Title :
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
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;
Conference_Titel :
Electrical Insulation, 2000. Conference Record of the 2000 IEEE International Symposium on
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-5931-3
DOI :
10.1109/ELINSL.2000.845407
