Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Patent
1991-10-18
1993-10-12
Strecker, Gerard R.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
324158MG, 324536, 324545, G01R 3134, G01R 3106
Patent
active
052529274
ABSTRACT:
In the device for detecting partial discharges in winding elements of an electrical machine, the winding element to be investigated is sampled over its length, with high voltage applied, by means of a drivable probe and the radio frequency signals initiated by the partial discharges are received by means of an antenna. The antenna signal is detected and evaluated in a test set (11) connected downstream. The probe is arranged on a support which can be conveyed, under remote control, in the machine longitudinal direction, by means of tension cables (4, 5) or an axle rod, or is provided with a dedicated drive.
REFERENCES:
patent: 2890407 (1959-06-01), Huehn et al.
patent: 4238733 (1980-12-01), Freeman
patent: 4949001 (1990-08-01), Campbell
patent: 4996486 (1991-02-01), Posedel
Cigre Report, "Diagnostics of HV Machine Insulation-From Inspection to Continuous Monitoring", A. Kelen, Cigre Symposium May 1987, Vienna 1987, pp. 1020-2005.
Cigre Paper 15/33-12, "Partial Discharge Pattern Recognition-A Tool for Diagnosis and Monitoring of Ageing", B. Fruth and J. Fuhr, Cigre Session Aug. 26-Sep. 1, 1990.
Bruhlmeier Paul
Fuhr Jitka
Hassig Martin
Kohler Rene
Kopp Albert
Asea Brown Boveri Ltd.
Do Diep
Strecker Gerard R.
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