Title :
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
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;
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
DOI :
10.1109/ISEIM.2008.4664514
