Field-circuit analysis of winding insulation condition of generators stricken by overvoltage

Author

Nian, Liu ; Chi, Xie ; Fusheng, Teng

Author_Institution

Sichuan Univ., Chengdu

fYear

2005

fDate

26-26 Oct. 2005

Firstpage

82

Lastpage

84

Abstract

The transient field-circuit model of large generators has been studied, and the field-circuit analysis for the transient over-voltage of large power stations is presented. For the large generator stricken by the over-voltage from power stations, the transient field distribution in the stator winding insulator can be analyzed on line, and some insulation fault point and domain in generators can be predicted and even detected successfully. Moreover, the simulation shows that the method is feasible and valid for the generator monitoring system of large power stations

Keywords

electric generators; fault location; insulators; machine insulation; machine windings; monitoring; overvoltage; power stations; transient analysis; field-circuit analysis; generator monitoring system; insulation fault detection; on line analysis; power station; stator winding insulator; transient overvoltage; Equations; Insulation; Power generation; Power system modeling; Power system transients; Stator windings; Transformers; Transient analysis; Transmission line matrix methods; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation Conference and Electrical Manufacturing Expo, 2005. Proceedings

Conference_Location

Indianapolis, IN

Print_ISBN

0-7803-9145-4

Type

conf

DOI

10.1109/EEIC.2005.1566263

Filename

1566263