Patent ID: 9075098
Filing Date: 2015-07-07
Classification: B60L,G01R,Y02T

Abstract:
1. A process for performing a ground fault test of a device that delivers power to a load via one or more power lines, the process comprising: programming a controller to execute, or cause to be executed, the process steps: selecting a current level of a controllable current generator from a plurality of different current levels; generating a ground fault current with the controllable current generator between a first power line of the one or more power lines and ground at the selected current level until a ground fault interrupter within the device trips in response to the ground fault current, or until expiration of an on-time interval associated with the selected current level, whichever occurs first; after generating the ground fault current at the selected current level, setting the ground fault current to zero for an off-time interval associated with the selected current level, and repeating the selecting, generating, and setting for each of the plurality of current levels, wherein: when the ground fault interrupter within the device trips, the process further comprises: reporting the selected current level at which the ground fault interrupter tripped, and a time interval from an onset of the ground fault current at the selected level, and a time when the ground fault interrupter tripped.