Title :
Novel on-line partial discharge monitoring system for generator/motor stator insulations
Author :
Kim, Yong-Joo ; Hwang, Don-Ha ; Park, Doh-Young ; Song, Sang-Ock
Author_Institution :
Mechatronics Res. Group, Korea Electrotechnol. Res. Inst., Changwon, South Korea
Abstract :
Nowadays on-line monitoring scheme with trending technique is widely adopted in insulation diagnosis. In this paper, two types of online monitoring instrumentation for an insulation diagnosis are proposed. The first unit obtains the parameters such as partial discharge magnitude and dynamic stagnation voltage (DSV) in selected frequency bands. The partial discharge activities can be interpreted more precisely by these techniques. The second one indicates the partial discharge spectra in reduced time resolution with lower cost. Several online sensors for partial discharges monitoring are also introduced
Keywords :
electric generators; electric motors; insulation testing; machine insulation; machine testing; monitoring; partial discharge measurement; dynamic stagnation voltage; generator/motor stator insulation; insulation breakdown testing; online partial discharge monitoring system; partial discharge activities; partial discharge magnitude; selected frequency bands; Costs; Digital filters; Frequency domain analysis; Insulation; Monitoring; Partial discharge measurement; Partial discharges; Space vector pulse width modulation; Stators; Voltage;
Conference_Titel :
Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on
Conference_Location :
Shenyang
Print_ISBN :
7-5062-5115-9
DOI :
10.1109/ICEMS.2001.970679
