Patent ID: 8659857
Filing Date: 2014-02-25
Classification: H02H

Abstract:
1. A circuit for disconnecting a power source upon the detection of a leakage current from one of a first and a second wire connected to the power source, comprising: a sensing conductor located adjacent to one of the first and second wires for sensing a leakage current from one of the first and second wires; a disconnect switch interposed within the first and second wires connected to the power source; said disconnect switch having a disconnect switch solenoid coil for opening said disconnect switch; a threshold conduction device being conductive upon a threshold voltage applied to the threshold conduction device; a connector connecting said disconnect switch solenoid coil in series with said threshold conduction device between one of the first and second wires and said sensing conductor; and a threshold voltage generator comprising a capacitor connected in series with a diode between said sensing conductor and one of the first and second wires for charging said capacitor for generating said threshold voltage for said threshold conduction device upon a leakage current flow between said sensing conductor and one of the first and second wires and through said threshold voltage generator.