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Journal article

Propagation of Partial Discharge and Noise Pulses in Turbine Generators

By Henriksen, Mogens1,2; Stone, G. C.; Kurtz, M.

From

Electric Components, Department of Electrical Engineering, Technical University of Denmark1

Department of Electrical Engineering, Technical University of Denmark2

Changes with time in the partial discharge (PD) activity originating in a generator stator's insulation system provide information about the electrical integrity of the stator winding. It is desirable to measure PD during normal service to minimize costs. To do this successfully, the influence of electrical interference must be reduced.

Tests are reported which characterize the nature of discharge and noise pulses when using capacitive couplers mounted on each of the phase leads and an RF current transformer mounted on the neutral lead for signal detection. Significant differences between PD and electrical noise have been observed.

Language: English
Publisher: IEEE
Year: 1986
Pages: 161-166
ISSN: 15580059 and 08858969
Types: Journal article
DOI: 10.1109/TEC.1986.4765750
Keywords

Costs Dielectrics and electrical insulation Interference Noise generators Partial discharge measurement Partial discharges Pulse generation Stator windings Testing Turbines

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