Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Patent
1991-11-22
1993-10-26
Wieder, Kenneth A.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
324536, 324520, 324545, 324726, G01R 3102
Patent
active
052569772
ABSTRACT:
A high frequency surge tester includes a high frequency detection circuit which is used to detect microfracture defects in the insulation of wire on wound coils. The high frequency detection circuit includes a high-pass filter which isolates an errant voltage response so that it can be integrated and compared to threshold limits to determine the magnitude of defects. The surge tester also detects shorts between coils and shorts between turns of the same coil.
REFERENCES:
patent: 2996664 (1961-08-01), Vogel
patent: 3173086 (1965-03-01), Kresge
patent: 4006410 (1977-02-01), Roberts
patent: 4356443 (1982-10-01), Emery
patent: 4651086 (1987-03-01), Domenichini et al.
patent: 4779051 (1988-10-01), Grunewald
Rylander: "Testing Insulation with High Frequency", Electric Journal--Jan., 1928.
K.-H. Linsel et al., "Diagnose von Isloierungsfehlern in Wicklungen elektrischer Maschinen", Elektrie, vol. 42, No. 5, May 1989, Berlin, West Germany, pp. 177-179.
Domenichini Carlo
Linari Massimo
Axis USA Inc.
Jackson Robert R.
Morris Robert W.
Solis Jose M.
Wieder Kenneth A.
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