Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Patent
1995-06-12
1996-04-09
Wieder, Kenneth A.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
324418, 340644, G01R 3106
Patent
active
055065082
ABSTRACT:
In one aspect of the present invention, an apparatus detects a shorted winding condition of a solenoid coil. The apparatus includes a reference solenoid that is connected to a test solenoid. A sine generator drives the reference solenoid with a sinusoidal waveform to cause an induced voltage across the test solenoid. A meter determines the voltage difference between the solenoids and compares the voltage difference to a predetermined value.
REFERENCES:
patent: 2788486 (1957-04-01), Guggi
patent: 3267370 (1966-08-01), Praeg
patent: 5059912 (1991-10-01), Trampert
Caterpillar Inc.
Masterson David M.
Tobin Christopher M.
Wieder Kenneth A.
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