Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of ground fault indication
Reexamination Certificate
2007-09-28
2010-10-05
Doyle, Timothy J (Department: 2831)
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of ground fault indication
C324S511000, C324S551000, C361S042000
Reexamination Certificate
active
07808245
ABSTRACT:
A testing system for a ground fault detection system of an electrical system of a machine is disclosed. The testing system has a low voltage power source, the low voltage power source capable of operation that is independent from a high voltage power source of the machine. The testing system also has a variable current source that is permanently connected to a positive voltage bus or to a negative voltage bus of the electrical system of the machine, where the machine operates self-sufficiently. The testing system also has a controller connected to the variable current source. The testing system also has an input device, where the input device is connected to the controller.
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Johnson Curtis Brian
Lindsey Robert Wayne
Caterpillar Inc
Doyle Timothy J
Finnegan, Henderson, Farabow, Garrett & Dunner LLC
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