Patent ID: 6788504
Filing Date: 2004-09-07
Classification: H02H

Abstract:
A mobile system for supplying electric power to an electrical load, comprising:a vehicle; an electric power source in said vehicle comprising a battery; a first receptacle electrically coupled to said electric power source via a plurality of power line conductors; a second receptacle electrically coupled to said electric power source via said power line conductors; a ground fault circuit interrupter electrically connected to said power line conductors, said ground fault circuit interrupter having an output for providing a trip signal used by the mobile system to interrupt current flow over said power line conductors to thereby provide ground fault protection of said second receptacle against a current imbalance in said power line conductors; a switch device electrically coupled between said electric power source and said first and second receptacles, with said switch device being connected in series with said ground fault circuit interrupter such that current flowing through said ground fault circuit interrupter flows through said switch device; wherein said switch device can be switched between a first state, in which said first receptacle receives power from said electric power source that is unprotected by said ground fault circuit interrupter, and a second state, in which said second receptacle receives power from said electric power source that is protected by said ground fault circuit interrupter against a current imbalance in said power line conductors.