The measurement of space charge in solid insulation of inverter-fed motor

Author

Liu, Jun ; Wu, Guangning ; Zhou, Kai ; Zhou, Lijun

Author_Institution

Coll. of Electr. Eng., Southwest Jiaotong Univ., Chengdu

fYear

2008

fDate

7-11 Sept. 2008

Firstpage

131

Lastpage

134

Abstract

In order to explain the phenomenon of the polymer aged even breakdown under electric stress, the relationship between the space charge and the polymer residual life is studied both in domestic and abroad laboratories. An apparatus that can directly measure the space charge distribution in the polymer insulation materials is developed. Then the space charge distribution in the polymer insulation used in PWM inverter fed motors is tested. Effects of different test condition including pole voltage and frequency are investigated in order to find the aging rule and microcosmic behave of the polymer insulation which worked under the PWM voltage.

Keywords

PWM invertors; electric breakdown; electric motors; insulation; space charge; PWM inverter fed motors; abroad laboratories; aging rule; domestic laboratories; pole frequency; pole voltage; polymer insulation materials; polymer residual life; solid insulation; space charge distribution; space charge measurement; Aging; Charge measurement; Current measurement; Insulation testing; Plastic insulation; Polymers; Pulse width modulation; Solids; Space charge; Voltage; Pulse Electro-Acoustic method; polyimide film; space charge; steep pulse;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials, 2008. (ISEIM 2008). International Symposium on

Conference_Location

Mie

Print_ISBN

978-4-88686-005-7

Electronic_ISBN

978-4-88686-006-4

Type

conf

DOI

10.1109/ISEIM.2008.4664514

Filename

4664514