Tester for a frequency-dependent ground fault interrupt wiring device
AssigneePass & Seymour, Inc.
InventorsJoshua P. Haines, Michael F. McMahon
Life of this patent
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Abstract
A tester for a frequency-dependent ground fault interrupt wiring device, including: a tester circuit, including: a switch disposed between a first terminal and a second terminal, wherein a leakage current flows through a leakage path between the first terminal and the second terminal when a voltage is applied across the first terminal and the second terminal, a magnitude of the leakage current being determined, at least in part, by a conductivity of the switch; and a waveform generator configured to generate a periodic output signal having a frequency, wherein the switch is driven to modulate the magnitude of the leakage current such that the leakage current has a frequency substantially equal to a frequency of the waveform generator.
Claims12
A tester for a ground fault interrupt wiring device, comprising:
- a housing;
- a plurality of plug blades extending from the housing, the plurality of plug blades being dimensioned and arranged to engage with a receptacle of the ground fault interrupt wiring device, wherein the plurality of plug blades includes a first plug blade that is positioned to engage with a hot terminal of the receptacle and a second plug blade that is either positioned to engage with a neutral terminal of the receptacle or is positioned to engage with an earth ground terminal of the receptacle;
- a tester circuit disposed within the housing, wherein the tester circuit comprises a switch electrically connected between the first plug blade and the second plug blade, wherein the tester circuit is configured to modulate a leakage current along a leakage path between the first plug blade and the second plug blade by adjusting a drive signal provided to the switch.
Dependencies are inferred from the claim text.