Development of continuous partial discharge monitoring system for generator stator insulations

Author

Kim, Yong-Joo ; Don-Ha Hwang ; Shin, Byoung-Chol ; Park, Doh-Young ; Kim, Jeong-Woo

Author_Institution

Mech. Res. Group, Korea Electrotechnol. Res. Inst., Changwon, South Korea

fYear

2000

fDate

2000

Firstpage

5

Lastpage

8

Abstract

Recently many research activities on the diagnosis of stator winding insulation of large generators have been reported. Most of them utilize a trend analysis of partial discharges. In this paper, a novel on-line monitoring system for insulation diagnosis is proposed. This system obtains parameters such as partial discharge magnitude and dynamic stagnation voltage in selected frequency bands. The partial discharge activities can be interpreted more precisely by these techniques

Keywords

computerised monitoring; condition monitoring; hydroelectric generators; insulation testing; machine insulation; partial discharge measurement; power engineering computing; stators; turbogenerators; ADC; GUI; breakdown strength; continuous PD monitoring system; digital filtering; dynamic stagnation voltage; frequency domain analysis; generator stator insulation; large generators; on-line monitoring system; on-line sensors; partial discharge magnitude; pulse detection; selected frequency bands; software package; stator winding insulation diagnosis; wave shape; Digital filters; Filtering; Frequency; Insulation; Monitoring; Partial discharges; Power generation; Shape; Space vector pulse width modulation; Stator windings;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 2000. Conference Record of the 2000 IEEE International Symposium on

Conference_Location

Anaheim, CA

ISSN

1089-084X

Print_ISBN

0-7803-5931-3

Type

conf

DOI

10.1109/ELINSL.2000.845407

Filename

845407