Patent ID: 9312680
Filing Date: 2016-04-12
CPC Classification: G01R,H02H

Claim Text:
1. A leakage current detection interrupter (LCDI) device with self-testing function, comprising: a leakage current detection unit, including multiple current-carrying wires for carrying a current from an AC power source and at least one leakage current detection wire for detecting a leakage current of the current-carrying wires; and a phase protection unit, coupled to an input side of at least one current-carrying wire of the multiple current-carrying wires, and coupled to an output side of at least another current-carrying wire of the multiple current-carrying wires, for forming at least one current path between the input side of the one current-carrying wire and the output side of the other current-carrying wire via the leakage current detection wire and the phase protection unit to pass a current in the current path during a half cycle of the AC power source, wherein the phase protection unit generates a control signal for disconnecting the electrical coupling between the LCDI and a power source under any one of a group of conditions including: when a leakage current of the current-carrying wires is detected by the one leakage current detection wire, when the leakage current detection wire is open, and when the one or the other current-carrying wire is open.