Invention Grant
- Patent Title: Testing method for a ground fault detector
- Patent Title (中): 接地故障检测仪的测试方法
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Application No.: US11905264Application Date: 2007-09-28
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Publication No.: US07808245B2Publication Date: 2010-10-05
- Inventor: Robert Wayne Lindsey , Curtis Brian Johnson
- Applicant: Robert Wayne Lindsey , Curtis Brian Johnson
- Applicant Address: US IL Peoria
- Assignee: Caterpillar Inc
- Current Assignee: Caterpillar Inc
- Current Assignee Address: US IL Peoria
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner LLC
- Main IPC: G01R31/14
- IPC: G01R31/14 ; H01H31/12 ; H02H3/00

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.
Public/Granted literature
- US20090085575A1 Testing method for a ground fault detector Public/Granted day:2009-04-02
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