High frequency surge tester methods and apparatus

Details High frequency surge tester methods and apparatus High frequency surge tester methods and apparatus

1993-06-29

1995-03-07

Regan, Maura K.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

324520, G01R 3106

Patent

active

053961790

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.

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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, 1989, Berlin, West Germany, pp. 177-179.

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