Epoxy/mica insulation condition assessment using AC current method

Author

Hao, Yanpeng ; Wang, Guoli ; Xie, Hengkun

Author_Institution

State Key Lab. of Electr. Insulation for Power Equip., Xi´´an Jiaotong Univ., China

fYear

2001

fDate

2001

Firstpage

705

Lastpage

708

Abstract

In this paper, accelerated multistresses aging tests in the laboratory have been conducted on electric machine stator epoxy/mica insulation. In different aging stages, AC current tests and breakdown tests were performed. The characteristics of AC current of stator insulation were analyzed and the voltage U_pi2, at which the second point of current rapid increase appears, was investigated. The correlation between the voltage U_pi2 and the residual breakdown voltage was also analyzed

Keywords

ageing; electric machines; epoxy insulation; insulation testing; life testing; machine insulation; machine testing; mica; stators; AC current tests; U_pi2 voltage; accelerated multistresses aging tests; aging stages; breakdown tests; electric machine stator epoxy/mica insulation; residual breakdown voltage; Accelerated aging; Dielectrics and electrical insulation; Electric breakdown; Electric machines; Insulation testing; Laboratories; Life estimation; Performance evaluation; Stators; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on

Conference_Location

Himeji

Print_ISBN

4-88686-053-2

Type

conf

DOI

10.1109/ISEIM.2001.973775

Filename

973775