

Author

Okamoto, T. ; Abe, K. ; Itoh, Y. ; Umemura, T.

Author_Institution

Heavy Apparatus Eng. Lab., Toshiba Corp., Japan

Volume

2

fYear

1997

fDate

19-22, Oct 1997

Firstpage

512

Abstract

A new enameled wire with inorganic additives has been developed. The wire is a double layered structure whose outer layer contains inorganic additives. It was shown that the new wire has good partial discharge endurance at power-frequency, leading to a lifetime improvement of about an order of magnitude. It was also found that the higher conductivity of the outer layer improved the partial discharge resistant nature owing to the decrease in partial discharge energies

Keywords

composite insulating materials; insulated wires; insulation testing; life testing; machine insulation; partial discharges; polymer films; double layered structure; enameled wire; inorganic additives; lifetime improvement; outer layer conductivity; partial discharge energies; partial discharge resistant mechanism; polyimide; rotating machines; Additives; Conducting materials; Conductivity; Inorganic materials; Partial discharge measurement; Partial discharges; Pulse width modulation inverters; Testing; Voltage; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1997. IEEE 1997 Annual Report., Conference on

Conference_Location

Minneapolis, MN

Print_ISBN

0-7803-3851-0

Type

conf

DOI

10.1109/CEIDP.1997.641123

Filename

641123