Shore power cord ground wire current detector

Details Shore power cord ground wire current detector Shore power cord ground wire current detector

2011-08-09

2011-08-09

Nguyen, Vincent Q (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

With electric power receptacle for line wire testing

C324S503000, C324S504000, C307S009100

Reexamination Certificate

active

07994795

ABSTRACT:
A current detector and indicator unit are coupled to a shore power cord for monitoring for corrosion-causing galvanic current on the ground wire of the power cord. A current transducer coupled to the ground wire senses current and provides a signal corresponding to the magnitude of the sensed current to a microcontroller. The microcontroller compares the magnitude of the current signal to one or more predetermined thresholds and outputs signals to an indicator unit to display the level of galvanic activity accordingly.

REFERENCES:
patent: 4003815 (1977-01-01), Ikeda et al.
patent: 4617472 (1986-10-01), Slavik
patent: 5748008 (1998-05-01), Landreth
patent: 6183625 (2001-02-01), Staerzl
patent: 6559660 (2003-05-01), Staerzl

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