Electrical integrity test system for boats

Details Electrical integrity test system for boats Electrical integrity test system for boats

1995-12-06

1998-05-05

Raevis, Robert

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

G01R 3102

Patent

active

057480087

ABSTRACT:
An electrical integrity test system for boats provides circuitry for evaluating the integrity of the boat's electrical distribution AC grounding system when the boat is connected to a dock's electrical distribution system, and the integrity of the boat's galvanic isolator. The electrical integrity test system also includes a polarity detecting circuit that will activate an alarm when it detects a dock's hot and neutral conductors to be reversed. Additionally, the electrical integrity test system includes an AC ground current detecting circuit that continuously monitors the boat's AC grounding conductor for the presence of AC current. A system controller controls selected functions and sequence of functions of the described circuits. If the test system detects the AC grounding system or the boat's galvanic isolator is faulty or the dock's hot and neutral conductors are reversed or AC current flowing in the boat's AC grounding conductor, it will activate an alarm to apprise the boat operator of the faulty condition.

REFERENCES:
patent: 4757463 (1988-07-01), Ballou et al.
patent: 5177447 (1993-01-01), Marino et al.
Paper entitled "Testing Galvanic Isolators", unknown but believed to have been published sometime in 1986.
Article entitled "AC Shore Power, An Invitation To Electrocution?", Practical Sailor, Aug. 15, 1995 edition.
Article entitled "AC Systems: Safety vs. Corrosion", Ocean Navigation Magazine, Aug./Sep., 1994.
Article entitled "Galvanic Isolators", Practical Sailor, Jan. 15, 1996.
Letter from CEO of Professional Marine Inc. to Editor, Professional Boat Builder Magazine, dated Feb. 12, 1993.

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