Accession Number : ADD001228
Title : A.D.C. Operated Ground Fault Locator for Energized Shipboard A.C. Electrical Systems.
Descriptive Note : Patent Application,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Fisher,Ernest W
Report Date : 17 May 1974
Pagination or Media Count : 17
Abstract : The patent application describes a device for locating a ground fault in an energized shipboard or other A.C. electrical power system which is normally not grounded. A direct current power supply is used to inject direct current into one of the power lines of the A.C. system. A Hall sensor is placed in proximity to the outer surface of the cable under test. A center zero D.C. meter monitors the Hall output. Any meter deflection indicates a resistive ground. The fault may then be located by properly maneuvering the Hall sensor and observing where the meter deflection reverses.
Descriptors : *Test equipment, Patents, Faults, Detectors, Ground(Electrical), Shipboard, Electric power
Subject Categories : Test Facilities, Equipment and Methods
Distribution Statement : APPROVED FOR PUBLIC RELEASE