Title :
Detection of partial discharge in operating turbine generator using GHz-band spatial phase difference method
Author :
Kawada, Masatake ; Kawasaki, Zen-Ichiro ; Matsuura, Kenji ; Kuroki, Satoru ; Osawa, Teruya ; Tanaka, Hiroki
Author_Institution :
Nagoya Inst. of Technol., Japan
Abstract :
We developed PD detection system based on “Spatial Phase Difference Method” for detecting microwave (GHz) emitted from PD. We applied the PD detection system to the off-line turbine generator in the regular overhaul and the on-line turbine generator that had two built-in antennas. The detection system was able to detect the microwave emitted from PD of a few 1000 pC in operating turbine generator
Keywords :
insulation testing; machine insulation; machine testing; microwave measurement; partial discharge measurement; stators; turbogenerators; microwave emission; partial discharge detection; spatial phase difference method; stator winding insulation diagnosis; turbine generator; Circuit testing; Frequency conversion; Insulation; Microwave generation; Partial discharges; Phase detection; Signal generators; Stator windings; Turbines; Voltage;
Conference_Titel :
Electrical Insulating Materials, 1998. Proceedings of 1998 International Symposium on
Conference_Location :
Toyohashi
Print_ISBN :
4-88686-050-8
DOI :
10.1109/ISEIM.1998.741687
